MERCEDES-BENZ Complaints

Automatic trunk closing mechanism caused the trunk hood to close on my head as I was putting groceries in the trunk. This has occurred several times in the past but this time it hit my head with more force. I have not brought it to a dealer and it has not been inspected by the manufacturer, police or any other entity. There was no warning or alarm before it closed. This could cause serious head injury to an individual on blood thinners.

When operating at 65-70 MPH on a limited access highway and encountering a rough road surface, the vehicle seemed to rather dramatically "skip" to the side. The GLE450e moved laterally while maintaining the intended forward direction. During two of these events the vehicle departed the marked lane and in one of I had to immediately seize full manual control to avoid striking a vehicle in the adjacent lane. (In all events I was driving in the right lane.) This has occurred four times; three of the times adaptive cruise was set; one time not. In at least three of the cases the road appeared to have ripples in the asphalt. I am not sure of the road surface in the 4th case. Regardless, no "holes" were encountered. Notes: The date listed was the approximate first date of the described occurrence. This occurred in two states, OH and FL. There was less than 10,000 miles on the vehicle when the events occurred. A question: I wonder if the relatively great weight of the rear of the vehicle was a factor in these incidents. The battery is located rearward and the rear tires require unusually greater pressure -- much more than the front tires.

Throttle body and accelerator pedal position sensors failed. Component is available for inspection upon request. Independent service center confirmed failure on 1/3/2026 with 6 stored fault codes: P2101, P0122, P0222, P0123, P0223, P2135. Vehicle shuts off while driving without warning at various speeds. Loss of power steering and power brakes occurs when engine stalls, creating immediate risk of crash, injury or death to occupants and other drivers. Manufacturer customer service confirmed in writing 4 times that engine shutting off while driving is a safety issue and that these exact codes match Service Campaign 2022090005. On 1/7/2026, manufacturer denied campaign applies to this vehicle and refused no-charge dealer inspection, demanding customer pay diagnostic fees to confirm defect they already documented. Vehicle has not been inspected by manufacturer or dealer because manufacturer refuses free inspection. Check engine light illuminated prior to stall events. Manufacturer has actual knowledge of safety defect under 49 U.S.C. 30118 and is creating financial barrier to repair of defect covered by their own service campaign. Request NHTSA investigation and order manufacturer to repair under Service Campaign 2022090005 at no charge.

The factory upgrade 21 inch spoke wheels with Pirelli P-Zero low profile tires are averaging a blow out every 800 miles. 5 flats and 2 sidewall blisters in the last 10,000 miles. Pirelli P-Zero 255/35/R21 Front and 285/30/R21 Rear are all four available for inspection if you tell me to save them before I replace them. There have been thousands of complaints and law suits re this issue just in the last 5 years on mercedes cars with low profile tires; to Mercedes, Pirelli, through legal discovery, to enthusiasts forums, and to NHTSA My first blowout was at 30 mph hitting a 1 1/2" deep pothole full of rain water. That one blew out the front right and blistered the sideall of the right rear at once. Then one of the new replacements blew on hitting a storm drain set 1" into the pavement on the way home from the dealership. I've been driving 60 years, and never had a single pothole blowout before now. Sidewall tears release all or most of the air at once creating an extremely dangerous situation. Somebody will lose control and hurt or kill someone, or behurt while stopped in an unsafe spot. Since the car can't be towed and has no spare, it is exteremely costly and inconvenient to replace a tire. It has cost me thousands so far, and left my disabled wife and me stranded beside the highway. Car is on a flat and one and a blister on a second tire right now in driveway. Best fix is to go to a square wheel/tire fitment using 19" x 8.5" wheels with 35 offset 66.6 mm bore on all four, all season radials. To keep outside diamter the same for the computer, 255/45/R19 /AS/ XL W and with acoustic tuning or dampening to match the quiet factory tires on these cars. 20" wheels is no good, because to maintain diameter would require the same too short 35 sidewall profile on two of the tires. Staggered 19 inch wheels will work, but the square fitment allows for tire rotaion and for the carrying of a spare. Maybe make that optional for replacement recall.

