There are 5 owner-reported brakes complaints for the 2015 Mercedes-Benz E-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Rear brake lines rusted out on top of rear subframe which is rusting out and caused immediate brake failure . Our lives and the lives of other were at risk because we were driving on highway and suddenly brakes went to floor and had complete loss of brakes There were no prior warnings no way to prevent this ...i see there is a recall on the subframe but not on the brake lines even though ive now read of this happening to many people
The sub frame of this car is being replaced under a warranty extension due to severe rusting and separation creating an extremely unsafe driving condition. It was determined during inspection the rear brake lines were also corroded. This is also due to environmental exposure and substandard materials of construction. Many E classes of the W212 and prior have this concern but Mercedes is not covering the brake lines as part of this warranty. In fact they are charging up to $4000 to replace with the subframe already removed!! This is highly concerning as this is a safety concern that must be covered.
What component or system failed or malfunctioned, and is it available for inspection upon request? -- sure -- the hard brake line popped open when I used the stop-hold function at a stop light, twice... How was your safety or the safety of others put at risk? - brakes had to be pumped the (short - close) drive home Has the problem been reproduced or confirmed by a dealer or independent service center? -- independent service Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -- no Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -- not prior to the failure, right when it popped was when i got the "check your low brake fluid" msg
I had a brake line blowout in my 2015 Benz E350 rear brake line blowout. The rear lines were complete rusted out.
I was driving the car and when applied the breaks noticed that they weren’t working. It was close to be an accident with the car in front of mine, but I was able to maneuver the car. When I stopped noticed that the break fluid container was almost empty and the fluid was leaking under the car. I brought the car to the Mercedes Benz dealership and they said that it was “normal corrosion” that caused the break lines to be totally rusted and leak. They also mentioned that “it was pretty common to happen in those cars during summer”. I had no option but to pay several thousand dollars for the replacement of the rusted and corroded brake lines. It is clear that Mercedes Benz doesn’t care about the safety of the passengers, and even worse, profiting from a defect in the materials that they use for the brake lines. Someone should make Mercedes-Benz recall the cars affected and replace the defective brake lines, free of cost for the owner. Passenger’s safety is not a business!
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026