2014 MERCEDES-BENZ GLK-Class Problems & Complaints
Real owner complaints and problems reported to the National Highway Traffic Safety Administration (NHTSA). View common issues by component.
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Complaints Reported
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Complaints by Component
AIR BAGS
72 complaints
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that while operating the vehicle, the driver’s side air bag warning light remained illuminated. The cause of the failure was not yet determined. The local dealer was notified of the failure, but no assistance was provided. The manufacturer was not yet contacted. The failure mileage was 58,000.
Aug 01, 2023
The contact owns a 2014 Mercedes-Benz GLK250. The contact stated that the front passenger’s side air bag warning light failed to function as designed. The vehicle was taken to the dealer where the mechanic informed the contact that the sensor light was permanently disabled. The contact then stated that he was informed of NHTSA Campaign Number: 19V010000 (Air Bags). The manufacturer was notified of the failure and advised the contact to call the NHTSA Hotline. The failure mileage was approximately 75,000.
Sep 23, 2022
CONTACTED MERCEDES DEALER OVER A YEAR AGO TO REPLACE AIR BAG AND THEY STILL TELL US AS OF TODAY THAT THEY DO NOT HAVE THE PARTS TO PERFORM THE RECALL AND THERE IS NOTHING THEY CAN DO.
Oct 27, 2020
TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ GLK350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE MANUFACTURER WAS CONTACTED BY PHONE AND IT WAS CONFIRMED THAT PARTS WERE NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
Oct 23, 2020
SUMMARY: MERCEDES-BENZ USA IS RECALLING CERTAIN MY 2010-2017 C-CLASS, GLK-CLASS, SLS-CLASS AND E-CLASS COUPE MERCEDES-BENZ VEHICLES EQUIPPED WITH PASSENGER-SIDE FRONTAL AIRBAGS AFFECTED BY THE DEFECT DECISION OF TK HOLDINGS, INC. ( TAKATA ). UNDER CERTAIN CIRCUMSTANCES DURING A CRASH THAT NECESSITATES FRONTAL AIRBAG DEPLOYMENT, THE DEFECT IN YOUR PASSENGER-SIDE FRONTAL AIRBAG INFLATOR MAY CAUSE THE INFLATOR TO EXPLODE. A PASSENGER-SIDE INFLATOR EXPLOSION DURING DEPLOYMENT COULD RESULT IN METAL FRAGMENTS STRIKING THE FRONT PASSENGER OR OTHER OCCUPANTS, POSSIBLY CAUSING SERIOUS INJURY OR DEATH. SAFETY RISK: ACCORDING TO TAKATA, IN THE EVENT OF AN INFLATOR EXPLOSION, METAL FRAGMENTS COULD PASS THROUGH THE AIR BAG CUSHION MATERIAL, WHICH MAY RESULT IN INJURY OR DEATH TO VEHICLE OCCUPANTS.
Oct 15, 2020
+ 67 more complaints for this component
UNKNOWN OR OTHER
4 complaints
Rear powered tailgate closes by itself. There is no warning. It closes VERY rapidly. This hit me in the head, but I am mostly concerned with others, such as elderly people and children. It could easily cause a concussion, or worse. I have contacted MBUSA advocacy at 1-800-222-0100 three times. I was told all three times that I would be contacted back within 24-48 hours (business days) regarding this safety issue. It has now been two weeks, and I have not received anything such as a returned phone call, email, etc. The vehicle is at my residence and available for any inspection or test, etc. I also have video of this problem. Again, the rear powered tailgate closes by itself, without warning. It closes VERY rapidly with force far greater than gravity alone.
Mar 21, 2024
MY 2014 MERCEDES GLK 250 WITH 16,705 MILES, ON 11/03/2015 EXPERIENCED THE ENGINE WARNING DISPLAY STATING TO ADD BLUE. I DID THIS BUT THE WARNING DID NOT REMOVE BUT STATED I HAD 10 STARTS REMAINING. I WAS 700 MILES FROM HOME SO RETURNED CONSERVING MY REMAINING STARTS. FOUND MULTIPLE PROBLEMS WITH THE BLUE TECH EMISSIONS SYSTEM INCLUDING DEF INJECTOR NOZZLE FAILING TO SPRAY. ALL COVERED BY WARRANTY. ON 06/15/2019 WITH 58,129 MILES, THE ENGINE WARNING LIGHT AGAIN CAME ON TO ADD BLUE. I CHECKED BLUETEC LEVEL TO BE NEARLY FULL. THE WARNING STATED I HAD EIGHT REMAINING STARTS. BEING 700 MILES FROM HOME, I RETURNED. HAVING THREE REMAINING STARTS.I TOOK THE VEHICLE IN FOR IMMEDIATE REPAIR. FOUND NOX SENSOR 2 FAULTY AND WAS REPLACED. ON 6/28/2019 WITH 58,126 MILES, THE ADD BLUE WARNING AGAIN APPEARED. THE BLUEDEF WARNING ONLY 10 STARTS REMAINS. THE NEAREST MERECEDES DEALER WAS IN DENVER BEING 173 MILES AWAY. I TOOK IT THERE WHERE THEY REPLACED DEF MODULE, THE PREHEATER AND TANK TEMP AMOUNG OTHER FAULTS. ON 7/15/2019, WITH APPROX. 58,300 MILES, THE SAME WARNING APPEARED. RETURNED TO THE SAME DENVER DEALER WHO THEN REPLACED THE NOX SENSORS IN THE EMISSION SYSTEM. I WAS INFORMED THAT THE FREQUENCY OF REPAIR FOR THIS MODEL IS VERY HIGH AND EXPENSIVE (MY LAST TOTALED $5,000). THIS VEHICLE IS TOTALLY UNRELIABLE AND SHOULD HAVE BEEN RECALLED. BECAUSE OF THE EMMISION SYSTEM UTILIZED, NUMBEROUS OTHER PROBLEMS OCCUR SUCH AS THE COMPLETE WINDSHIELD WASHER SYSTEM WAS REPLACEDDUE TO THE EXTREME HEAT CREATED BY THE SYSTEM. SAME WITH OIL LEAKS, ETC.. MERCEDES COULD HAVE AT A MINIMUM EXTENDED THEIR SKIMPY WARRANTY OF 50,000 MILES BUT THEY REFUSE TO ACKNOWLEDGE ANY FAULT CLAIMING "THE BEST OR NOTHING"! THIS MODEL IS DEFINITELY NOTHING!
