2011 Mercedes-Benz C300 power train problems

10 owner complaints filed with NHTSA name the power train on the 2011 Mercedes-Benz C300 — 2% of all complaints for this model year.

Power Train complaints

share of all complaints

—

median reported incident mileage

0 / 0

crash / fire reports

What owners report

“Electronic steering locks are failing in these cars at an alarming rate. When it fails, the car will be stranded or if driving the car will completely lock the steering and take away control from the driver. This is a safety issue that Mercedes should be recalling and fixing because it will take…”
filed Feb 1, 2023
“The subframe and the brake lines are very faulty in this car when it comes to its design. The subframe and brake lines rust easily and are cheaply made for this car. My car break down while driving making it hard to have pressure on the brakes. My incident was around the school area. There were no…”
filed Nov 27, 2022

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause…
LI35.30-P-058566 · Service Bulletin/Repair Instructions · issued Jul 14, 2026
Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in…
LI33.30-P-056665 · Service Bulletin/Repair Instructions · issued Nov 15, 2025