2017 MERCEDES-BENZ SLC-Class Problems

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Complaints Reported

Complaints by Component

STRUCTURE

1 complaint

The contact owns a 2017 Mercedes-Benz SLC300. The contact stated that while driving at an undisclosed speed, there was a loud whistling sound coming from the upper panel of the roof. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the bonding of the upper roof panel had failed and required to be replaced. The vehicle was not repaired, and the contact was referred to the dealer for additional assistance. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for further assistance. The failure mileage was not available.

Jan 09, 2026

UNKNOWN OR OTHER

1 complaint

On September 6, 2025 while driving approximately 70 mph, the front roof panel of my vehicle detached completely. This was not only a costly failure, but also an extremely dangerous incident that could easily have caused severe injuries or fatalities — either to myself, my passengers, or other motorists on the roadway. As you are aware, Mercedes-Benz has already acknowledged this precise risk through NHTSA Recall No. 21V197000 / Campaign 2021070010, later expanded under NHTSA Recall 23V854000. These documents confirm that the bonding adhesive used on the front roof panel can deteriorate, leading to detachment. Mercedes has therefore had prior knowledge of this defect and its associated safety hazards. Given that my vehicle has now experienced the exact failure described in these recalls, it is wholly unreasonable for Mercedes-Benz to deny responsibility. This was not normal wear and tear; it was a known, documented safety defect that could have resulted in catastrophic consequences.

Oct 09, 2025

ENGINE

1 complaint

Piston 1 broken at 76000 miles. Compleat engine failer

May 15, 2024

ELECTRICAL SYSTEM,COMMUNICATION

1 complaint

TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ SLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD, BLUFFTON, SC 29910) WHERE THE CONTACT WAS INFORMED THAT THE UPDATE WAS NOT YET AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND CONFIRMED THE INFORMATION PROVIDED BY THE DEALER. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

May 10, 2021

4.2/5.0

101 reviews

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

Watch our quick MERCEDES-BENZ SLC-Class VIN decoder walkthrough. Learn how to decode any MERCEDES-BENZ SLC-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 2017 MERCEDES-BENZ SLC-Class, you'll need the VIN number. Find your VIN in one of these 4 common locations.

Where to Find VIN Number on 2017 MERCEDES-BENZ SLC-Class for Problems Lookup - Dashboard, Door Jamb, Engine Bay, Documents

Understanding VIN Structure for Problem Reports

Each character in your 2017 MERCEDES-BENZ SLC-Class 17-digit VIN helps identify specific complaints and problems affecting your vehicle model.

2017 MERCEDES-BENZ SLC-Class VIN Structure for Complaint Verification - WMI, VDS, Check Digit, Model Year, Plant Code

How to Check 2017 MERCEDES-BENZ SLC-Class Problems in 3 Steps

Locate Your VIN

Find the 17-character VIN on your 2017 MERCEDES-BENZ SLC-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 2017 MERCEDES-BENZ SLC-Class have?

The 2017 MERCEDES-BENZ SLC-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 2017 MERCEDES-BENZ SLC-Class?

The most common problems reported for the 2017 MERCEDES-BENZ SLC-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 2017 MERCEDES-BENZ SLC-Class problem data come from?

All problem and complaint data for the 2017 MERCEDES-BENZ SLC-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 2017 MERCEDES-BENZ SLC-Class?

You can report safety problems with your 2017 MERCEDES-BENZ SLC-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 2017 MERCEDES-BENZ SLC-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 2017 MERCEDES-BENZ SLC-Class reliable?

Reliability can be assessed by reviewing the number and severity of owner complaints for the 2017 MERCEDES-BENZ SLC-Class. Check complaints by component, crash reports, and fire incidents above to evaluate potential issues and problem patterns.