AI Damage2014 Mercedes-Benz AMG GL63: common problems
Owners of the 2014 Mercedes-Benz AMG GL63 filed 3 complaints with NHTSA, most often about service brakes and engine. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- 1 Service brakes 67% of all complaints
- 2 Engine 33% of all complaints
- 3 Steering 33% of all complaints
- Service brakes: 2 complaints (67% of all).
- Engine: 1 complaints (33% of all).
- Steering: 1 complaints (33% of all).
Symptoms owners describe
How many of the 3 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) |
|---|---|---|---|
| Service brakes | 2 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Steering | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Corrosion was found where composite insulator covers crossover tube that allowed weakening of pipe and subsequent loss of braking action. Leak was substantial enough that both channels of master cylinder were deprived of fluid, total loss of brakes, vehicle required towing.
The power steering wheel is stuck at the top position once in a while. 2. Active curve system pump will fail and leak fluids [ZIP]-40000 miles.
Contributing factors include (1) mercedes brakes are known to wear very quickly (roughly annual brake pad change); (2) the 2014 model adaptive cruise system tends to apply the brakes very often, I.e. Unintelligent algorithm that uses brakes continually while cruising at [address], not something a human would ever do
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 17,152 of 36,659 model years in the NHTSA data (top 47% most complained about).
On average one model year of the AMG GL63 has 2 complaints (4 years in the data). This year has 3, above average.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Other years of this model
Questions and answers
What are the most common problems with the 2014 Mercedes-Benz AMG GL63?
Owner complaints to NHTSA most often mention: service brakes, engine, steering. Total complaints: 3. The most frequent symptoms in complaint texts: driver assists: adaptive cruise, lane keeping (33%), brake failure (33%), rust, corrosion (33%).
How many service bulletins (TSB) were issued for the 2014 Mercedes-Benz AMG GL63?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2014 Mercedes-Benz AMG GL63 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2014 models
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.