Jul 31, 2019
ROLLING, BECAUSE OF GEAR SHIFT LEVER, YOU HAVE TO PUSH BUTTON TO GET IT INTO PARK AUTOMATIC, JEEP JUST HAD A RECALLED FOR THE SAME THING. MY MECERDE ROLL ON ME SEVERAL TIME. IT EASY TO FORGET TO PUSH BUTTON IF YOU DON'T IT STAY IN NEUTRAL
Apr 23, 2016
LIGHT APPLICATION OF THE BRAKES RESULTED IN ABRUPT FULL STOP AND LEFT CAR IN PARK. COULD NOT GET CAR TO SHIFT OUT OF PARK EVEN WHEN APPLYING BRAKE AS INDICATED IN DASHBOARD MESSAGE. OTHER SCREEN MESSAGE INDICATED "DANGER OF ROLLING" AND DISPLAYED PICTURE OF CAR WITH AN ARROW ABOVE IT. NO OTHER WARNING LIGHTS. DEALER REPLACED ELECTRONIC IGNITION AND PROVIDED NEW KEYS.
Oct 12, 2014
FUEL/PROPULSION SYSTEM
4 complaints
My vehicle started smelling like gas. Took it in for inspection. Mechanic found a leak in the fuel assembly, resulting in gasoline pooling inside the vehicle under the back seat and leaking out through the bottom of the vehicle. I went online and noticed a recall was issued for 2011 and 2012 models. Ongoing issues with fuel modules leaking although no visible cracks were present. I contacted Mercedes to have them review if this would be covered under their recall and they declined saying they did not want to cover this under their recall. Mercedes made me take the vehicle in to their dealership in Kahului Maui to verify the issue which I did. They sent me a quote for the repair with no specific parts listed, just fuel module in the amount of $1884.71. Comments: "left fuel pump/filter assembly leaking" No warning lamps or check engine lights came on which is disturbing since exposed gasoline could lead to ignition with a small spark. With further investigation online I found that I am not the only GLK350 2014 owner that is having issues with fuel module leaking. Mercedes inspection form available here: https://app.mykaarma.com/service-cart/mpi/t8xQy8Ac2bYidaNLm0xxzW7MeeqxfPne_HG5wpWCmhQ/detail
Mar 14, 2023
The Fuel pump tank closing cover (P/N 204-470-04-38) cracked and caused fuel to pool on it. This happens when the tank is above 3/4 full resulting in strong fuel fumes when the car is parked inside. It is likely when parked in a garage to be an explosion hazard due to the fumes. Looking on the user forums and internet this is not an uncommon issue and should be addressed as this design is used on most Mercedes fuel tanks in the 2000's.
Nov 05, 2021
WE STARTED TO DEVELOP A STRONG SMELL OF GAS INSIDE THE VEHICLE. I STARTED TO RESEARCH ONLINE TO FIND THAT MANY MERCEDES MODELS HAVE THE SAME PROBLEM, A CRACK DEVELOPS ON A CAP THAT HOUSES THE FUEL PUMP UNDER THE BACK SEAT INSIDE THE VEHICLE. THIS PERMITS GAS FUMES TO ENTER THE VEHICLE, LET ALONE ACTUAL GASOLINE TO COLLECT ABOVE THE CAP AND LEAKING UNDER THE SEAT INSIDE THE VEHICLE. SOME PEOPLE TRY TO JUST PATCH IT WITH EPOXY AND ATTEMPT TO REPLACE PARTS. BUT THIS PROBLEM SEEMS TO BE ONGOING FOR YEARS ON VARIOUS MODELS AND OBVIOUSLY IS A DESIGN FLAW THAT NEEDS IMMEDIATE ATTENTION BY THE MANUFACTURER. YOU NEED TO DRIVE WITH THE WINDOWS OPEN AND IF THE VEHICLE IS PARKED OVERNIGHT, YOU CANNOT ENTER THE VEHICLE FOR A LONG TIME IN THE MORNING, UNTIL IT AERATES.
Feb 05, 2021
TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ GLK350. WHILE THE CONTACT'S SPOUSE WAS DRIVING THE VEHICLE, THERE WAS AN ABNORMAL FUEL ODOR. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF SCOTTSDALE (4725 N SCOTTSDALE RD, SCOTTSDALE, AZ 85251, (480) 409-0409) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT A PLASTIC TUBING LEADING TO THE FUEL INJECTOR FRACTURED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 72,000. VEHICLE WAS TAKEN TO MERCEDES BENZ OF CHANDLER (CHANDLER, AZ) FOR REPAIRS. CONSUMER WAS ALSO INFORMED THAT THE PLASTIC RESERVOIR WAS CRACKED. *DL
Nov 05, 2019
SERVICE BRAKES
4 complaints
My concern is the repeated failure of the front wheel speed sensors rendering the ABS system and Traction Control System inoperable. The Speed Sensors failed as follows: 1.) 2015 at 9,474 Miles 2.) 2020 at 26,293 Miles 3.) 2022 at 30,281 Miles The vehicle has extremely low miles for the repeated failures to have occurred. If you research various Mercedes Benz Blogs online, you will see a trend of repeated speed sensors failures in all models of Mercedes cars & Mercedes Vans.
