2021 Mercedes-Benz GLB 250 Brakes Problems
- Complaints
- 1about this part
- Share
- 3%of 29 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the brakes of the 2021 Mercedes-Benz GLB 250, 3% of the 29 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 purchased this vehicle in May 28 2025. I certified car. I took in for oil change Nov 17-2025. Found out they had lot of issues., left front bushing arm leaking. Rt engine mount leaking. Bad brakes battery low. Bad tire rt back passage side.front wheel axle and rear wheel axle is bad and screw on the engine mount is missing. Screw and leaking..?and the vehicle needed a alignment.”
NHTSA complaint #11708509, filed 2026-01Related 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…
- 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…
- 11014412Feb 3, 2025Complaint Noises/ squealing from the service brake in various driving situations and ambient conditions. Cause Frictional vibrations Remedy AMG brake systems are designed for…
- 11005334Jul 15, 2024Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane…
- 10233782Mar 2, 2023Complaint Squeaking noises from the front axle brakes when operating the brakes. The noise occurs regardless of the temperature. Cause The noise occurs due to friction between…
Brakes: other model years
Other parts of the 2021 Mercedes-Benz GLB 250
10 complaintsEngine
7 complaintsElectrical system
4 complaintsSuspension
4 complaintsBody and structure
3 complaintsTransmission and drivetrain
3 complaintsBack-over prevention (rear camera)
2 complaintsFuel system
2 complaintsSteering
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsWheels
2 complaintsAir bags
1 complaints
← All problems reported for the 2021 Mercedes-Benz GLB 250
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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