2012 MERCEDES-BENZ E350 Complaints

My check engine light has been on for about a year, I have been told by both the dealerships here in Memphis/Collierville that as long as the light is an orange color there is nothing to worry about but it has been on consistently for about a year. I had a Diagnostic test done on [XXX] by Dr. Benz Affordable Mercedes Benz care and it was revealed that ME control module, oxygen sensor, engine wiring harness has oil intrusion all throughout. I would hate to attempt to drive my vehicle and all of a sudden it is severely damaged because of this. I feel this may be a very costly expense and would like some assistance in taking care of this matter. I love my car and have not had any problems, and hope to have it several years more. I only have 116,038 miles on this 2012 vehicle that I purchased in 2015 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On April 29, 2024, I was driving my 2012 E350 Mercedes and the brakes failed upon leaving an appointment. There was less than 10% stopping ability. Fortunately, I was able to use my transmission toggles and Emergency brake as back up, if needed. I immediately stopped to pick up brake fluid and filled the reservoir which was virtually empty. Drove the vehicle home, left it parked for two hours and then tried to then drive it again but to no avail. The system had "bled" all over my garage floor and driveway. As such it was taken to the dealership on a flatbed. Estimated repair... $1,700 This follows having to replace the cargo springs due to corrosion and breakage, the rear suspension sub assembly currently being replaced due to corrosion which Mercedes acknowledged is a problem and is covering under an extended warranty. In my mind, all of this is related and certainly a safety concern, beyond the expensive repair costs already and now currently being incurred. Can you help?

On my recent visit to my trusted independent service center, which specializes in Mercedes-Benz, they noticed serious corrosion problems. There were no symptoms to alert me to any problem. Also, I never received the notice from MB so how would I know? My mechanic asked me to sign a waiver (which I never have had to do before) that stated the rear subframe was rotted completely through; needs to be replaced ASAP; and is unsafe to drive. The rear brakes lines also had corrosion. This tells me the car is unsafe to drive, and must be fixed. It seems that MB issued an "extended warranty" to cover the rear subframe, but not the rear brake lines. I contacted MB Corporate who said they 'may' offer some assistance. I have an appointment next week with a MB dealer who must provide an estimate of the damage and cost to MB for their approval before doing any work. As a result of learning what's eating my car underneath, I won't take it on any extended trips. I really am afraid of something bad happening. And it has, to many others. No one should ever have to get into a car and worry about these two safety issues. It’s very important that Mercedes-Benz recognizes its responsibility to not only its customers, but to all the other drivers on the road who can be negatively affected through accidents caused by these corrosion issues.

The contact owns a 2012 Mercedes-Benz E350. The contact stated while operating the vehicle, there was an abnormal fuel odor inside the cabin of the vehicle. The cause of the failure was not yet available. The manufacturer was notified of the failure. The local dealer was not yet contacted. The contact was informed that the VIN was not included in the NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 183,000.

Brake line corroded under protective cover. Was driving and felt mushy brakes and came home to almost no brake fluid. Found leak under driver side door. Kind of weird because it’s under a cover.

The top of the fuel pump is leaking (driver rear side, under the seat) and the leaking can be seen outside of the car as a moisture on the underside of the car. The fuel filter side (passenger side, under the seat) has a small amount of fuel moisture. The current mileage on car is 76,620 miles.

rear sub frame corroded which results in unsafe driving, corroded brake line which results in unsafe driving. blind spot sensor in the bumper is corroded due to no protection against environment.

The car was parked in the driveway outside. In the AM when getting into the car I saw that the drivers HEAD-REST had engaged by itself during the day. There was no airbag only pieces of plastic and springs on the seat. The headrest was just hanging there and in no way could be reset. Car was taken to the dealer for repair. Extended warranty would not cover it stating airbag issue even though the headrest has no airbag. Dealer is repairing the headrest - total cost $1,800. Mercedes also does no want to cover it since the auto is a 2012. The problem was reported to Mercedes and they stated that there was no recall on the item. And that is it. Spoke to dealer who indicated that they have seen this problem before but not widespread. And that is it!! Mercedes quality is one to be desired.

My car had a pool of brake fluid under the car and when I turned it on, it said the brake fluid was low. When I went to check the reservoir it was empty. The underpanels were removed and the brake lines were rotted out in several areas. I was shocked because my car is in mint condition and I have always avoided taking it out when the roads are salted in the winter. I am lucky this happened when the car was parked. This has never happened to the cars in my family which were never treated with as much care.

The contact owns a 2012 Mercedes-Benz E350. The contact stated that there was a fuel odor inside and outside the vehicle. The contact stated that after lifting the rear seats, he became aware of a puddle of fuel near the housing. There was no warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the fuel filter flange had failed, and the fuel assembly needed to be replaced. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline). The manufacture was notified of the failure and the contact was informed that the VIN was not included in the recall. The contact was advised to contact the NHTSA Hotline for assistance. The failure mileage was approximately 200,000.