Jun 25, 2022
IN DECEMBER 2019 I WAS ON THE EXPRESSWAY AND THE TRAFFIC WAS BUMPER TO BUMPER. I WAS DRIVING BEHIND A LADY AND WHEN SHE STOPPED I WENT TO PUT MY FEET ON THE BRAKES AND THE BRAKES WENT TO THE FLOOR AND MY CAR HIT HER. I HAD MY CAR REPAIRED OF COURSE AND PAID MY DEDUCTIBLE. MY CAR WAS DRIVING PRETTY REGULAR AFTER BEING REPAIRED. THEN IN AUGUST 2020 THE SAME THING HAPPENED AGAIN. I WAS DRIVING TO GET ON THE EXPRESSWAY AND AS I WAS ENTERING THE EXPRESSWAY AS I BEGIN TO STOP BECAUSE A CAR WAS IN FRONT OF ME AND MY BRAKES WENT TO THE FLOOR AGAIN AND I HIT THE DRIVER IN FRONT OF ME. I AM A GOOD DRIVER HAVING DRIVEN A MAIL TRUCK ON MY JOB FOR YEARS AND I NEVER HIT ANYONE BEFORE IN MY LIFE WHILE DRIVING ANY VEHICLE. I JUST WANT TO REPORT MU VEHICLE ISSUE. THANK YOU VERY MUCH.
Oct 07, 2020
THE PARKING BRAKE FAILS TO RELEASE IN COLD WEATHERS.
Nov 10, 2018
WE WERE DRIVING ON THE INTERSTATE IN THE MIDDLE OF DENVER WITH CRUISE CONTROL ON WHEN THE BRAKES ENGAGED. WE WERE ALMOST AT A COMPLETE STOP WHEN MY HUSBAND WAS ABLE TO GET THE CAR TO ACCELERATE AGAIN AND WE LUCKILY WERE NOT REAR ENDED.
Jul 12, 2016
POWER TRAIN
3 complaints
Vehicle is a 4 wheel drive SUV, having the Mercedes-Benz "4Matic" drivetrain, has it's Center Differential Planetary Gearset (With Integral Clutch Pack) in failure. Mercedes is clearly aware that this is a drivetrain component that fails prematurely as there is a Technical Service Bulletin (LI28.00-P-051499) that provides methodology for diagnosing the failure for 4Matic equipped vehicles from 2003 to 2016, specifically listing 83 different 4Matic equipped vehicles. Particular caution is called out as to special lubrication required prior to assembling the component into the drive train. Very likely that the root cause of the widespread failures was the part not being installed correctly. Though the failure evidences initially by front wheel vibrations and shuddering at low speed, it is a latent serious safety issue in that the component could fail catastrophically when stressed, i.e., hard acceleration when merging onto a highway, at best causing a sudden imbalance in front/rear propulsion resulting in an affected vehicle compromised in its steering, or at worst locking up front or rear wheels resulting in a spin out. Mercedes has replaced this equipment under warranty for an unknown number of vehicles, but refuses to acknowledge how widespread the problem is. Mercedes Customer Assistance says "no recall' so refuses to address the issue and flatly told me to take it up with the NHTSA. Public safety dictates that all affected vehicles need to be inspected for the failure and these defective components replaced as a recall.
Jun 20, 2024
THE VEHICLE WILL NOT ENGAGE IN D OR R MODE. UNABLE TO DRIVE. ERROR MESSAGE IN COMBI DISPLAY = "SERVICE REQUIRED, DO NOT SHIFT GEARS, VISIT DEALER". THE CAR WAS ALREADY THREE TIMES AT THE MERCEDES DEALER & REPAIR SHOP FOR THE EXACT SAME PROBLEM, THIS IS THE FOURTH INCIDENT.
May 21, 2017
THE VEHICLE WILL NOT ENGAGE IN D OR R MODE. UNABLE TO DRIVE. ERROR MESSAGE IN COMBI DISPLAY = "SERVICE REQUIRED, DO NOT SHIFT GEARS, VISIT DEALER". THE CAR WAS ALREADY TWICE AT THE MERCEDES DEALER & REPAIR SHOP FOR THE EXACT SAME PROBLEM, THIS IS THE THIRD INCIDENT.
Aug 12, 2015
STRUCTURE
3 complaints
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that while the vehicle was at the dealer for a service appointment for the auxiliary battery replacement, the contact was informed that water was in the spare wheel storage location. The contact was informed that the water level measured to be a quarter of a foot of water. In addition, the water was also noticed to be in the auxiliary battery storage area. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 55,714.
Feb 16, 2024
The lift gate has an automatic open feature like many vehicles. When you press the handle or use the remote control to open the rear lift gate, the gate opens all the way. After some time (5 - 30 seconds), the gate slams suddenly either to half way open, or slams completely shut on its own. This is especially dangerous when a person is under the gate getting something out of the trunk, and the heavy metal gate suddenly slams on to their head.
