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 brakes problems
50 complaints (18% of all complaints for this car). Typical mileage when it fails: 44,000. 1 crash reported.
- owner complaints
- 50
- of this car's complaints
- 18%
- typical mileage
- 44,000
- crashes
- 1
- recalls
- 0
Which part fails
- Foundation components: hoses, lines/piping, and fittings1
- Conventional: mechanical: linkage and cable1
At what mileage
Complaints by mileage at the time of the problem.
Mercedes-Benz E350 brakes problems in other years
Specific symptoms reported on the 2014 Mercedes-Benz E350 brakes
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Rear brake line failure
On April 10, 2020, the federal safety agency's Office of Defects Investigation (ODI) received a defect petition from Mr. Surjit Singh alleging premature corrosion of the rear brake lines in his 2013 Mercedes-Benz E350 sedan. The petitioner states that he was recently informed by a Mercedes dealer service department that his car had severely rusted brake lines that need[ed] to be replaced immediately at a cost of about $3300. He further stated that the dealer service advisor informed him that he had seen the issue on many cars like his. The petitioner requested ?that the federal safety agency launch an investigation into this serious issue of rusting brake lines on [his] 2013 Mercedes E350.? The brake line corrosion reported by the petitioner did not result in brake line leakage or any compromise in brake system performance before it was detected in a dealer vehicle inspection. The petitioner submitted a complaint to the federal safety agency documenting his experience (the federal safety agency ID 11319024).On April 24, 2020, ODI opened Defect Petition DP20-004 to evaluate the petitioner?s request. ODI conducted a search for all consumer complaints and Early Warning Reporting (EWR) data related to allegations of brake line corrosion or leakage in 2013 Mercedes-Benz E350 sedans and similarly equipped vehicles. The 2013 E350 is a fourth-generation Mercedes-Benz E-Class vehicle (W212 platform), which was first sold in the United States in 2009 as a 2010 model. Mercedes-Benz sold approximately 245 thousand model year 2010 through 2015 E-Class sedan and wagon vehicles in the United States with the same brake line design as the petitioner?s vehicle.ODI?s search for complaints and EWR data in 2013 Mercedes E350 vehicles found no additional records related to the alleged defect. Expanding the search to all W212 platform vehicles identified just one incident, a complaint alleging unspecified brake line corrosion and leakage in a 2011 Mercedes-Benz E550 (the federal safety agency ID 10902081). The complaint did not allege that the brake line leakage resulted in reduced brake performance, crash, or injury. The resulting failure rate of 0.4 failures per hundred thousand vehicles is extremely low for a population that includes vehicles that have been in service for over ten years. After reviewing the available data, ODI has not identified evidence of a defect trend in the subject E-Class vehicles that would support opening a defect investigation into premature brake line corrosion failure. the federal safety agency is authorized to issue an order requiring notification and remedy of a defect if the Agency?s investigation shows a defect in design, construction, or performance of a motor vehicle that presents an unreasonable risk to safety. 49 U.S.C. ?? 30102(a)(9), 30118. Since the information before the Agency is not indicative of a vehicle-based defect, it is unlikely that any investigation opened because of granting this petition would result in an order concerning the notification and remedy of a safety-related defect. Therefore, upon full consideration of the information presented in the petition and the potential risks to safety, the petition is denied. The denial of this petition does not foreclose the Agency from taking further action if warranted or the potential for a future finding that a safety-related defect exists based upon additional information the agency may receive.A Federal Register notice further detailing the federal safety agency?s reasons for denial of the petition will be forthcoming.
DP20004
What 2014 Mercedes-Benz E350 owners say
Most recent owner complaints, unedited.
The failure was when I hit the brakes hard in an emergency braking situation and the car very eratically and violently veered to the left. There was no warning and thank God there was no car coming in the left lane otherwise it would have been a broad side hit. I was doing 55 mph. We had the car inspected at a local shop and the left rear tie rod link was completely severed from the suspension sub-frame because of rust. The brake lines above the sub frame were also severely rusted and leaking. I called my closest dealer and they said the rusted frame replacement is covered under extended warrenty but not the brake lines which had the same issue, severe corrosion and a potential catostrophic failure! Mercedes Road Side Assistance was called to tow the car 70 miles to the closest shop.
