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BrakesPart report

2020 Mercedes-Benz C300 Brakes Problems

Complaints
1about this part
Share
3%of 33 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 2020 Mercedes-Benz C300, 3% of the 33 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.

“points: ⸻ While driving, the vehicle displays the warning “Active Brake Assist Functions Limited – See Operator’s Manual.” The message appears during normal driving and does not go away. This warning indicates that the automatic emergency braking / Active Brake Assist system is limited or disabled, reducing a critical safety feature designed to help prevent or mitigate collisions. This creates a safety risk because the vehicle may not automatically brake in an emergency situation. …”

NHTSA complaint #11710171, filed 2026-01

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
2024327%
2023523%
202228%
202013%
201969%
201822%
201721%
201693%
201592%
201422%
2013166%
2012156%
2011133%
201072%
2009214%
2008173%

Other parts of the 2020 Mercedes-Benz C300

Engine
8 complaints
Other or unknown
5 complaints
Body and structure
4 complaints
Electrical system
3 complaints
Forward collision avoidance
3 complaints
Fuel system
3 complaints
Transmission and drivetrain
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Air bags
2 complaints
Back-over prevention (rear camera)
2 complaints
Latches, locks and linkages
2 complaints
Steering
2 complaints

← All problems reported for the 2020 Mercedes-Benz C300

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