2025 Mercedes-Benz GLS 450 4MATIC Brakes Problems
- Complaints
- 2about this part
- Share
- 29%of 7 total for the year
- Median mileage
- —not reported
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 2 complaints about the brakes of the 2025 Mercedes-Benz GLS 450 4MATIC, 29% of the 7 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I am writing to file a formal complaint regarding a serious malfunction of the Automatic Emergency Braking (AEB) system. This malfunction caused my vehicle to unexpectedly perform an emergency stop without a valid cause, resulting in significant damage to its suspension system. Incident Details: •Date of Incident: Friday, December 5, 2025, between 10:45 am and 11:15 am ET •Location: Community Baptist Church of Englewood, 224 1St, Englewood, New Jersey. …”
NHTSA complaint #11703696, filed 2025-12“Brake pads completely worn after 11K miles - this seems like premature wear and like there is a potential issue with the braking system on the GLS450.”
NHTSA complaint #11740240, filed 2026-05Related service bulletins
- 11038186Sep 22, 2026Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily…
- 11037485Sep 1, 2026Complaint When coming to a stop or at slow speeds, brakes produce light squealing noise. Cause Optimized brake pads may produce some noise and is normal at low speeds and light…
- 11034983Jul 3, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
- 11033109May 30, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
- 11031559Apr 25, 2026Complaint When coming to a stop or at slow speeds, brakes produce light squealing noise. Cause Optimized brake pads may produce some noise. Remedy NOTE: Exchanging brake discs…
- 11029926Mar 3, 2026Complaint When coming to a stop or at slow speeds, brakes produce light squealing noise. Cause Optimized brake pads may produce some noise. Remedy If the brake pads have not been…
- 11029086Feb 26, 2026Complaint When coming to a stop or at slow speeds, brakes produce light squealing noise. Cause Optimized brake pads may produce some noise. Remedy If the brake pads have not been…
- 11024405Oct 20, 2025Complaint At low speeds and light brake pressure, brakes will make a groaning or honking noise. Cause Frictional vibrations with very light brake pressure/modulations. Remedy…
Brakes: other model years
Other parts of the 2025 Mercedes-Benz GLS 450 4MATIC
2 complaintsEngine
1 complaintsEngine cooling
1 complaintsForward collision avoidance
1 complaintsLane departure
1 complaintsSeat belts
1 complaintsSteering
1 complaintsBody and structure
1 complaintsSuspension
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2025 Mercedes-Benz GLS 450 4MATIC
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology