2009 Mercedes-Benz C300 Brakes Problems
- Complaints
- 21about this part
- Share
- 4%of 576 total for the year
- Median mileage
- 53,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 21 complaints about the brakes of the 2009 Mercedes-Benz C300, 4% of the 576 complaints for this model year. Where a mileage was given, the median is 53,000 miles. 2 of these say a crash was involved, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Warning indicator came up on instrument panel to check rear tail and brake lamps the rear tail, turn, and brake lamps have failed in my car. The wiring harness has burned and emits excessive heat to the touch. I'm unsure of how long I was driving with my taillights out.”
NHTSA complaint #10558498, filed 2014-01, 50,000 miles“Fourth occurrence of all right rear indicator lights going out all together in the past 2-3 months. Just did some research and it appears NHTSA is investigating this. I am taking this in to the dealer tomorrow however, several owners of the 2009 c class are complaining of the same problem due to a bad connection to the rear light unit which is causing shortages and fires. It is very evident that my vehicle has the same issue.”
NHTSA complaint #10548646, filed 2013-10, 58,300 miles“At 5:00pm, I was driving the mercedes benz C300, year 2009, 9010 miles in the parking lot of ymca in la canada, ca at 3 miles/hr. I prepared to stop the car and stepped on the brake, suddenly, the engine rev up and accelerated. The car jumped over the stop bumper but I pressed very hard on the brake and finally the car stopped and the engine was off. The front of the car was about 2 feet from the wall at the parking lot. I was so scared because it was the first time I experienced the unintended acceleration. …”
NHTSA complaint #10331807, filed 2010-05, 9,010 miles“On 8/8/2013 my information display indicated my right taillight, blinker and brake lights were out. When I opened the compartment to see what type of bulbs to replace I found the problem to be much bigger than expected. The plastic housing that hold the wiring pin, the wiring pin and the brown ground wire were all burnt up causing the lights to fail. I than opened the left tail light compartment and the same thing is happening, there is already signs of the housing burning. I remember smelling something burning in the car a few weeks ago. I now know what it was. …”
NHTSA complaint #10534430, filed 2013-08, 53,000 miles“I was driving on the parkway at ~40 MPH and attempted to slow down by stepping on the brake. The car did not slow down but accelerated. And struck the car in front of me. Every time I pressed on the brake, the car accelerated so that the car struck the car in front twice. I tried to turn off the ignition and was unable to. Finally, I pushed hard on the brake enough to slow it down and I was ten able to put the car in neutral. The engine raced but I was then able to turn it off. Despite damage to the front of the vehicle, the airbags did not deploy.”
NHTSA complaint #10330370, filed 2010-05, 22,000 milesRelated 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…
- 10186135Dec 9, 2020If the customer brakes sharply from a speed of > 30mph, without ABS intervention, there is a single cracking noise from the area of the ESP hydraulic unit
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 3 | 27% |
| 2023 | 5 | 23% |
| 2022 | 2 | 8% |
| 2020 | 1 | 3% |
| 2019 | 6 | 9% |
| 2018 | 2 | 2% |
| 2017 | 2 | 1% |
| 2016 | 9 | 3% |
| 2015 | 9 | 2% |
| 2014 | 2 | 2% |
| 2013 | 16 | 6% |
| 2012 | 15 | 6% |
| 2011 | 13 | 3% |
| 2010 | 7 | 2% |
| 2009 | 21 | 4% |
| 2008 | 17 | 3% |
Other parts of the 2009 Mercedes-Benz C300
198 complaintsAir bags
182 complaintsSteering
136 complaintsExterior lighting
118 complaintsSuspension
36 complaintsOther or unknown
31 complaintsBody and structure
27 complaintsElectronic stability control
20 complaintsEngine
16 complaintsTires
9 complaintsSeat belts
8 complaintsVehicle speed control
8 complaints
← All problems reported for the 2009 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