Both driver and passenger seatbelts do not fully retract and remain loose. Must be manually guided back into mechanism. I see that there has been a recall for the cabriolet version of this vehicle platform but not for the coupe version. I am unsure why there hasn't also been a recall for the coupe C205 as it is the same platform and having the same exact issue. I have read on forums that there are also other drivers of the coupe platform that also have the same issue with the seatbelts not retracting so this appears to be a common issue with the vehicles safety devices.
The worst 2021 Mercedes-Benz AMG C63S problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Seat belts1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Seat belts1
Recalls 4
Fuel system, gasoline: delivery: fuel pump
- What is wrong
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 C-Class, E-Class, S-Class, CLS, SL, GT, GLC, GLE, GLS, and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle details. The fuel pump may shutdown, which can result in a loss of drive power.
- Risk
- A loss of drive power can increase the risk of a crash.
- Remedy
- Dealers will replace the fuel pump, free of charge. Owner notification letters were mailed on June 14, 2024. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's number for this recall is 2023070012.
Recall number 23V445000 · Recall details
Back over prevention: display function
- What is wrong
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018-2021 CLA-Class, GLE/GLS-Class, A-Class, C-Class, E-Class, E-Class Coupe/Convertible, GLA/GLB-Class, GLC-Class, and CLS-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The rearview camera may not display the rearview image due to a software error. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
- Risk
- An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
- Remedy
- Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 15, 2022. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's number for this recall is 2022060007.
Recall number 22V232000 · Recall details
Seats: mid/rear assembly: head restraint
- What is wrong
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C300 Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63 AMG S Cabriolet, E450 Cabriolet, and E53 AMG Cabriolet vehicles. The rear headrests may be incorrectly mounted to the seatbacks.
- Risk
- Incorrectly mounted headrests could move or detach from the seat during a crash, increasing the risk of injury.
- Remedy
- Dealers will inspect the rear seatback guide bushings and replace them if necessary, free of charge. Owner notification letters were mailed July 16, 2021. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's number for this recall is 2021060010.
Recall number 21V406000 · Recall details
Seat belts: pretensioner
- What is wrong
- Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C-Class, E-Class, E-Class Coupe and Convertible, GLC, CLS, AMG GT 4-door Coupe and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. A faulty electrical contact within the seat position switch may prevent the driver and passenger air bags and seat belt force limiters from properly activating during a crash.
- Risk
- Air bags and seat belts that do not perform properly in a crash can increase the risk of injury.
- Remedy
- MBUSA will notify owners, and dealers will replace the seat position switches, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at 1‑800‑367‑6372. MBUSA's number for this recall is 2021040016.
Recall number 21V230000 · Recall details
Technical service bulletins for the 2021 Mercedes-Benz AMG C63S 167
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Dear Mercedes-Benz Owner: In our continuing efforts to ensure the proper performance of Mercedes-Benz...
- Fuel/propulsion system
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the...
- Engine
- Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is...
- Only vehicles with a variable transfer case are affected
- Clanking noise from the area of the speakers in the doors
- Noises/ squealing from the service brake in various driving situations and ambient conditions
- During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time
- Tailgate opens unintentionally
What 2021 Mercedes-Benz AMG C63S owners say
Most recent owner complaints, unedited.
Compare the 2021 Mercedes-Benz AMG C63S
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Questions about the 2021 Mercedes-Benz AMG C63S
Is the 2021 Mercedes-Benz AMG C63S reliable?
Owners have filed 1 complaint about the 2021 Mercedes-Benz AMG C63S, close to a typical AMG C63S model year.
What is the most common problem with the 2021 Mercedes-Benz AMG C63S?
Seat belts, with 1 complaint.
How many recalls does the 2021 Mercedes-Benz AMG C63S have?
4 recalls, covering fuel system, gasoline, back over prevention and seats.
Was there a recall on the 2021 Mercedes-Benz AMG C63S seat belts?
Yes, 1 recall: 21V230000. Check your VIN to see if your car still needs the free repair.
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