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BrakesPart report

2018 Mercedes-Benz S 450 Brakes Problems

Complaints
2about this part
Share
29%of 7 total for the year
Median mileage
40,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the brakes of the 2018 Mercedes-Benz S 450, 29% of the 7 complaints for this model year. Where a mileage was given, the median is 40,000 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.

“I’m reporting this safety concern and seeking advisement from those more knowledgeable than myself on this issue. Recently, as I attempted to actuate the brake of my vehicle. My right foot was entangled with the brake pedal as I moved it from the acceleration pedal to the brake pedal in observance of a “Stop Sign.” I barely avoided what surely would have been a catastrophic collision with another vehicle. The incident occurred in a split second. The shoe of my right foot was entangled with the lower right corner of the underside of the brake pedal, which has a protruding sharp thin metal edge. …”

NHTSA complaint #11509192, filed 2023-02

“The contact owns a 2018 Mercedes-Benz S450. The contact stated while driving at an undisclosed speed, the contact attempted to depress the brake; however, the vehicle failed to decelerate and slow as needed. The contact stated that the brakes failed to work as needed. The contact stated that the “Service Required” message was displayed on the instrument panel. The vehicle was taken to a dealer and was diagnosed with electronic parking brake failure. The manufacture was not notified of the failure. The failure mileage was approximately 40,000.”

NHTSA complaint #11509829, filed 2023-03, 40,000 miles

Related recalls

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
2018229%

Other parts of the 2018 Mercedes-Benz S 450

Forward collision avoidance
2 complaints
Other or unknown
1 complaints
Seat belts
1 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2018 Mercedes-Benz S 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