2015 MERCEDES-BENZ SLK-Class Problems

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Complaints Reported

Complaints by Component

FUEL/PROPULSION SYSTEM

1 complaint

I am submitting this complaint to report a serious high‑pressure fuel system failure on my 2015 Mercedes‑Benz SLK 250 equipped with the M274 2.0L turbocharged engine, which resulted in a sudden and dangerous loss of propulsion. While accelerating to pass another vehicle at roadway speed, the engine abruptly lost power, stalled, and the vehicle immediately entered limp mode, leaving me exposed to active traffic with no warning and unable to complete the maneuver safely. The incident triggered diagnostic fault code P000277, consistent with a fuel pressure or fuel control system malfunction. This failure created an immediate safety hazard, as loss of engine power during acceleration significantly increases the risk of rear‑end or side‑impact collisions. Of particular concern is that Mercedes‑Benz has previously acknowledged fuel system safety defects in the same M274 engine family, as documented in NHTSA Safety Recall Campaign No. 18V‑837, which addressed known vulnerabilities in the fuel delivery system that could lead to engine malfunction. Although my specific vehicle may not have been included in that recall, the symptoms and failure mode I experienced are consistent with those known fuel system issues. A sudden and complete loss of engine power during normal driving conditions represents an unreasonable risk to motor vehicle safety. I respectfully urge NHTSA to investigate this failure pattern to determine whether additional vehicles using this engine platform are affected and to take appropriate action to prevent injuries or fatalities. Can you please give me a document so I can go to Mercedes and get this fixed? this first happened in June 2024 and I am since clearing the code myself and I just found out this problem.

Apr 13, 2026

SERVICE BRAKES

1 complaint

THIS IS THE PROBLEM I AM HAVING WITH MY VEHICLE: Nature of the Problem: The recall involves the ESC system software, which may incorrectly keep the brakes slightly applied. This can cause the brake components to heat up over time, potentially affecting braking performance and increasing the risk of a crash. Additionally, the dragging brakes may overheat, raising the risk of a fire. Recall Initiation: The recall began on June 9, 2017. Mercedes-Benz USA, LLC (MBUSA) is responsible for notifying owners and will update the ESC system software free of charge. I GOT THIS INFORMATION WHEN I DID A SEARCH FOR MY PARTICULAR PROBLEM. WHEN THIS HAPPENS, MY BRAKES GO "SOFT" AND I HAVE TO PUSH THE BRAKE PEDAL WAY DOWN TO STOP THE CAR. ALSO, THEY HEAT UP AND SOMETIMES SMOKE. THIS HAPPENS ONCE IN A WHILE NOT ALL THE TIME. THE LAST TIME WAS YESTERDAY 10/09/2025 I CALLED MERCEDES AND THEY TOLD ME MY VEHICLE WAS NOT INCLUDED ON THE RECALL FOR SOME REASON. THEY TOLD ME TO REPORT THE PROBLEM HERE AND HAVE MY VEHICLE ADDED TO THE RECALL. THANK YOU

Nov 10, 2025

UNKNOWN OR OTHER

1 complaint

Good afternoon, My GPS just shut down. i've never had a car do this! Its a Becker by Harman [XXX] Modelno. : Becker Map Pilot P/N 2710171 EC:104 Assembly date 2025 Type BMP M077 A 166 900 58 15 ZGS(ZB)001 A 172 901 48 04 zgs(HW)001 A 166 902 10 07 ZGS(SW)001 Can it be replaced? my dealership said they went out of business and can't be replaced? thank you [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Jun 06, 2024

STRUCTURE

1 complaint

The roof panel on my car separated from the body of the vehicle during normal highway driving. This failure is similar to recent prior recalls on other Mercedes Benz models where, due to failed glue bonding, sliding panels on those models detached from vehicles during driving conditions. At least one news article described those component failures as being due to a "defect." In my case, the entire roof panel separated from and blew off the car. The loss of a roof from the body of a car during driving conditions creates obvious safety issues for the occupants of the vehicle and for those in other vehicles or otherwise using the road. I have regularly maintained my car at a certified Mercedes Benz dealer and this potential issue was never raised or identified to me.

Jan 05, 2023

4.5/5.0

80 reviews

MERCEDES-BENZ SLK-Class VIN Decoder — Free VIN Check Video Guide

Watch our quick MERCEDES-BENZ SLK-Class VIN decoder walkthrough. Learn how to decode any MERCEDES-BENZ SLK-Class VIN number to get full vehicle history, recall alerts, specifications, fuel economy (MPG), safety ratings, and known problems — completely free on ForCar.org.

Where to Find VIN for Problems Check

To check for problems and complaints on your 2015 MERCEDES-BENZ SLK-Class, you'll need the VIN number. Find your VIN in one of these 4 common locations.

Where to Find VIN Number on 2015 MERCEDES-BENZ SLK-Class for Problems Lookup - Dashboard, Door Jamb, Engine Bay, Documents

Understanding VIN Structure for Problem Reports

Each character in your 2015 MERCEDES-BENZ SLK-Class 17-digit VIN helps identify specific complaints and problems affecting your vehicle model.

2015 MERCEDES-BENZ SLK-Class VIN Structure for Complaint Verification - WMI, VDS, Check Digit, Model Year, Plant Code

How to Check 2015 MERCEDES-BENZ SLK-Class Problems in 3 Steps

Locate Your VIN

Find the 17-character VIN on your 2015 MERCEDES-BENZ SLK-Class dashboard (visible through windshield), door jamb, engine bay, or vehicle documents.

Review by Component

Browse owner-reported complaints organized by vehicle component (engine, transmission, brakes, electrical) to identify common issues and problem patterns for this model year.

Check Safety Issues

Review crash and fire incidents for each component to assess safety concerns. Contact your MERCEDES-BENZ dealer or report problems to NHTSA at SaferCar.gov.

Frequently Asked Questions

How many problems does the 2015 MERCEDES-BENZ SLK-Class have?

The 2015 MERCEDES-BENZ SLK-Class currently has 4 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 2015 MERCEDES-BENZ SLK-Class?

The most common problems reported for the 2015 MERCEDES-BENZ SLK-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 2015 MERCEDES-BENZ SLK-Class problem data come from?

All problem and complaint data for the 2015 MERCEDES-BENZ SLK-Class comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.

How do I report problems with my 2015 MERCEDES-BENZ SLK-Class?

You can report safety problems with your 2015 MERCEDES-BENZ SLK-Class directly to NHTSA at SaferCar.gov or call 1-888-327-4236. Your complaint helps identify patterns and may lead to recalls or investigations.

Where can I find my VIN to check problems?

Your 2015 MERCEDES-BENZ SLK-Class VIN is located in 4 places: (1) Dashboard near windshield on driver's side, (2) Driver's door jamb sticker, (3) Engine bay, (4) Vehicle registration and insurance documents.

Is the 2015 MERCEDES-BENZ SLK-Class reliable?

Reliability can be assessed by reviewing the number and severity of owner complaints for the 2015 MERCEDES-BENZ SLK-Class. Check complaints by component, crash reports, and fire incidents above to evaluate potential issues and problem patterns.