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Forward collision avoidancePart report

2015 Mercedes-Benz C300 Forward collision avoidance Problems

Complaints
8about this part
Share
2%of 381 total for the year
Median mileage
32,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the forward collision avoidance of the 2015 Mercedes-Benz C300, 2% of the 381 complaints for this model year. Where a mileage was given, the median is 32,000 miles. 1 of these say a crash was involved, according to the filers.

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.

“On february 9th, during my morning commute on the interstate the car lost power to the drivetrain. Message that displays was collision assist plus inoperative along with cruise control inoperative. With an amber esp light illuminated, there was no engine light on. When this message appeared the car would no longer accelerate (limp mode). In avoidance to being in a rear end collision I quickly pulled over, turned off the car and turned back on. Inoperative message, limp mode and esp light was cleared. I called dealer to notify. …”

NHTSA complaint #11397252, filed 2021-02, 91,000 miles

“I was driving at approx. 20-25 MPH during day light and all of a sudden there was light blinked on my dashboard for applying the brakes because of another vehicle ahead of me. I applied the brakes as well as brake assist plus system got activated as well. But still my vehicle end up hitting the vehicle ahead of me. The brake assist plus system which is claimed by mercedez to take brake automatically to bring the system to halt in case of emergency did not work and it end up hitting another vehicle in front of my vehicle”

NHTSA complaint #11074407, filed 2018-02, 32,000 miles

“Reported to local dealer and corporate office about the issues with shift module not shifting at random, meaning that the vehicle won't shift from park to drive or reverse, and so forth. The local dealer tried to reprogram the software, but the problem still persists. When plugging in my OBD II & DTC readers, code U0103 appairs which translates to Lost communication with gear shift control module . My concern with this is that I've had this issue while in traffic, which would make my vehicle a hazard. …”

NHTSA complaint #11476508, filed 2022-07

“I took my vehicle to the dealership to have recall worked on (top sunroof panel) apparently they refused to work on it because my sunroof is not working. I received a letter after i financed the vehicle stating that there was a recall so to take it in to the dealership and if sunroof needed to be fixed it would. Long story short, back in July the panel detached from my vehicle while i was on the freeway. Thankfully I didn’t cause an accident but I would like some help so the dealership can fix the recall.”

NHTSA complaint #11479093, filed 2022-08

“The contact owns a 2015 Mercedes-Benz C300. When the vehicle was started, the collision prevention assist plus inoperative warning indicator illuminated. The vehicle was taken to a dealer where it was diagnosed that rodents chewed the wiring and the wiring harness needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 1,800.”

NHTSA complaint #10926485, filed 2016-11, 1,800 miles

Related service bulletins

Forward collision avoidance: other model years

YearComplaintsShare of year
202419%
20231045%
2022520%
202039%
201934%
201844%
201731%
201631%
201582%
201310%

Other parts of the 2015 Mercedes-Benz C300

Engine
127 complaints
Fuel system
70 complaints
Other or unknown
63 complaints
Body and structure
60 complaints
Electrical system
50 complaints
Steering
23 complaints
Suspension
22 complaints
Transmission and drivetrain
20 complaints
Visibility (wipers, defrost, mirrors)
16 complaints
Air bags
12 complaints
Brakes
9 complaints
Wheels
8 complaints

← All problems reported for the 2015 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