Skip to content
SteeringPart report

2012 Mercedes-Benz C300 Steering Problems

Complaints
8about this part
Share
3%of 267 total for the year
Median mileage
92,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the steering of the 2012 Mercedes-Benz C300, 3% of the 267 complaints for this model year. Where a mileage was given, the median is 92,000 miles.

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.

“The rear subframe has corroded around the areas where the trailing arm and control arm meet the subframe on both sides of the vehicle, and has disintegrated around the drivers side rear trailing arm causing it to have detached, along with a piece of the subframe. The metal of the subframe is distorted around the area of the break. The detached trailing arm and piece of subframe are now making contact with the fuel tank as well. …”

NHTSA complaint #11352792, filed 2020-09, 92,000 miles

“Steering wheel lock after vehicle is shut down. When you return to the vehicle insert the key the instrument cluster, speedo, steering wheel is unresponsive which will not allow you to turn the engine. This should be a recall it's a electronic steering lock that fails on several mercedes benz causing the owner to tow the vehicle to the dealership for a 2,000 dollar repair. It happens several times before it completely fails.”

NHTSA complaint #11124614, filed 2018-09, 90,000 miles

“I drove over an object on the highway and noticed my car veering left and wobbly when turning. A week after, it is squealing like a load of piglets in my trunk whenever I go over a bump, then my battery light came on and I took it to the shop and contacted my insurance, who denied my claim saying it was 'wear and tear'.”

NHTSA complaint #11459967, filed 2022-04

“My 2012 c300 has a rotted rear subframe making the car not able to be driven. It has major ,life threatening, costly damage and this issue already has a recall all over the world but not in the United States. If I can get the assistance to pay this repair, it will be gladly appreciated.”

NHTSA complaint #11602805, filed 2024-07

“The contact owns a 2012 Mercedes-Benz C300. The contact stated that the vehicle was unable to start-up as needed. The vehicle was towed to the dealer where it was diagnosed with a faulty steering column sensor that needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 104,692.”

NHTSA complaint #11482411, filed 2022-09, 104,692 miles

Related service bulletins

Steering: other model years

YearComplaintsShare of year
202214%
202026%
201957%
20181212%
2017136%
2016134%
2015236%
20141314%
20132610%
201283%
2011347%
20107116%
200913624%
200813620%

Other parts of the 2012 Mercedes-Benz C300

Air bags
114 complaints
Suspension
69 complaints
Body and structure
55 complaints
Other or unknown
23 complaints
Brakes
15 complaints
Electrical system
12 complaints
Fuel system
12 complaints
Engine
5 complaints
Transmission and drivetrain
5 complaints
Exterior lighting
4 complaints
Wheels
4 complaints
Visibility (wipers, defrost, mirrors)
3 complaints

← All problems reported for the 2012 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