2014 MERCEDES-BENZ E350 Complaints

Brake line to rear completely rusted through. Lost brake control while driving. Upon further inspection, the entire rear subframe has significant rust damage that warrants replacement.

--Rear sub-frame broken. Part is available upon request. --Rear of car swerved when turning and breaking, probably due to control arm dislocation. --Dealer is aware of problem and has in fact replaced many sub-frames. --The dealer has inspected the sub-frame and determined that it is broken. --No warnings prior to failure.

I was driving on the highway and braked for traffic ahead of me. My car swerved hard to the right; however, I got it under control and brought it into the Mercedes dealer as soon as they had an opening. Upon examination, the dealer told me that the sub-chassis had corroded and broken away, damaging the torsion bar and denting the gas tank. A search online quickly showed that this is a common issue with Mercedes, and in some countries, they have issued a recall. The dealer quoted $5,250 to fix the car. This easily could have been a tragedy on the road with a less experienced driver behind the wheel. Mercedes must issue a recall for the inspection and repair of all affected vehicles.

On my way to work lady Tuesday 11/1/22 just a few blocks from my AT&T office I started smelling fuel. I thought it was an lad car next to me. Looking at the rear mirror I noticed a line of fuel following me. By the time I pulled a side and shut down the vehicle I lost the full tank. The vehicle was towed and is still at Mercedes Benz of Plano, Plano, TX. The tech said the orings had gone bad and the hose deteriorated. It seems very similar to this recall https://www.edmunds.com/car-news/2014-mercedes-benz-e350-recalled-for-fuel-line-problem.html I called Mercedes USA and opened CASE [XXX]. No reply yet. Fortunate the car didn’t catch on fire or someone thrower a cigarette while I was driving they downtown. Leaking fuel should not happen INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

When I took my vehicle to the dealership for service to have it inspected, I was told that it would not pass inspection due to the corrosion of the rear subframe. They told me this is a serious safety issue and that they are seeing a lot of Mercedes, especially in the last year and a half, that have this issue. The repair will cost me $4,500, Mercedes does not cover the cost even though it is a major structural issue. The subframe should last the life of the vehicle which is only 8 years old/60,000 miles and has been garage kept with all recommended services done by the dealer. My life and and the life of others is at risk as if the subframe fails, it causes loss of control of the car. Mercedes will not issue a recall. Mercedes owners don't even know to look out for this problem. Why do they have air bag recall and braking system recall but not a recall for this as Mercedes Benz in the UK does??

Owned the car for only ONE winter season and it failed to pass a vehicle safety inspection required in my state for operation. Mechanic reported a rear subframe deteriorating from winter road salts and related weather conditions, and that this was a common issue for my car in these particular climates, but Mercedes refuses to cover the cost in the US, but is currently covering the cost of repair in Europe and Canada. This us ridiculous my car warranty will not cover it and I can’t afford $3500 to repair and replace. The vehicle only had 58,000 miles on it at the time of diagnosis. What’s worse is it could technically happen again even when repaired because the subframe lacks the special coatings needed for winter protection. Now my beautiful car is not safe and I’m subject to municipal fines and penalties. OUTRAGEOUS.

Speaker(s) caught fire and sent smoke into car while driving. Dealer recognized issue immediately and said they have seen this before a few times. Mercedes said car is not in warranty son they will not support approx. bill of $4,000. The issue was discussed in various forums by several owners. I would like to see that Mercdes act responsibly and address the issue appropriately. Smoke coming into car while driving is hazardous in addition to hindering visibility and potentially cause serious accidents. Please make sure that Mercedes is reprimanded and have them recall vehicles to address the issue.

The rear sub-frame involving vehicle stability under braking and turning. A component that should remain attached to the vehicle has broken off due to corrosion. My vehicle is not that old that a key structural component of the car should break at the weld/attachment point. I have video of this defect. But its greater than 10MB and will not let me upload it is there an email I can send it to ?

The 2014 E350 4matic was diagnosed by the Dealer with a cracked rear subframe. When I questioned that is this common with a 2014 model EClass they were not sure. Calling MB USA they felt there weren't any complaints. When I called 9 different dealers in the USA looking for a NEW subframe for the E-Class, the common response was we are receiving many calls about replacing the subframe due to issues / cracked frame/rust, etc. They were all surprised and felt this is odd that this model would have so many subframe issues. MBUSA denied any issues as far as any structural issues. Very odd that my 2014 with approx 100k miles (garaged all the time) has subframe issues.

In a routine oil change, Mercedes dealership reports poorly rusted subframe. 2014 E350 with 160,000.