Oct 31, 2023
TL* THE CONTACT OWNS A 2014 MERCEDES BENZ GLK250(NA). THE CONTACT STATED THAT SHE FORGOT TO CLOSE THE HATCH BACK DOOR AND WHILE DRIVING FORWARD OUT OF THE GARAGE, IT CRASHED INTO THE GARAGE DOOR SHATTERING THE GLASS. THE CONTACT MENTIONED THAT SHE BELIEVES IT WAS A SAFETY ISSUE SINCE THE VEHICLE DID NOT ALERT HER THAT THE DOOR WAS STILL OPEN. THE VEHICLE WAS TAKEN TO THE DEALER. THE TECHNICIAN STATED THAT THEY COULD NOT ALTER THE DESIGN OF THE VEHICLE. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 6,000. UPDATED 08/28/14*LJ THE CONSUMER WAS ADVISED THE ALARM FOR THE HATCHBACK ONLY SOUNDS WHEN THE VEHICLE IS BEING DRIVEN MORE THAN 5 MPH. UPDATED 09/5/2014 *JS
May 23, 2014
VISIBILITY/WIPER
3 complaints
On 11/18/2023, while driving my GLK350 2014, I decided to open and later close the sunroof. As I closed the sunroof, I heard a distinct cracking sound, which caught my attention. Initially, I was unsure of the source of the sound and continued driving. It wasn't until I arrived home that I made a shocking discovery - the front black stationary window panel, located just above the windshield, had shattered unexpectedly. Prior to this incident, I had meticulously cared for my car, ensuring it was regularly maintained and kept in excellent condition. There were no visible cracks or signs of damage on the front black stationary window panel. I even hand-washed the vehicle earlier that day and inspected the panel, confirming its integrity. I had a clear view of the area around the car while I was on a ladder, ruling out the possibility of any rocks or debris causing the breakage. My adult daughter was present in the car with me as a witness to this unfortunate event. We were both astonished by the sudden and unexplained shattering of the window panel. Given the circumstances, it became evident that there is a significant safety concern regarding the GLK350 2014 model's front black stationary window panel. The shattered panel poses serious risks to the safety of both the driver and passengers. These risks include compromised structural integrity, the potential for harmful glass projectiles, and impaired visibility that could lead to accidents or hazardous driving situations. To address these urgent safety concerns, I have written this letter to request an immediate safety recall for all GLK350 2014 vehicles. It is our collective responsibility to ensure the safety and well-being of all drivers and passengers who rely on your esteemed automobile brand. Please consider the gravity of this situation and take swift action to rectify
Nov 19, 2023
1. Windshield wiper assemblies failed to operate. 2. During severe rainstorm in Northern California, driver side wiper arm stopped working while I was driving on freeway. 3. Confirmed by independent service center. He showed me a broken part under the hood. He said it would cost close to $1000.00 to repair. 4. I will be taking the car to a Mercedes Benz dealer for a second opinion. 5. No warning lights appeared.
Jan 12, 2023
TAKEN GLK350 THREE TIMES TO DEALERSHIP FOR HAVING ISSUES WITH WATER COMING BACK TO DRIVERS FRONT WINDSHIELD WHEN RAINING AND NOT HAVING THE ABILITY TO SEE ON DRIVERS SIDE DUE TO HEAVY SMEAR OF WATER BEING LEFT BEHIND WHEN WIPERS GOING BACK DOWN AFTER WIPING OFF , HAPPENS ANY TIME IT RAINS LIGHT TO MODERATE. *TR
Aug 15, 2014
VEHICLE SPEED CONTROL
3 complaints
The contact owns a 2014 Mercedes Benz GLK250. The contact stated while driving at a slow speed and seeking a parking spot, the vehicle accelerated independently and caused her to crash into a parked vehicle. The contact stated no warning light was illuminated. The air bags did not deploy. The contact stated she did not sustain any injuries and her daughter (front passenger side) was feeling dizzy but declined to seek medical attention. A police report was filed. The vehicle was not drivable. The contact towed the vehicle to an independent mechanic. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 122,000. The consumer was told to obtain a EDR from Mercedes who than stated, you have to request that information from the officer who filed the report to request a subpoena from a Judge, but the request was denied by the officer. Also, the vehicle was deemed as totaled but the air bags did not deploy. UPDATE: 07/01/2023- This letter is a follow-up to my initial telephone complaint over 4 ½ months ago filed with NHTSA concerning the uncontrollable acceleration of my vehicle on January 6, 2023, resulting in a collision with a parked vehicle. The details are again attached for your review in the following correspondence: •March 31, 2023 update and completed DOT Owner's Questionnaire •February 18, 2023 update •April 20, 2023 letter from Mercedes Benz •My accident photos •Police Report and other supporting documentation
Jan 09, 2023
TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ GLK350. THE CONTACT STATED THAT A WARNING LIGHT INDICATED A DANGER OF THE VEHICLE ROLLING OVER. THE CONTACT APPLIED THE ACCELERATOR PEDAL WHILE IN REVERSE, BUT IT DID NOT RESPOND AND THE WARNING LIGHT FLASHED. SUDDENLY, THE VEHICLE REVERSED AND CRASHED INTO THE GARAGE AND A POLE. THE VEHICLE WAS STUCK SIDEWAYS. A FLATBED TOW TRUCK WAS USED TO MOVE THE VEHICLE AND THE INSURANCE COMPANY REPAIRED THE BODY DAMAGE. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO A DEALER FOR FURTHER INSPECTION. THE APPROXIMATE FAILURE MILEAGE WAS 12,000.
Jun 03, 2016
TL* THE CONTACT OWNS A 2014 MERCEDES BENZ GLK350. THE CONTACT STATED THAT WHILE PARKING, THE VEHICLE SUDDENLY ACCELERATED WITHOUT ANY WARNING AND CRASHED INTO ANOTHER VEHICLE. THE CONTACT MENTIONED THAT SHE ENGAGED THE BRAKES BUT IT FAILED TO STOP THE VEHICLE. A POLICE REPORT WAS NOT FILED AND NO INJURIES WERE REPORTED. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 8,200.
