AI DamageMercedes-Benz AMG G63: problems, complaints, bulletins
Summary for the Mercedes-Benz AMG G63 across 11 model years: 16 owner complaints and 205 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Fuel/propulsion system 25% of all complaints
- 2 Engine 19% of all complaints
- 3 Forward collision avoidance 13% of all complaints
- 4 Electrical system 6% of all complaints
- 5 Powertrain 6% of all complaints
- 6 Backover prevention 6% of all complaints
- 7 Visibility 6% of all complaints
- 8 Fuel system 6% of all complaints
- Fuel/propulsion system: 4 complaints (25% of all); manufacturer bulletins for this component: 21.
- Engine: 3 complaints (19% of all); manufacturer bulletins for this component: 145.
- Forward collision avoidance: 2 complaints (13% of all); manufacturer bulletins for this component: 37.
- Electrical system: 1 complaints (6% of all); manufacturer bulletins for this component: 389.
- Powertrain: 1 complaints (6% of all); manufacturer bulletins for this component: 154.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 4 L · petrol · turbo · 8 cyl 2019–2024
- 5.5 L · petrol · turbo · 8 cyl 2016–2018
- 4 L · hybrid · turbo · 8 cyl 2025–2027
- automatic, 7-speed 2016–2018
- automatic, 9-speed 2019–2027
Drive: 4WD
Symptoms owners describe
How many of the 16 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Fuel/propulsion system | 4 | 0 | 21 |
| Engine | 3 | 0 | 145 |
| Forward collision avoidance | 2 | 0 | 37 |
| Electrical system | 1 | 0 | 389 |
| Powertrain | 1 | 0 | 154 |
| Backover prevention | 1 | 0 | 61 |
| Visibility | 1 | 0 | 47 |
| Fuel system | 1 | 0 | 18 |
| Lane departure | 1 | 0 | 9 |
| Seat belts | 1 | 0 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
| Service brakes | 0 | 0 | 123 |
| Structure | 0 | 0 | 118 |
| Exterior lighting | 0 | 0 | 68 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
While driving on a California freeway at highway speed, the vehicle unexpectedly decelerated and the seatbelts tightened as though a collision avoidance or emergency safety system had activated. There was no apparent vehicle, obstacle, or roadway hazard present that would explain the event.
3500 miles will suddenly enter into collision avoidance mode. Specifically, the seatbelts will tighten up and the brakes will fully engage to stop the vehicle. In all cases, there was no risk of collision and the system engages with false positive alerts.
Kept going in for repairs for the same concerns - nothing was found â- now its a recall on the 2022 model for the same issue that my 2021 model has â- Malfunction in the front/ rear differential lock system malfunction.
Mercedes refuses to come up with a solution. I have been dealing with this for 8 months now. I asked that they buy the car back since it is a safety concern. I do not feel safe driving it. yet i have to keep paying for the car that sits there?
The cluster showed âsee manualâ , a red exclamation âï¸and all the warning lights were illuminated. I had to bring the vehicle to a complete stop in traffic, set it back in Park and had to press the start button 2-3 times before the engine came Back on and quickly shift back in to Drive because I was blocking…
The contact received notification of NHTSA Campaign Number: 23V880000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Forward collision avoidance. Radar and camera: calibration after bumper or windshield replacement.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Clanking noise from the area of the speakers in the doors
- Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE
- Complaint Noises in the steering column area when steering. See example file in the attachments area
- Complaint Only vehicles with a variable transfer case are affected
- Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions
- Cause Internal failure of the scroll wheel within the AC compressor
- Complaint Consistently reproducible erroneous parktronic warnings from front with every key cycle
- Complaint Oil leaks found on M176 or M177 engines diagnosed to be from the cylinder head cover area Cause…
- Complaint A popup is seen on the HU with the message "data connection temporarily not available"
- Complaint 1
- Complaint Clanking noise from the area of the speakers in the doors
- Complaint This document is intended as a pre-case diagnostic reference for transmission related concerns
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.