Vehicle subframe corrosion (manufacturer extended warranty offered). Rear brake lines corroded/leaking. Vehicle leaks fuel; steel fuel line corroded. Vehicle has about 105k miles. Minor fire started when yard maintenance came in contact with fuel saturated ground where vehicle had been parked/moved out of the way just prior. With rear suspension subframe springs corroded, vehicle bottom can contact road surface while driving, scraping steel exhaust with fuel present. EXTREMELY dangerous. Local Sunbury Ohio Mercedes dealership inspected then offered subframe replacement. Stated it was leaking fuel and not hydraulic fluid we originally thought. Brake, suspension and fuel line corrosion repairs were quoted in excess of $4,000, which was a "great deal" according to them "because the subframe would already be removed and would make it much easier."
Brake line failure. Front section of the line that feeds the rear wheels leaked while traveling. Warning light came on. Purchased brake fluid and drove to local service provider. The rear section left to right above subframe was found to be rotted, but not leaking yet. Local service provider replaced front and rear brake lines.
Brake lines leaking because corrosion under frame from ABS module which is essential a safety aspect that should not be happening.
2014 Mercedes e350 these models as well as those from2009-2015. Have recall on subframe but the brake lines rust out and deteriorate as mine has now done. If you go on line you tube etc. you will see the issue and all complaints. I had my subframe replaced under warranty at Mercedes of flemington. About 1 1/2 years ago. While it was being serviced they asked me if I wanted to replace brake lines for $1200 since they had this part out job would be easy. So this means Mercedes is well aware of the deterioration of these line the man at mb said the metal was inferior and this is result. On YouTube it was stated that individuals took mb to court or accountability for this but results were negative. Yet problem exists. If you breaks fail while driving it is very dangerous. Also I believe there is a recall for gas lines for my model 2014 manufactured from June and July. The brake lines on my vehicle are rusting as is gas tank. This also is dangerous condition should accidents occur the lines because compromised with rust can much easily rupture causing fuels to spew out causing possible explosive condition. I have pictures and can forward
vehicle rear brake lines are corroded and leaking, while no corrosion was observed on surrounding parts
Rear’s brake line leaking brake fluid and car will not stop ;the rears brake line is all rusted the car only has 65 k miles and garage all it life It’s a very serious safety issue thanks for taking this e mailed [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The rear brake lines, along with the rear subframe have experienced severe rust and corrosion.
Driving home on a 30MPH street, had the brake light go on and felt the brake petal sink to the floor when I had to stop. Very concerning was grateful I wasn’t going faster. Cautiously made it home, and when I took it to the shop, they diagnosed that the brake lines had corroded. This is a huge safety concern and should be a recall as it could be fatal in certain circumstances.
Questions about the 2014 Mercedes-Benz E350 brakes
Does the 2014 Mercedes-Benz E350 have brakes problems?
Owners have filed 50 complaints about the brakes of the 2014 Mercedes-Benz E350, 18% of all its complaints, more than any other problem.
At what mileage do 2014 Mercedes-Benz E350 brakes problems start?
The typical (median) mileage in owner complaints is 44,000 miles.
Was there a recall on the 2014 Mercedes-Benz E350 brakes?
There is no recall for this problem on this model year.
What year does the Mercedes-Benz E350 have bad brakes?
The Mercedes-Benz E350 model years with the most brakes complaints are 2006 (54 complaints), 2014 (50 complaints) and 2013 (32 complaints).
Other 2014 Mercedes-Benz E350 problems
Airbags 49Electrical 38Fuel system 36Suspension 30Steering 27Body 25Engine 21Transmission 15Driver assistance 13Wheels 11Seats 8Tires 8Acceleration 6Visibility 6Seat belts 3
VIN decoder
See the problems and recalls for an exact car
Buying a used 2014 Mercedes-Benz E350?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history