Jun 27, 2014
STEERING
2 complaints
Steering column is stuck tilted in upmost highest position and will not adjust down lower.
Dec 11, 2023
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that while stopped at a red light, the steering wheel malfunction warning light appeared on the instrument panel while the contact was attempting to make a left turn. During the failure, the vehicle stalled, and the contact managed to coast the vehicle to the side of the road. Due to the failure, the vehicle was taken to the dealer. Upon investigation, the contact discovered NHTSA Campaign Number: 17V252000 (Steering) which she linked to the failure. The dealer then informed her that the vehicle was not under recall and the contact was given an estimate for a diagnostic test. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 120,000.
Mar 01, 2023
FUEL SYSTEM, GASOLINE
2 complaints
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated while starting the vehicle after refueling, there was an abnormal gasoline odor inside the vehicle. The vehicle was taken to the dealer and the contact was informed that the fuel pump was leaking onto the rear seats. The contact was informed that the fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, and a case was filed. The failure mileage was 64,000.
Jun 12, 2023
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that while driving he noticed a fuel odor throughout the vehicle. The contact referenced NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline). Additionally, the contact stated that when he attempted to refuel the vehicle from a half tank, gasoline started spilling from the filler neck unto the exhaust pipes. The dealer was notified of the failure and an appointment was scheduled. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and the contact stated that he was redirected to the manufacturer’s website. The failure mileage was approximately 90,000.
Sep 09, 2022
VISIBILITY
2 complaints
The contact owns a 2014 Mercedes Benz GLK350. The contact stated while driving at various speeds, there was a loud sound coming from the sunroof. The contact stated that there was no warning light illuminated. The vehicle was taken to the local dealer where it was diagnosed with the cassette part that needed to be replaced. The vehicle was repaired however, after retrieving the vehicle, the contact stated that an abnormal sound was coming from the sunroof. The sunroof glass shattered and glass shards fell onto the contact. The contact then took the vehicle back to the dealer where it was diagnosed that the sunroof needed to be replaced. The contact related the failure to an unknown recall. The manufacturer was informed of the failure and informed the contact that she would receive a callback. The failure mileage was approximately 180,000.
May 21, 2021
TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ GLK350. WHILE DRIVING APPROXIMATELY 45 MPH, THE SUN ROOF SHATTERED. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO LOKEY AUTOMOTIVE GROUP (LOCATED AT 27758 US HWY 19 N, CLEARWATER, FL 33763, (727) 799-2151) WHERE THE CONTACT WAS INFORMED THAT THERE WAS NO EVIDENCE TO PROVE THAT THE SUN ROOF WAS STRUCK BY DEBRIS AND THAT THE FRACTURE WAS DUE TO A MANUFACTURER DEFECT. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND THE VEHICLE WAS REPAIRED FOR FREE. THE APPROXIMATE FAILURE MILEAGE WAS 51,850.
Aug 07, 2019
WHEELS
2 complaints
TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ GLK350W2. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC TO HAVE THE WHEELS SERVICED. THE CONTACT WAS INFORMED THAT THE LUG NUTS WERE DEFECTIVE AND A SPECIAL WRENCH WAS NEEDED TO BREAK OFF THE LUG NUTS. THE CONTACT SPOKE WITH MERCEDES-BENZ OF ARCADIA (101 N SANTA ANITA AVE, ARCADIA, CA 91006, 626-701-8904) AND WAS INFORMED THAT THE LUG NUTS WERE NOT DEFECTIVE. THE DEALER OFFERED THE CONTACT TO PURCHASE A SPECIAL WRENCH AND BOLTS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS 20,000.
Oct 24, 2019
THE TIRES ON MERCEDES VEHICLES ARE UNSAFE. THE ARE VERY FRAGILE AND ARE VERY QUICK TO BLOW OUT OR DEFLATE. IN LESS THAN 2YRS, WE HAVE REPLACED 5 TIRES. THERE HAVE BEEN 343 COMPLAINTS TO THE OFFICE OF CONSUMER AFFAIRS ABOUT THE CONTINENTAL TIRES ON MERCEDES VEHICLES. IN ADDITION, THERE ARE DOZENS OF WEB SITES AND FORUMS COMPLAINING ABOUT THIS ISSUE, INCLUDING: HTTP://WWW.WORLDLAWDIRECT.COM/FORUM/CLASS-ACTIONS-DEFECTIVE-PRODUCTS/7442-MERCEDES-BENZ-TIRES-DONT-SUPPORT-VEHICLE.HTML HTTP://WWW.MBCA.ORG/FORUM/BAD-CONTINENTAL-TIRES HTTP://MBWORLD.ORG/FORUMS/C-CLASS-W204/428474-BUBBLES-CONTINENTAL-TIRES.HTML HTTP://WWW.BENZWORLD.ORG/FORUMS/W211-E55-AMG-E63-AMG/1173312-CONTINENTAL-TIRE-PROBLEMS.HTML HTTP://ANSWERS.EDMUNDS.COM/QUESTION-2009-MERCEDES-SL-550-TIRE-RIM-PROBLEMS-109191.ASPX THE HIGH RATES OF BLOWOUTS AND FLATS INCREASE THE RISK OF AN ACCIDENT. MERCEDES NEEDS TO DO A RECALL ON THESE TIRES AND REPLACE THEM WITH STRONGER TIRES.
Jul 03, 2015
FUEL SYSTEM, GASOLINE,STRUCTURE
1 complaint
See attached document for complaint.
