2018 Mercedes-Benz GLS 450 Brakes Problems
- Complaints
- 3about this part
- Share
- 21%of 14 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the brakes of the 2018 Mercedes-Benz GLS 450, 21% of the 14 complaints for this model year. 1 of these say a crash was involved and 1 a fire, according to the filers. 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.
“I was already 90% in parking line which is handicap's. About to stop right front of handicap sign, suddenly vehicle start moving forward while my foot was in brake so I push little hard to complete stop but vehicle suddenly accelerate forward smashing into the building glass entry wall and door. I am so certain that my foot was in brake. I want to know that is there any way someone call or visit where body shop to inspect the vehicle so I can ask manufacture to replace my vehicle.”
NHTSA complaint #11353649, filed 2020-09“January 2023 - Airbag suspension failed. Replaced by Mercedes dealership. December 2024 - Airbag suspension failed. Replaced by Mercedes dealership. April 2024: First brake failure. The brakes stopped while driving. Repaired. April 2025: Second brake failure. Brakes failed again. Repaired. The mechanic stated the line was too close to the wheelbase, resulting in a pinpoint-sized hole. No warning lights. July 2025: Engine failure - the vehicle experienced a complete shutdown while driving with no warning lights. …”
NHTSA complaint #11703281, filed 2025-12Related recalls
- 18V539000Aug 16, 2018Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz GLE350 4Matic, GLE350, GLS450 4Matic, GLS550 4matic, GLE43 AMG 4Matic, GLE63 AMG…Covers: Mercedes-Benz GLS 450 2018, GLS 550 2018, GLE 350 2018 +4 more
Related 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…
- 10167785Oct 14, 2019G-Class Facelift 2018: Fault message "ABS, ESP inoperative, see operator's manual"
Brakes: other model years
Other parts of the 2018 Mercedes-Benz GLS 450
3 complaintsElectrical system
2 complaintsEngine
2 complaintsBody and structure
2 complaintsElectronic stability control
1 complaintsExterior lighting
1 complaintsForward collision avoidance
1 complaintsFuel system
1 complaintsOther or unknown
1 complaintsSeats
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2018 Mercedes-Benz GLS 450
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