2017 Mercedes-Benz AMG C43 problems & reliability
23 owner complaints filed with NHTSA for the 2017 Mercedes-Benz AMG C43, alongside 10 safety recall campaigns. Last verified Sep 22, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several components.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Seat Belts | 5 | 22% |
| Wheels | 5 | 22% |
| Air Bags | 2 | 9% |
| Engine | 2 | 9% |
| Power Train | 2 | 9% |
| Seats | 2 | 9% |
| Service Brakes | 2 | 9% |
| Structure | 2 | 9% |
| Tires | 2 | 9% |
| Electrical System | 1 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
All 15 reported components →Complaints by incident year
What owners report
“The contact owns a 2017 Mercedes-Benz AMG C43. The contact stated that the front driver’s side seat belt failed to retract as intended. No warning light was illuminated. The vehicle was taken to a local dealer for diagnosis but was not repaired due to the cost. Upon further investigation, the contact related the…”
Seat Belts · filed Aug 9, 2024
“Both front seat belts on the driver and passenger side fail to retract. Looking up my car model I found the following: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2021 C300, 2017-2020 AMG C43, and AMG C63 vehicles. The front seat belts might not fully retract to their stowed position. As such, these…”
Seat Belts · filed May 9, 2023
“The contact owns a 2017 Mercedes-Benz AMG C43. The contact stated that after the dealer performed an unknown recall repair and Honda of Newnan (391 Newnan Crossing Bypass, Newnan, GA 30265) replaced the ball joints and axles, the contact noticed that the roof panel had detached, causing the front panel to loosen, and…”
Seat Belts · filed Apr 7, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Desiccated Air Bag Inflator Rupture
Engineering Analysis EA21002 · opened Sep 17, 2021 · open
Technical service bulletins
138 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2017 Mercedes-Benz AMG C43. The 10 most recent:
Complaint During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time. OR Rattling, humming, dry sliding/gravel noise from the electric steering system when steering…
LI46.35-P-067339 · Service Bulletin/Repair Instructions · issued Aug 28, 2026
Complaint • Harsh 1‑2, 2‑3, and/or 3‑4 shift • Jerky shifting • Jolting when accelerating from stop Cause Insufficient software application causing elevated K81/K27/B05 fill time adaptations and elevated torque…
LI27.60-P-076554 · Service Bulletin/Repair Instructions · issued Aug 26, 2026
Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket, handbag etc. Remedy As of the 6th…
LI72.20-P-075746 · Service Bulletin/Repair Instructions · issued Aug 24, 2026
Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. Cameras 6. Other Park Topics. Cause…
LI54.65-P-080132 · Service Bulletin/Repair Instructions · issued Aug 12, 2026
Complaint A popup is seen on the HU with the message "data connection temporarily not available". Potentially affected functionalities in NTG4.5, NTG5 1.Weather 2.Local Search 3.IP Radio 4.Send2Car 5.Speech Detection…
LI82.85-P-079087 · Service Bulletin/Repair Instructions · issued Aug 6, 2026
Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim…
LI82.62-P-078631 · Service Bulletin/Repair Instructions · issued Aug 6, 2026
Complaint This document is intended as a pre-case diagnostic reference for transmission related concerns. It will also ensure that if a case is necessary, all supporting documentation is available. This should not be…
LI27.00-P-075630 · Service Bulletin/Repair Instructions · issued Aug 5, 2026
Complaint Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L (PNs: A002989060312 and A002989060313)…
LI27.00-P-080840 · Service Bulletin/Repair Instructions · issued Aug 4, 2026
Complaint Crackling and cracking noise from the outer wheel on the front axle when cornering Cause The noise is generated by a micromovement on the contact surface between the rim and the brake disk (wheel bolt group)…
LI40.10-P-059248 · Service Bulletin/Repair Instructions · issued Jul 21, 2026
Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause…
LI35.30-P-058566 · Service Bulletin/Repair Instructions · issued Jul 14, 2026
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2017 Mercedes-Benz AMG C43 has 10 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2017 Mercedes-Benz AMG C43?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.