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BrakesPart report

2018 Mercedes-Benz GLS 550 Brakes Problems

Complaints
1about this part
Share
17%of 6 total for the year
Median mileage
4,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the brakes of the 2018 Mercedes-Benz GLS 550, 17% of the 6 complaints for this model year. Where a mileage was given, the median is 4,500 miles. 1 recall campaign on record is filed under a similar system.

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.

“The contact owns a 2018 Mercedes Benz GLS550. The contact stated that when the brake pedal was depressed there was an abnormal noise detected. The brake warning indicator light was illuminated. The contact stated that the brake pad on one side of the disc was completely worn, and the other side of the disc was like new with a full thick pad. The vehicle was taken to the local dealer and the contact was informed that the brake rotor needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure however, no further assistance was provided. …”

NHTSA complaint #11429716, filed 2021-08, 4,500 miles

Related recalls

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
2018117%

Other parts of the 2018 Mercedes-Benz GLS 550

Other or unknown
2 complaints
Electrical system
1 complaints
Seat belts
1 complaints
Suspension
1 complaints
Transmission and drivetrain
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2018 Mercedes-Benz GLS 550

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