What 295 owners told NHTSA about the 2011 Mercedes-benz E-class

Dealer notes: Replace rear brake lines, found to be rusty recommend replacement with rear subframe replacement. This is a very well known issue and is not covered under recall from manufacturer. It will cost $3200 for brake line repair alone, not including the subframe. This is an extreme safety hazard and a common problem that has been acknowledged by the manufacturer.

NHTSA ODI 11707695

Subject: Safety Concern – Mercedes-Benz E350 4MATIC (2011) Subframe and Brake Line Rust Dear [Mercedes-Benz Customer Care / NHTSA], I am writing to report a serious safety concern regarding my 2011 Mercedes-Benz E350 4MATIC. Recently, I brought my vehicle in for recall service, and during the inspection, it was discovered that: The rear subframe is broken due to rust. The brake lines are extremely rusted, and I was advised that I could lose braking control if they are not replaced immediately. The estimated repair cost exceeds $4,000. I have been a long-time owner of Mercedes-Benz vehicles and part of the Mercedes-Benz family. However, I am now deeply concerned about the safety of myself, my family, and others on the road due to this severe corrosion issue, which I believe may be a widespread defect. I respectfully request that Mercedes-Benz investigate this issue and provide assistance, as the failure of these critical components poses a serious safety hazard. Thank you for your attention to this urgent matter. Sincerely, [XXX] [Phone: [XXX] ] [Email: [XXX] ] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11689944

Rear crossmember or ( rear subframe frame ) rust and It broke due to corrosion

NHTSA ODI 11688969

Brake lines have completely rusted through. Car had additional rust issues on the subframe which Mercedes admitted and replaced as part of an extended warranty . When that was repaired they never mentioned the brakes. Now 3 months later the brake lines rusted completely through … seems both subframe and lines rust at the same rate. And I would presume both cause equal safety risk. Why have they not yet issued an extended warranty on the brake lines? Both of these appear to be common issues. Hopefully NHTSA can encourage a change.

NHTSA ODI 11683829

Brake lines rust and corrode at the plastic support clips. Brake lines are not made from quality materials. Suffrage also corroded. Suffrage was changed by dealer though when vehicle was returned the Brake lines were broken. Car entered Suffrage service with brake lines intact, rusted i wouldn't doubt but intact. When returned after changing Suffrage, brake line was broken and leaking brake fluid. Extremely dangerous to return vehicle with broken brake lines and expected Owner to drive away with no brakes. Changing brake lines was offered at a cost of $4000 but the lines were not broken upon dropping off for service. Brake lines should be warrantied and changed to a less corrosive material. Engine mounts fail and cause vibration.

NHTSA ODI 11683488

A gasoline smells fills the cabin and the outside surrounding area the vehicle continually to the point making anyone surrounding the vehicle and or sitting in the front and back seats physically sick. The gasoline smells omits continually from the backseat and or trunk area no matter the amount of fuel that is in the tank. It is a fire hazard and also health hazard as well.

NHTSA ODI 11675838

The contact owns a 2011 Mercedes-Benz E350. The contact stated that while starting the vehicle, the SRS Malfunction message was displayed. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 156,094.

NHTSA ODI 11671719

This vehicle, with 115,000 miles has been discovered to have had the brackets in the subframe for BOTH rear lateral arms rust through and are broken causing a $5,000 repair estimate. The mechanic who found this (42 years as a mechanic) said he has never seen anything like it. This is a car where I had to replace the transmission at 49,000 miles and the control unit at 62,000 miles (over $13,000 in repairs). I saw through AI search that this problem has been reported many times but has not prompted an investigation. This issue should NEVER happen and is a MAJOR SAFETY threat.

NHTSA ODI 11652830

Rear brake lines are known to corrode. Had to get my line replaced at 78xxx miles. This is a common problem for the w212 Mercedes, along with the rear sub-frame rusting away. If the brake lines bursted when I was driving, I could of lost my life.

NHTSA ODI 11647869

Broken rear sub frame.

NHTSA ODI 11630893

The contact owns a 2011 Mercedes-Benz E350. The contact stated that on multiple occasions when fuel was administered into the vehicle, he observed a strong fuel odor in the cabin. The vehicle was taken to the residence and parked. The contact stated that as he came out to inspect the vehicle he observed a leak under the vehicle near the fuel spout. The vehicle was inspected and the rear seat and the access panel were removed and a large amount of condensation was present near the fuel tank. The vehicle was taken to a dealer where it has yet to be diagnosed. The manufacturer was notified of the failure. The failure mileage was 159,143.

NHTSA ODI 11625265

The known Subframe rust recall issue has caused the brake lines to rust and mercedes in St Louis wont cover the expense to fix this known extra problem. They want $2200.00 to fix the brakes that other dealers would charge half for. They want to escape this problem and I just want this fixed at their cost.

NHTSA ODI 11618566

Driving on interstate, hit the brakes and noticed the car was swaying hard to the left. After that it progressively got worse. When hitting even the smallest bump or braking I heard a metal on metal ‘thunk’ sound. My daughters were in the car and it was frightening. Upon further inspection by a Mercedes mechanic, the secondary frame had rusted and snapped into. After reading forums online I found it’s very common. They rust from the inside out. There was absolutely NO previous warning.

NHTSA ODI 11611182

Rear subframe rusted and broken apart.

NHTSA ODI 11609172

The contact owns a 2011 Mercedes-Benz E-350. The contact stated while driving at various speeds, the steering wheel would occasionally become difficult to maneuver. The contact stated the power steering fluid was previously refilled. The air bag warning light was illuminated intermittently. Additionally, the contact stated that there was an unusual amount of smoke coming from under the hood occasionally. The vehicle was taken to an independent mechanic, where it was diagnosed that the power steering fluid might have leaked. The mechanic could not determine the cause of the failure. An unknown local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 108,000.

NHTSA ODI 11606731

The contact owns a 2011 Mercedes-Benz E350. The contact received notification of NHTSA Campaign Number: 16V081000 (Air Bags); however, the part to do the recall repair was not yet available. The local dealer and another dealer, Mercedes-Benz of Sacramento (1810 Howe Ave, Sacramento, CA 95825) were contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue and a case was opened. The contact had not experienced a failure. Parts distribution disconnect.

NHTSA ODI 11596451

I bought my vehicle to the Mercedes dealership to get the rear subframe replaced under extended warranty due to it being rusted and broken from the rear suspension attachment points. While the Mercedes technician had the subframe removed he noted that the rear brake lines which are routed under the body and between the subframe had significant rust/corrosion on them.

NHTSA ODI 11589737

Wood trim throughout the car is cracking and falling off the car on the dash board as well as the doors and the rear side panels. The trim pieces that remain on the car are very sharp and jagged and are a significant risk for cuts in day to day use. In the event of an accident a passenger could be seriously injured from this jagged wood . My car is a 2011 E550 convertible, the W207 platform, the very same car in 4 door form the W212 platform, from model year 2010-2016 is fully covered for wood replacement as NHTSA has deemed it a safety issue. I have been told by Mercedes Benz corporate there is no coverage for my car, they suggested I report this safety issue to NHTSA in the hopes of having this safety issue addressed as quickly as possible. I respectfully request help in getting the issue with the wood in my car covered under the same safety consideration. Thank you.

NHTSA ODI 11586212

With less than 40,000 miles on the odometer, I noticed a gas smell both inside the car and outside. I was able to access the fuel filter assembly on the top of the gas tank and found it had a substantial leak resulting in a puddle of fuel on the assembly. The car has never been in a wreck on had any damage that would cause this problem. I researched and found earlier years of the same model had this problem resulting in Mercedes Benz extending the warranty to 150,000 miles for this part. They have refused to warranty my car. This is a major safety issue and by releasing gas fumes into the atmosphere is an environmental problem as well.

NHTSA ODI 11566557

The passenger front air bag malfunction,the passenger seat head rest deployed and And malfunction with any incident,the driver air bag is light on malfunction.after I took it to the dealership radio stop working no audio

NHTSA ODI 11561802

While driving at approximately 55mph on the highway, I was required to brake for a merging vehicle who decided to make a lane change at the last second. I used my breaks, and my car did not break correctly. Instead, the car pulled the the right and locked up, it felt as though I had lost control of the car. When I went to my mechanic, I thought it was a break issue. Instead, it turns out the whole rear sub frame had rusted. When researching this issue, I found many other similar experiences. The harm that this part failure lead to was extreme. This could have been deadly. This is a safety issue that the manufacturer does not address.

NHTSA ODI 11559920

The sunroof detached and the water from the rain leaked through the faulty sunroof into the interior doors, floorboard and dashboard. This happened to both the passenger side and the driver side. It was repaired out of pocket because of the hazard and lack of dealership accountability. Because the dealership wanted to charge $1000 to provide a water intrusion inspection so we went to an a MB authorization independent mechanic to repair the vehicle.This leaking lead to the growth of mold and lack driver visibility.Lastly they were no warnings before the leak happened.

NHTSA ODI 11549863

There is a strong odor of gasoline inside the passenger compartment and around the outside of the vehicle when the gas tank is filled. A previous maintenance code of 0456 was triggered. Several repairs have been done to try and solve this problem, but the issue still remains. There is currently no recall for this specific VIN model but Mercedes Benz have issued the recall for other models with the same issue.

NHTSA ODI 11549023

Bake line rusted through and drained brake fluid. Dashboard lit up bright red with a warning not to drive the car. Brake failure, spongy brake.

NHTSA ODI 11534850

Purchased vehicle May 22, 2023 at Direct Auto Sales of Orlando, Florida. Approximately two and a half weeks later the subframe broke away from the support arm rendering the vehicle in an inoperable and unsafe condition. A local mechanic said this vehicle should not have been driven. He said we could have been in an accident and suffered severe injuries or even death. Mercedes Benz of South Orlando inspected the vehicle and reported the subframe, fuel tank, front and rear axles, exhaust system, support arms, motor mounts, etc need replacing. Cost is $30,000. How could anyone fail to see damage this extensive.and not report it.

NHTSA ODI 11532967