ENGINE06/02/2026
The contact owns a 2023 Mercedes-Benz E-Class. The contact stated while driving at an undisclosed speed, the engine seized. The contact stated that the failure occurred while making a left turn. In addition, a malfunction error message illuminated. The contact stated while attempting to start the vehicle, the vehicle failed to start with the push to start. However, the vehicle did start using the key fob. The vehicle was taken to the dealer, however the failure was not duplicated. The manufacturer was not made aware of the failure. The failure mileage was approximately 25,000.
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL04/22/2026
The contact owns a 2023 Mercedes-Benz E450. The contact stated that while driving at various speeds with the cruise control activated, a yellow "Active Lane Keeping Assistance is Inoperable" message was displayed, followed by a red "Emergency Braking to Begin" message displayed on the instrument panel. To prevent the failure, the contact immediately deactivated the cruise control. The dealer was notified about the failure on several occasions, and two separate cases were filed with the manufacturer. The dealer replaced the steering wheel, replaced several fuses, and performed several software updates to correct the failure under warranty; however, the failure persisted after each repair. The vehicle was not repaired. The failure mileage was approximately 15,500.
UNKNOWN OR OTHER03/12/2026
While driving the vehicle in normal road conditions the car suddenly stop and activated the seat belts. This incidents has happened 4 times. The vehicle has been taken to the Mercedez-Benz service and it gas been released with no findings. I am concerned with this safety issue on my leased vehicle and the risk to cause a collision or injury. The last incident occurred on 3/8/2026, while driving the car.
SERVICE BRAKES02/07/2026
I am a small auto repair shop, in Houston, Texas. The driver's (left) side rear brake caliper bracket appears to be defective. The car came in with the mental to metal break wear on the driver's side, while the passenger's side brake pads still at 50% life. The break wear sensor didn't trigger the light, because there is only one sensor on the passenger side. Upon further investigation found that the inner brake pad was catching on the caliper bracket. Same was true for the new brake pad set as well. Fault appears to be in the caliper bracket. This could be a designed flaw by the manufacture., if so, it is your responsibility to get them.
TIRES10/29/2025
RE: Continental Pro Contact GX SSR MOE 245/40 R19 98 H M+S Original factory installed Mercedes E450 tires. I had 3 blowouts from hitting small potholes on 3 different tires in 1.5 years. These are complete immediate blowout going completely flat on impact. It could have very dangerous if I were driving a little faster and fortunately there was no other damage to the car or other persons. In each case, I hit a small pothole, and the tire blew out, flat to the ground. Because these are run flat tires, on the first 2 incidents I was able to drive home and to the dealer for tire repair/replacement. The third one was so bad that I could not drive all the way home and had to get towed. But all 3 incidents were scary and dangerous because of the sudden blowouts. The tires were not repairable and had to be replaced. I believe that the Mercedes Tire inflation instructions is unsafe and they should put more air in the tires to protect from the rim cutting into the tire when hitting a pothole. The driver's door "B" pilar placard says the "cold tire pressure: Front 41 psi Rear 47 psi". Mercedes repair shop inflates the tires according to the Fuel Filler Door decal that says " Front 36 psi, Rear 36 psi." That is a big difference in pressure -- as much as possible 11 psi under pressure. I believe these run flat tires failed because of too low of tire pressure when hitting the pothole. If the tires were inflated with the higher pressures as on the door pilar, the wheel rim would not have been able to cut into and through the tire wall because the higher tire pressure would prevent the impact of the rim cutting through the tire sidewall. I believe this a serious safety issue and Mercedes should be inflating this type run flat MOE tires to a much higher pressure and should not use the low-pressure instructions that are on the fuel door label. There should be a recall and repair instructions to increase run flat tire pressure on Mercedes E class vehicles.
TIRES10/29/2025
RE: Continental Pro Contact GX SSR MOE 245/40 R19 98 H M+S Original factory installed Mercedes E450 tires. I had 3 blowouts from hitting small potholes on 3 different tires in 1.5 years. These are complete immediate blowout going completely flat on impact. It could have very dangerous if I were driving a little faster and fortunately there was no other damage to the car or other persons. In each case, I hit a small pothole, and the tire blew out, flat to the ground. Because these are run flat tires, on the first 2 incidents I was able to drive home and to the dealer for tire repair/replacement. The third one was so bad that I could not drive all the way home and had to get towed. But all 3 incidents were scary and dangerous because of the sudden blowouts. The tires were not repairable and had to be replaced. I believe that the Mercedes Tire inflation instructions is unsafe and they should put more air in the tires to protect from the rim cutting into the tire when hitting a pothole. The driver's door "B" pilar placard says the "cold tire pressure: Front 41 psi Rear 47 psi". Mercedes repair shop inflates the tires according to the Fuel Filler Door decal that says " Front 36 psi, Rear 36 psi." That is a big difference in pressure -- as much as possible 11 psi under pressure. I believe these run flat tires failed because of too low of tire pressure when hitting the pothole. If the tires were inflated with the higher pressures as on the door pilar, the wheel rim would not have been able to cut into and through the tire wall because the higher tire pressure would prevent the impact of the rim cutting through the tire sidewall. I believe this a serious safety issue and Mercedes should be inflating this type run flat MOE tires to a much higher pressure and should not use the low-pressure instructions that are on the fuel door label. There should be a recall and repair instructions to increase run flat tire pressure on Mercedes E class vehicles.
