The contact owns a 2014 Mercedes-Benz E350. The contact stated that the brake pedal was spongy while depressed, with the "Brake System" and "Low Brake Fluid" warning lights displayed. The vehicle was taken to a dealer, and the brake fluid was topped off; however, the failure reoccurred in less than 24 hours, and the same warning lights were displayed on the instrument panel. The vehicle was taken back to the dealer, and the technician was informed that there appeared to be a brake leak. Upon inspection of the vehicle, the technician discovered that the subframe was severely corroded, which had caused the brake failure. The contact informed the dealer that there was a class action lawsuit for the failure. The dealer acknowledged that the failure was a known issue; however, no further assistance was provided. The manufacturer was not notified of the failure. The vehicle was repaired. The failure mileage was 67,218.
2014 Mercedes-Benz E350: brake failure
7 of the 278 complaints about the 2014 Mercedes-Benz E350 describe brake failure.
- owner complaints
- 7
- of this car's complaints
- 3%
- recalls
- 0
Brake failure by model year
What owners say
Brake pedal became "spongy" and then total brake failure with dashboard warnings to check brake fluid. Caused by corroded brake lines that failed and allowed all brake fluid to be lost in the system. Extremely dangerous as no braking was available.
All of a sudden my brake error lights went on while driving to work. By the time I could stop at a garage on the way my brake fluid was very low and more was added. Had to again add more when I got home just so I could take the car to my repair shop. Independent repair specializing in mercedes identified 4 leaks in rear brake lines. Pictures show that all leaks are at or adjacent to clips attaching to the car. Something is wrong with the design or materials for this to happen consistently in the same car. Mechanic said this isn't expected until cars get at least 100k and shouldn't be consistently in the same connections. The fluid was draining so fast that if someone were driving a longer distance they may not have the ability to refill before brake failure. This is a safety hazard to have so many material failures at the same area of the brake lines.
The subframe corroded causing an unsafe potentially hazardous condition. Also the brake line was were corroded causing imminent brake failure. The rear springs rusted from the corrosion subframe defect..Mercedes required 2800 dollars from me to remedy the problem
Vehicle is 9 years old, with 73000 miles. Dealer Service has advised that the rear subframe and brake lines are rusting and need to be replaced as a safety issue. Cost quoted was $8800. Mercedes agreed to pick up the cost of the parts and the dealer offered to split the installation cost, bringing my total down to $3150. On-line research reveals this is a common problem across several product lines and has been an issue for 20+ years. Failure at this point could lead to uncontrolled movement of the the rear suspension structure, the rear suspension members, wheels, and electronic sensors in the ABS causing loss of control and brake failure.
Informed by local Mercedes dealer that the vehicle has severe rear brake line corrosion at 55K miles. Stated that the vehicle could suffer loss of braking power if the line(s) ruptured. This is unacceptable for a vehicle with this mileage. According to internet searches this is a widespread problem on 2014 models and earlier. Estimated cost to repair is $3600.
08/13/2018 when I was driving home today steering and brakes failed for like 1-2 minutes and I lost control.. Then all the instrument warning lighting started to flash continually the temp gauge and RPM was in motion. Srs and all pre safe functions malfunctioned I can send an video of this if there is a way to upload. I think this is a serious safety issue what if I lost control on a highway, even for a split seconds. Why I bought a mercedes I thought its a safer car well that's how they advertise it the best or nothing. But that couple of minutes was scary and shocking for me
Service bulletins that may apply
Related recalls
No recalls on record for this model year.
Questions about the 2014 Mercedes-Benz E350 brake failure
Is brake failure a common problem on the 2014 Mercedes-Benz E350?
7 of 278 owner complaints about the 2014 Mercedes-Benz E350 (3%) mention brake failure. The model year with the most reports is 2006.
Is there a recall or service bulletin for this on the 2014 Mercedes-Benz E350?
There are 0 recalls and 1 service bulletin for the same area of the car. Check them below with your VIN.
Other symptoms on the 2014 Mercedes-Benz E350
Fuel smell 22Fire or smoke 14Fuel leak 14Tire blowout 8Ball joint 7ABS 5Stalling 5
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