Oct 16, 2025
STEERING,ELECTRICAL SYSTEM,UNKNOWN OR OTHER
1 complaint
1. What component or system failed or malfunctioned, and is it available for inspection upon request? -The entire electrical system failed and the power steering, SRS, and ABS systems malfunctioned. Yes, it’s available for inspection. 2. How was your safety or the safety of others put at risk? -Last night around 9 pm CST we crank the car and started to drive, (no warning light at that time) and all of a sudden the car had a warning message to start the engine or the vehicle would turn off the engine although we were already driving. The car started to show all the lights and the brakes got harder to press while we were driving about 40 miles per hour. We couldn’t stop completely at the traffic light and the SRS light came on in the dashboard. After we got off the main road, the power steering locked up as we were trying to turn into a parking lot to safely park. Even after removing the key, the engine remained on and the headlights. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? -No, a dealer has not confirmed electrical problems for this specific VIN, although there has been a “blanket recall” on the models in this class. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -No, not to my knowledge. 5. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -The battery light turned on around 9 am when I was driving my son to his appointment. Then the light went off. Later on in the day, I was able to drive approximately 30-40 miles before going home. In the evening, when driving to the grocery store, the battery light came back on and went off. After leaving grocery store, this is when the car malfunctioned. The ABS and SRS were prominent during the malfunction.
Jun 10, 2025
ELECTRICAL SYSTEM,SEATS
1 complaint
On 1/17/25, I was on my commute to my office when I noted a very strong and unpleasant odor. Thinking it was from a truck in front of me, I passed the truck, cracked my passenger window and continued the short distance to my office. After work, when I returned to my car, I noted a hole burned through my driver's side leather seat. I didn't make the connection to the odor from that morning until I arrived home and did some online research. It turns out that my front seat warmer had malfunctioned, burning all the way through the leather. This problem is well documented online in various forums in my year, make and model. In some cases I read about, driver's clothing burned. In one case I found, a child was burned. This is also a well documented problem that occurred in earlier models of Mercedes, resulting in a lawsuit and a recall. My car is currently at the dealer for repair of the faulty seat warmer, replacement of the burned foam cushion, and replacement of the leather seat cover. This could have been so much worse had I been earlier in my commute, or on a highway where I could not have pulled over. It seems like this problem should prompt a recall.
Jan 25, 2025
SEATS
1 complaint
On January 01, 2025, I started my wife's car after adding coolant. I just want to warm it up since we did not use it in a couple of days. I activated the heated seat on the driver side where I was seated and was just looking at the dashboard. I felt something on back right side and thought that there was an insect bite. When I turned and look, I discovered a dime size red small flame and smoke on the seat and realized that it is possibly and part of the heated seat heating element that burned through the seat material and burned my sweater a little bit. I turned off the heated seat immediately and shut off the car and made sure the burning stop or was out. I was thankful that this happen while I was just warming out the car and stationary and that it did not happen while my wife was driving the car. This could have produced a dangerous situation, a bigger fire while driving and could have cause an accident. I called the Mercedes Benz service department which was possibly closed but I got a call back the following day and they said that there is no open recall on this vehicle on anything. I ask what is my option and the answer was to get it checked at the service dept. and that it would cost $351.00 just to find out what was wrong with it. I schedule service for Jan 14, 2025 at 3:30 pm. No police or insurance inspection was done. There has been no warning lamp or message to warn me of the problem. Jan 01, 2025 is the first time it happened. I told my wife not to use the heated seat and put a note on the car to inform anyone that will be in the car even though it is just my wife and I that drives the car.
Jan 02, 2025
PARKING BRAKE
1 complaint
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that the parking brake failed to engage as needed. There were no warning lights illuminated. The vehicle was taken to the local dealer for an inspection, and it was determined that the parking brake release had failed to snap upwards. The contact stated that the pedal was releasing slowly. The vehicle was not repaired. The manufacturer was contacted, but no additional assistance was provided. The approximate failure mileage was 58,000.
Oct 31, 2024
SUSPENSION,AIR BAGS,WHEELS
1 complaint
The following are malfunctions that are a high risk when driving: •airbags •ball joints •coolant •control arms •electrical power system It is a risk when driving due to the ball joints and control arms not properly secured. Engine warning light
Jan 03, 2024
ELECTRICAL SYSTEM,ENGINE
1 complaint
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that while driving at various speeds, the vehicle lost motive power and stalled with the check engine and traction control warning lights illuminated. The vehicle was taken to the local dealer who serviced the vehicle however, the failure reoccurred. No further information was available. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 61,000.
Jun 22, 2023
SERVICE BRAKES, AIR,TRACTION CONTROL SYSTEM,ENGINE
1 complaint
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated that the ABS, check engine, and traction control warning lights were illuminated. The vehicle was taken to an independent mechanic, who informed the contact that they could not diagnose the vehicle as the diagnostic link connector was missing from the vehicle. The contact stated that she verified that the diagnostic link connector was not in the location indicated in the Owner’s Manual. The contact stated that the vehicle was purchased used. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 76,200.
Apr 14, 2023
SEAT BELTS
1 complaint
The contact owns a 2014 Mercedes-Benz GLK350. The contact stated while the vehicle was having the yearly inspection, the contact was notified that the second-row seat belt buckle was not releasing as needed. The dealer was contacted and stated that the vehicle needed to be diagnosed. The manufacturer was not contacted. The failure mileage was 60,000.
