2012 Mercedes-Benz E350 service brakes problems
19 owner complaints filed with NHTSA name the service brakes on the 2012 Mercedes-Benz E350 — 9% of all complaints for this model year.
What owners report
“Brake failure due to leaking brake fluid after dealership conducted rear sub frame extended warranty coverage replacement and recent brake fluid services and after two (2) multi point inspections including video and reported “no items failed” and “no items cautioned.” Vehicle was released to me…”
filed Jun 1, 2026
“The brake lines on my car rusted out from the brake booster all of way to the rear calipers. This is the third time it’s happened to me as I’ve owned multiple E classes. If Mercedes-Benz covers the subframe, why is the brake lines which are located right above said subframe not covered?”
filed Mar 20, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Service Brakes problems in other E350 years
| Year | Reports | Share |
|---|---|---|
| 2016 E350 | 3 | 6% |
| 2015 E350 | 4 | 13% |
| 2014 E350 | 46 | 17% |
| 2013 E350 | 29 | 18% |
| 2011 E350 | 13 | 6% |
| 2010 E350 | 11 | 6% |
| 2009 E350 | 2 | 3% |
| 2008 E350 | 4 | 2% |
| 2007 E350 | 2 | 1% |
| 2006 E350 | 46 | 12% |
Other reported problem areas on the 2012 Mercedes-Benz E350
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.