My 2023 GLC300 suffered a severe, unprovoked emergency brake deployment in traffic, nearly causing a pileup. on [XXX]. The car has only 14,500 miles and has a chronic history of dangerous, unprovoked Active Brake Assist deployments. It broke down twice in its first month of ownership for other reasons, slammed on the brakes during a left-hand turn last year, nearly causing an accident and on [XXX] executed a violent, full-lock emergency stop from 25mph in light traffic with no obstacles in sight, nearly causing a multi-car pileup and putting me thru the windshield. The car was towed to MB of Boston in Somerville under factory warranty on [XXX]. I have refused to drive this hazardous and unsafe vehicle, the Dealer did a quick factory update and an a clean erase of the following code, Code B229BF9, but I have refused to take it back util they have proven to me that this dangerous issue has been fully resolved, I am a [XXX] with a perfect driving record and I frequently drive this car on the highway and I am very fearful the car will do it on the highway which would be catastrophic to me and other motorists. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Suspension exhibits excessive bounce/instability over road irregularities, unsafe on uneven pavement, affects steering control. Car available for inspection. Checked by two authorized dealerships, both closed as "operating as designed" without resolving it. Also inspected by manufacturer's Field Service Engineer, same result. Issue began after a phantom braking event — vehicle braked suddenly and unexpectedly on its own while changing lanes at highway speed, no obstruction present, no driver error — also damaged the steering column, since replaced.

Was driving down the highway a the panel between the windshield and panoramic sunroof detached a flew off. Other models are included in this same recall but my make and model are not

My mechanic said that he believes there is a recall on a recalled part this was previously repaired per Mercedes notice of safety recall dated April 2018. The recall remedy provided by the manufacturer has failed to permanently fix the safety defect, and the vehicle remains unsafe to drive. "On certain Model Year (“MY”) 2014-2017 B-Class electric, MY 2012-2018 C-Class, MY 2012-2017 E-Class, MY 2014-2018 CLA, MY 2015-2018 GLA, MY 2016-2018 GLC, and MY 2013-2015 GLK-Class vehicles, an electrostatic discharge, when combined with a broken steering column module clock spring and an insufficient grounding of the steering components, could lead to an inadvertent deployment of the driver airbag. An inadvertent driver airbag deployment may cause a risk of injury to the driver and might increase the risk of a crash." Currently my airbag and horn do not work as a result of this defect and Mercedes said there is no current safety recalls, however this is the exact issue that was replaced and fixed before I purchased it. They want to charge me a $300 diagnostic fee, (when my mechanic has already looked at it), I am not wanting to pay the dealership for an issue that is clearly related to the recall issue that was not properly fixed. My car is a safety issue to myself and anyone if I drive it, my horn does not work, so that makes it hard to prevent accidents and my airbag, upon reading further online, could potentially deploy and CAUSE and accident.

My mechanic said that he believes there is a recall on a recalled part this was previously repaired per Mercedes notice of safety recall dated April 2018. The recall remedy provided by the manufacturer has failed to permanently fix the safety defect, and the vehicle remains unsafe to drive. "On certain Model Year (“MY”) 2014-2017 B-Class electric, MY 2012-2018 C-Class, MY 2012-2017 E-Class, MY 2014-2018 CLA, MY 2015-2018 GLA, MY 2016-2018 GLC, and MY 2013-2015 GLK-Class vehicles, an electrostatic discharge, when combined with a broken steering column module clock spring and an insufficient grounding of the steering components, could lead to an inadvertent deployment of the driver airbag. An inadvertent driver airbag deployment may cause a risk of injury to the driver and might increase the risk of a crash." Currently my airbag and horn do not work as a result of this defect and Mercedes said there is no current safety recalls, however this is the exact issue that was replaced and fixed before I purchased it. They want to charge me a $300 diagnostic fee, (when my mechanic has already looked at it), I am not wanting to pay the dealership for an issue that is clearly related to the recall issue that was not properly fixed. My car is a safety issue to myself and anyone if I drive it, my horn does not work, so that makes it hard to prevent accidents and my airbag, upon reading further online, could potentially deploy and CAUSE and accident.

The contact owns a 2018 Mercedes-Benz S560 4MATIC. The contact stated that the vehicle had experienced failures associated with NHTSA Campaign Number: 26V216000 (Power Train). The vehicle was taken to a dealer, and the contact was informed that the part to do the recall repair was not yet available. The contact was informed that once the parts for the recall repair were available, vehicle owners would be notified. The vehicle was not repaired. The contact attempted to contact the manufacturer by telephone and by email; however, no response was received. The failure mileage was unavailable.