Jan 18, 2023
POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE
1 complaint
Left side boost tube blown twice on my vehicle. Technical part info: 204-528-00-00, Charge Air Hose Both incidents involved sudden loss of power in the middle of the free way driving. First incident: Christmas Day 2018, on the way to Las Vegas from Grand Canyon visit, on highway 93. Fortunately, no vehicle was behind when I lost the power, moved to right lane and continued driving slowly to reach the hotel in LV (about 50 miles at low speeds). Check engine light came on immediately after loosing the power. Next day morning, visited the local Mercedes dealer to repair the vehicle, it costed me $520.19 This was in the middle of a long road trip from Phoenix to San Fransisco. Second incident: July 29th 2021, right after I picked up the vehicle from a repair shop to repair the rear bumper. Vehicle pick up was slow, no check engine light. Next day morning, on the way to work on I-17, vehicle lost the power while merging onto Freeway. Almost got hit a by trailer truck which was right behind me. Moved back to right lane and slowly drove to work. Check engine light came on after few minutes of driving. Took the vehicle to repair on August 6th to a local dealer. This time they didn't charge me for the repair and said it's covered under warranty. I don't have any warranty. Seems like it's a design issue with turbo charge air hose and/or a faulty part. It's a real safety issue if it blown in the middle of driving.
Aug 13, 2021
SERVICE BRAKES, AIR,AIR BAGS
1 complaint
TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ GLK350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. ALBANY MOTORCARS (805 E OGLETHORPE BLVD, ALBANY, GA 31705; (229) 883-2040) WAS CONTACTED AND IT WAS CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT STATED THAT THE ABS WARNING WAS ILLUMINATED. THE APPROXIMATE FAILURE MILEAGE WAS 30,000. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
Jun 08, 2020
STEERING,AIR BAGS
1 complaint
MERCEDES SERVICE CAMPAIGNS 2019010001 AND 2019080019 MY DEALER (WAGNER MERCEDES OF SHREWSBURY, MA) HAS TOLD ME THAT NO REPLACEMENT PARTS ARE AVAILABLE FOR 2019010001 EVEN AFTER A YEAR OF WAITING. IN ACCORDANCE WITH THE NHTSA WWWEB SITE ("IF THE MANUFACTURER HAS FAILED OR IS UNABLE TO REMEDY THIS SAFETY RECALL FOR YOUR VEHICLE IN A TIMELY MANNER, PLEASE CONTACT THE NHTSA VEHICLE SAFETY HOTLINE AT: 1-888-327-4236 OR TTY: 1-800-424-9153 OR FILE AN ONLINE COMPLAINT WITH NHTSA."), I AM FILING THIS COMPLAINT.
Dec 27, 2019
STEERING,SUSPENSION
1 complaint
WHILE TURNING MY VEHICLE TO THE LEFT OR RIGHT, I HEAR A LOUD SCREECHING NOISE ON THE STREET. I ALSO FEEL AS THOUGH THERE IS A HESITATION WHILE EXCELERARTING ON THE HIGHWAY. THE GLK350 2014 IS ON A C CLASS FRAME WHICH II THINK IS TOO SMALL TO CARRY ALL OF THE WEIGHT OF THE VEHICLE. THIS TYPE OF VEHICLE SHOULD HAVE BEEN ON N ECLASS FRAME.
Dec 25, 2019
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE
1 complaint
BLUE TEC SYSTEM FOR DIESEL FUEL EMISSIONS IN MY 2014 MERCEDES BENZ GLK250 MODEL IS INHERENTLY FLAWED WITH REPEATED FAILURES THAT CAUSE THE CAR TO "GO LIMP" (UNABLE TO START AFTER 10 OR LESS STARTS WHEN THERE IS A FAILURE IN THE BLUE TEC SYSTEM.) AS A RESULT, THE CAR IS NOT ONLY UNRELIABLE, IT IS UNSAFE SHOULD THE CAR "GO LIMP" WHEN NEEDED FOR EMERGENCY OR ON A ROAD TRIP OR UNABLE TO DRIVE OUT OF AN UNSAFE AREA, ETC., SINCE ONLY A MERCEDES BENZ DEALER CAN RE-SET THE SYSTEM AFTER REPAIRS SO THAT THE CAR WILL START AGAIN. TO DATE (5/16/19) MY 2014 GLK250 HAS 28,388 MILES AND HAS BEEN RETURNED TO THE DEALER 6 TIMES (FIRST TIME, DEC. 6, 2014 AND 5 MORE TIMES SINCE) DUE TO THE ELECTRONIC WARNING MESSAGE "10 REMAINING STARTS/ADD BLUE" WHICH HAS ALWAYS TURNED OUT TO BE AN ELECTRONIC FAILURE IN THE BLUE TEC SYSTEM. THE MESSAGE MAY APPEAR WHEN THE CAR IS PARKED AND THE IGNITION IS TURNED ON OR WHILE DRIVING. SOMETIMES, THE CHECK ENGINE LIGHT MAY FIRST APPEAR FOLLOWED BY THE "REMAINING STARTS" MESSAGE A FEW DAYS LATER. THERE IS NO LOGIC OR SET SEQUENCE. AND WHEN IT APPEARS, THERE IS NO ALTERNATIVE BUT TO IMMEDIATELY GO TO THE DEALER FOR REPAIRS AND TO RE-SET THE COMPUTER SO THE COUNT DOWN STOPS AND THE CAR CAN BE STARTED. THE REASON THIS IS NOT A WIDELY KNOWN PROBLEM IS THAT THERE WERE NOT MANY GLK 250 BLUE TEC CARS SOLD IN THE U.S. AND MERCEDES BENZ NO LONGER BUILDS THIS MODEL AND HAS STOPPED OFFERING DIESEL PASSENGER CARS IN THE U.S. FOR MORE INFORMATION ON COMPLAINTS, SEE LINK.: HTTPS://MBWORLD.ORG/FORUMS/GLK-CLASS-X204/517220-2014-GLK250-CONTINUED-ISSUES-BEWARE.HTML NOTE: THE DATE BELOW IS THE START DATE OF THE BLUE TEC PROBLEM FOR MY CAR AND THE MILAGE BELOW WAS FOR THE FIRST TIME THE CAR WAS TAKEN TO THE DEALER TO FIX THE PROBLEM FOLLOWED BY 5 MORE TIMES AFTERWARDS SINCE 12/6/14
May 16, 2019
AIR BAGS,UNKNOWN OR OTHER,SERVICE BRAKES
1 complaint
I WAS TOLD THERE IS AN AIRBAG RECALL. ASKED 1 DEALER LAST WEEK, AND THEY STATED THE PART IS NOT IN. LAST MONTH RECEIVED SEVERAL CALLS FROM DEALER WHERE I PURCHASED VEHICLE THAT A PART WAS IN. EACH TIME I CALLED THEM THEY STATED THEY HAD NO PART. IS THERE A RECALL ON AIRBAGS? IF SO WHO SHOULD I CONTACT TO HAVE THE AIRBAG REPLACED?
