Mercedes-Benz E-Class Complaints

3,253 consumer complaints on file.

#11694082October 17, 2025
BACK OVER PREVENTION
The contact owns a 2020 Mercedes-Benz E-450. The contact stated that while attempting to reverse, the rearview camera became inoperative. The contact stated that the rearview camera image was frozen. The contact also expressed concerns that the emblem located on the rear of the vehicle was intermittently blocking the rearview image. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 48,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11693801October 16, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2014 Mercedes-Benz E-350. The contact stated that while the vehicle was parked and occupied, the contact heard an abnormal rattling sound coming from the engine that lasted for approximately 3 seconds when first started. An independent mechanic was contacted. The vehicle was taken to an independent mechanic, and the contact was informed that the failure was a common issue, and that the vehicle operated as designed. The contact stated that the failure might be related to the timing chain or the lifters. The contact stated that there were no issues while driving the vehicle, only whenever the vehicle was first started. The contact stated that after the engine had warmed up to operating temperature, the sound was no longer heard. The vehicle was not repaired. The manufacturer was notified of the failure and advised the contact to report the failure to the NHTSA Hotline. The approximate failure mileage was 140,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11693371October 14, 2025
SERVICE BRAKES, FUEL/PROPULSION SYSTEM
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11693224October 13, 2025
WHEELS, SERVICE BRAKES
The rear subframe needs fixing. And they are putting my car on hold for 3 weeks, denied a loaner car, and I have to get back to work.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11690634September 30, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
As I entered a single lane roundabout the car suddenly stopped very abruptly. There was no imminent danger nor were there any cars coming through the roundabout. There was no reason to apply the brakes. Fortunately there was no car behind me otherwise there certainly would have been a rear end collision. I was jarred by the abrupt stop and sustained injury to my back. I will be notifying the dealer. The vehicle has not yet been inspected. There were no warning lights or messages prior to the incident.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11689944September 26, 2025
SERVICE BRAKES, STEERING
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)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11689774September 25, 2025
AIR BAGS
The contact owned a 2018 Mercedes-Benz E300. The contact stated that while driving 30 MPH, another vehicle leaving the parking lot pulled in front of the contact's vehicle, and the contact's vehicle crashed into the side of the other vehicle. The air bags failed to deploy. The contact's face and chest hit the steering wheel. The contact sustained soreness on the face, and from the shoulders down to the lower back and legs. The contact was currently dragging one leg while walking. The contact had received dental and medical assistance. Additionally, the contact underwent an MRI. The contact was informed that the third and fourth vertebrae were damaged. The vehicle was towed and totaled. A police report was filed. The dealer was notified of the failure. The manufacturer was notified of the failure and informed the contact that the vehicle operated as designed. The failure mileage was unknown.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11689329September 24, 2025
SERVICE BRAKES
My brakes failed, the rear brake lines had corroded.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11689488September 24, 2025
SERVICE BRAKES, STRUCTURE:BODY
I took car to dealer to have subframe repaired due to rust and the brake lines are rusted as well due to this issue and i am being charged for the brake lines.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688969September 22, 2025
SUSPENSION
Rear crossmember or ( rear subframe frame ) rust and It broke due to corrosion
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688398September 19, 2025
ELECTRICAL SYSTEM
The digital dash, which shows my speed, mileage, engine temperature, rims and fuel level goes blank. Then comes on for a few seconds and goes dark again. Vehicle only has 43k miles. MB dealer said this is not uncommon condition with the 2018 mb e400. Car is not safe to drive. MB dealer wants $6,100.00 to replace the unit. A software reboot will not work.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11688243September 18, 2025
STEERING, UNKNOWN OR OTHER, ENGINE
Car difficult to control found to have corroded sub frame and rear break lines. Very unsafe to drive brought to independent dealer who had car towed back to Mercedes. No warning lamps, or other symptoms prior to failure. Scary situation.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687667September 16, 2025
FUEL/PROPULSION SYSTEM
Fuel smell in the rear of the car, it was checked by a indepent mechanic and the tank is leaking fuel. They said is the Fuel filter which is usually faulty in this model. It seems the car can catch fire according to the mechanig. No warnings of the leaking in the dashboard, only the strong smell.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687067September 13, 2025
AIR BAGS
The Air bag light just came on when I turned the car on I had it checked by a mechanic and by an electrician. The code is B000113 The Squib For The Driver Airbag (Stage 1) Has A Malfunction. There Is An Open Circuit. They checked the clock spring it’s plugged in and even tried using a new air bag but they believe the clock spring is broken.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685698September 8, 2025
ENGINE
The camshaft adjuster failure. Though I'm told safety is not in immediate danger, it's a very expensive fix that can cause other issues if left unpaired. It began subtly with strange noises, hesitation during start-up, inconsistent performance. I take meticulous care of this vehicle. Regular service. Genuine parts. Always handled with care. And yet, here I am, facing a repair bill that is not only shocking, but unjust. Especially for this to be a common problem. Not to mention the potential for severe engine damage if left unresolved. I’ve since learned that I am not alone. Many loyal Mercedes owners have faced the same issue; often at relatively low mileage, with little to no warning. This is not an isolated defect. It is a systemic issue with significant implications, not just for the vehicle, but for the trust your customers place in your brand. To say I’m disappointed is an understatement. I feel let down. Mercedes-Benz has always held a status. A great looking car. A great engineered car. And while this is a great looking car, it has a serious engineering flaw. German and Japanese engineered cars hold the standard and this must be fixed. A goodwill repair assistance, or a broader recall initiative would show some integrity.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685563September 7, 2025
SERVICE BRAKES
vehicle rear brake lines are corroded and leaking, while no corrosion was observed on surrounding parts
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685019September 4, 2025
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact purchased a 2014 Mercedes-Benz E350. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the mileage was 109,550. It was later discovered that the mileage on the Title was approximately 300,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685111September 4, 2025
ENGINE AND ENGINE COOLING
See attached document for complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683829August 29, 2025
SERVICE BRAKES
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683488August 27, 2025
SERVICE BRAKES, ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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