TIRES10/29/2025
RE: Continental Pro Contact GX SSR MOE 245/40 R19 98 H M+S Original factory installed Mercedes E450 tires. I had 3 blowouts from hitting small potholes on 3 different tires in 1.5 years. These are complete immediate blowout going completely flat on impact. It could have very dangerous if I were driving a little faster and fortunately there was no other damage to the car or other persons. In each case, I hit a small pothole, and the tire blew out, flat to the ground. Because these are run flat tires, on the first 2 incidents I was able to drive home and to the dealer for tire repair/replacement. The third one was so bad that I could not drive all the way home and had to get towed. But all 3 incidents were scary and dangerous because of the sudden blowouts. The tires were not repairable and had to be replaced. I believe that the Mercedes Tire inflation instructions is unsafe and they should put more air in the tires to protect from the rim cutting into the tire when hitting a pothole. The driver's door "B" pilar placard says the "cold tire pressure: Front 41 psi Rear 47 psi". Mercedes repair shop inflates the tires according to the Fuel Filler Door decal that says " Front 36 psi, Rear 36 psi." That is a big difference in pressure -- as much as possible 11 psi under pressure. I believe these run flat tires failed because of too low of tire pressure when hitting the pothole. If the tires were inflated with the higher pressures as on the door pilar, the wheel rim would not have been able to cut into and through the tire wall because the higher tire pressure would prevent the impact of the rim cutting through the tire sidewall. I believe this a serious safety issue and Mercedes should be inflating this type run flat MOE tires to a much higher pressure and should not use the low-pressure instructions that are on the fuel door label. There should be a recall and repair instructions to increase run flat tire pressure on Mercedes E class vehicles.
TIRES06/17/2025
The contact owns a 2023 Mercedes-Benz E450 Convertible equipped with Continental Tires, Tire Line: ProContact GX SSR, Tire Size: 245/40/R19, DOT Number: 16YOF989F4623. The contact stated that while driving at an undisclosed speed over a bumpy road surface, the front driver's side tire experienced a blowout several times, requiring the vehicle to be towed to the dealer, where the front driver's side tire was replaced four times by the dealer. Additionally, the contact stated that the failure recurred while driving, and a tire was replaced. The vehicle manufacturer was notified of the failure, but no assistance was provided. The tire manufacturer was not notified of the failure. The vehicle failure mileage was approximately 50. The tire failure mileage was approximately 50. The VIN was not available.
ELECTRICAL SYSTEM05/23/2025
I am submitting this complaint regarding serious and repeated electronic failures in my 2023 Mercedes-Benz E 450 that pose a significant safety risk to myself and other drivers on the road. The vehicle has experienced complete dashboard failures on multiple occasions, including the loss of speedometer, fuel gauge, and gear shift indicators. Most critically, the vehicle recently shut down while in motion, displaying a “malfunction” warning and disabling the electronic steering system. I was unable to maneuver the vehicle off the road, creating an extremely dangerous situation. This vehicle has been brought to the dealership three or more times for the same issue, with no permanent resolution. I believe this constitutes a serious safety defect. I respectfully request that the NHTSA investigate this matter as a potential recall issue.
TIRES02/05/2025
Have replace 5 tires since April 2024 due to damage from pot holes
BACK OVER PREVENTION02/04/2025
My vehicle is equipped with a camera system which, when in reverse gear, displays objects/people behind the vehicle and, when going forward to park, displays objects/vehicles ahead. For the first 11 months of ownership, the system has worked properly. For the last 6 months the system has worked intermittently. The vehicle, purchased new, is under warranty and has been returned to the dealership 4 times for software updates and and part replacements. Two weeks after the last visit, the camera system was inoperative again. Shortly after I returned home and went out again the camera system worked properly. Several years ago, Mercedes recalled 347,000 vehicles for a similar problem. My vehicle was purchased after the recall and did not fall into the category of vehicles that were recalled but it seems that, with the Mercedes brand, the problem still persists. To the extent the camera system will alert you to the presence of a person when backing up, this is a safety issue which needs to be addressed. Thank you
POWER TRAIN,ENGINE11/30/2024
While driving, malfunction warning flashed on dash, followed by 48v malfunction warning, then engine coolant overheat warning. The car then went into limp mode and finally stopped completely. Luckily this occurred on a residential street and not on a high speed freeway - the car gave very little warning before drastically reduced speed and shutting down systems. A 48 volt battery problem should have a redundant system to prevent the engine from overheating and not shutting down the vehicle at speed. Very dangerous!
Showing 12 of 23 complaints.