Mar 04, 2019
AIR BAGS,SEAT BELTS
1 complaint
A MESSAGE APPEARS WITH SEATBELT AND AIR BAG FRONT LEFT MALFUNCTION SERVICE REQUIRED DEALER SAID THERE IS A SENSOR IN SEATBELT TREGERRING THIS MESSAGE.
Nov 24, 2018
UNKNOWN OR OTHER,VISIBILITY/WIPER
1 complaint
"SPONTANEOUS SUNROOF EXPLOSION" - MY 2013 MERCEDES GLK250 BLUETEC EXPERIENCED A SPONTANEOUS SUNROOF EXPLOSION WHILE DRIVING ON THE HIGHWAY AT HIGHWAY SPEEDS. AN ACCIDENT NEARLY OCCURRED AS A RESULT OF THE GUNSHOT LIKE IMPACT EXPERIENCED INSIDE THE CABIN OF THE VEHICLE AS A RESULT OF THE SUNROOF EXPLOSION. I HAD SEVERAL CHARDS OF GLASS EMBED IN MY SKIN AND IN MY EYE, AS THE EXPLOSION PRODUCED AN ULTRA FINE DUST OF SAFETY GLASS PARTICLES THAT WERE UNAVOIDABLE. NO IMPACT DEBRIS OR FOREIGN OBJECT WAS ATTRIBUTABLE TO THE CAUSE OF THE EXPLOSION, HINTING AT MANUFACTURER DEFECT.
Jul 27, 2016
ENGINE
1 complaint
TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ GLK350. THE CONTACT STATED THAT THE VEHICLE LEAKED AN EXCESSIVE AMOUNT OF OIL ONTO THE ENGINE COMPARTMENT. IN ADDITION, THE CONTACT NOTICED A BURNING OIL SMELL COMING THROUGH THE AIR VENTILATION SYSTEM. FURTHERMORE, THE OIL LIGHT REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO BE REPAIRED, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE FAILURE MILEAGE WAS 14,000. UPDATED 04/14/16*LJ *TR
Mar 02, 2016
ELECTRICAL SYSTEM,AIR BAGS,STRUCTURE
1 complaint
2014 M-B GLK350 WAS TRAVELING ON A SIX LANE ROAD: THREE LANES IN THE NORTH DIRECTION; THREE LANES IN THE SOUTH DIRECTION. GLK350 WAS TRAVELING IN THE NORTH DIRECTION RIGHT LANE AT APPROX. 15 MPH WHEN IT WAS BROADSIDED ON THE DRIVER'S SIDE BY A PICKUP TRUCK WHO WAS COMING FROM THE SOUTH DIRECTION. THE PICKUP TRUCK MADE AN ILLEGAL LEFT HAND TURN AND CROSSED OVER THREE LANES OF TRAVEL IN AN ACCELERATING MODE BEFORE IMPACT WITH THE GLK350. THE PICKUP TRUCK WAS TRAVELING AT LEAST 25 MPH. IMPACT ZONE ON THE GLK350 WAS CENTERED BELOW A-PILLAR IN THE VICINITY OF THE FIREWALL, A VERY WELL REINFORCED AREA. NO AIRBAGS WERE DEPLOYED DURING THIS IMPACT --- ESPECIALLY CURTAIN AND SIDEBODY BAGS. DRIVER WAS INJURED ( CONCUSSION ); PASSENGER WAS INJURED AND DIED ( COMPLICATIONS OF TRAUMATIC BRAIN INJURY - CONCUSSION AS STATED ON DEATH CERTIFICATE ). THIS APPEARS TO BE A MAJOR MALFUNCTION IN THE SAFETY ASPECTS OF HAVING 9 AIRBAGS AS MARKETED BY THIS MANUFACTURER. ADDITIONALLY, M-BRACE TELEMETRICS SYSTEM DID NOT AUTOMATICALLY ENGAGE WITH THIS HARD IMPACT ASKING US IF WE NEEDED ASSISTANCE OR TO SUMMONS A POLICE OFFICER.... NOTHING !..UPDATED 10/28/14 *BF *TR
Oct 20, 2014
Frequently Asked Questions
How many problems does the 2014 MERCEDES-BENZ GLK-Class have?
The 2014 MERCEDES-BENZ GLK-Class currently has 123 owner-reported complaints according to NHTSA database. These complaints are organized by component to help identify common issues.
What are the most common problems with 2014 MERCEDES-BENZ GLK-Class?
The most common problems reported for the 2014 MERCEDES-BENZ GLK-Class are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.
Where does this 2014 MERCEDES-BENZ GLK-Class problem data come from?
All problem and complaint data for the 2014 MERCEDES-BENZ GLK-Class comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.
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