Filed Dec 15, 20232,976 vehiclesMercedes-Benz Usa, Llc
Defect. Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014-2020 C-Class, CLA, GLA, S-Class, GLC, and GLE vehicles. Please refer to MBUSA's recall report for specific vehicle details. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair, allowing the front panel to detach from the vehicle.
Risk. A detached roof panel can become a road hazard, increasing the risk of a crash.
Remedy. Dealers will replace the front panel, free of charge. Owner notification letters were mailed on August 2, 2024. Owner notification letters will be mailed in phases, on, March 22,2024, and August 2, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of NHTSA recall number 21V-197.
Structure › Body › Roof and Pillars21V197000
Filed Mar 19, 202115,096 vehiclesMercedes-Benz Usa, Llc
Defect. Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2020 C300 Coupe, C43 Coupe AMG, C43 AMG, 2015-2020 C300, GLA250, 2016-2018 C350e, CLA45 Coupe AMG, 2015 C400, S65 AMG, 2015-2019 C63 AMG, 2016 C450, 2015-2016 GLA45 AMG, S600, 2016-2020 GLC300, 2017-2019 GLC43 AMG, GLE43 Coupe AMG, 2014-2019 CLA250 Coupe, 2014-2015 CLA45 AMG, 2018 GLC63 AMG, 2014-2017 S550, 2018-2020 S450, 2016-2019 GLE63 Coupe AMG, 2016 GLE450 Coupe, 2014-2020 S63 AMG, 2018-2019 S560, and 2019 GLC350e vehicles equipped with a panoramic sunroof. The front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair.
Risk. The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the risk of a crash.
Remedy. Mercedes-Benz dealer will remove the bonded panel and will install a new front panel by following the detailed repair instructions and using the approved primer, cleaner and adhesive, free of charge. Owner notification letters were mailed on September 3, 2021 and October 26, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
Communication19V787000
Filed Nov 1, 201924,226 vehiclesMercedes-Benz Usa, Llc.
Defect. Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf
Risk. An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
Remedy. MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019120008.
Air Bags › Frontal17V627000
Filed Oct 6, 2017495,290 vehiclesMercedes-Benz Usa, Llc.
Defect. Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air bag clockspring is broken.
Risk. If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.
Remedy. MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
What owners reported
Newest filings
Unknown or Other
Filed Aug 28, 2026MI
My 2016 Mercedes-Benz CLA 250 (VIN: [XXX]) has a check engine light for code P052E, which points to a broken crankcase ventilation valve. My car has only 59,000 miles on it, but this same exact part already broke once before and was replaced under the original warranty. Now, the replacement part has failed too. This proves the part is defective and keeps breaking. Mercedes-Benz already knows this part is defective. They gave a free 15-year or 150,000-mile extended warranty to fix this exact issue for free on the C-Class and other longitudinal M274 engine platforms. However, they are actively denying coverage for my CLA 250's M270 engine variant, despite the two vehicles sharing nearly identical engine blocks, matching subcomponents, and the exact same broken part. Because of this unfair engine code technicality, Mercedes-Benz is forcing CLA owners to pay thousands of dollars out of pocket for a recurring problem they fix for free on a C-Class. I urge the NHTSA to look into this engine loophole and force Mercedes-Benz to include the M270 engine variants under the 15-year/150,000-mile free repair program. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Unknown or Other
Filed Apr 18, 2026IL
Panoramic sunroof fails to open/ close evenly due to plastic track failure. One side binds while the other moves, causing glass to tilt and jam. Risk of glass shattering, sudden detachment, distraction while driving, and water intrusion affecting airbags/electronics.
Air BagsCrash2 injured
Filed Jan 30, 2026FL
My car totaled by another car and my air bags did not deploy.
Engine
Filed Jan 14, 2026IL
I am reporting a P052E fault code related to the crankcase ventilation system on my Mercedes-Benz GLA. This is a known and widespread defect on multiple Mercedes-Benz models and is commonly covered under service bulletins and extended warranties up to 150,000 miles. My vehicle has 92,000 miles. However, Mercedes-Benz has refused coverage, stating that the GLA model is not included, despite extensive evidence that this same defect affects GLA vehicles. Numerous documented owner reports and forum discussions confirm identical failures on GLA models. This appears to be a systemic defect rather than normal wear. I am requesting that NHTSA investigate this issue and require Mercedes-Benz to extend coverage and assume responsibility for repairs on affected GLA vehicles.
Air Bags
Filed Oct 16, 2025DC
My airbag malfunction light appeared on the dashboard. Once the light appeared, the HORN STOPPED WORKING, a safety hazard that caused me not to be able to drive my vehicle for over a year due to the risk! I took the vehicle to the Mercedes-Benz dealership, 200 S Pickett St, Alexandria, VA 22304, and was told that the recall was closed and that they could not assist me. I was advised to contact NHTSA. PLEASE HELP AS I WOULD LIKE TO DRIVE MY VEHICLE & BE SAFE ON THE ROAD! This is a huge safety hazard!!
Electrical System
Filed Mar 17, 2025CA
My GLA250 Instrument Cluster had been glitching out. The turn signals indicators would go off when the turn signal lights are initiated. The Check engine light, high beam light, and other warning lights come on for no reason, or dim or no backlight, inaccurate gauge readings, erratic gauge needle movement, and even a completely dead cluster. I took the car to the dealership and they said the instrument cluster was faulty and needed to be replace. The car is still at the dealership because they haven't figured out how to program it right. Since the instrument cluster is a vital component of the vehicles safety feature, this should be a recall. I have spent $3500.00 to fix an issue that should not have occurred since the car is only 6 years old. There are several online forums that discuss this very same issue that Mercedes is having with their instrument clusters.
Unknown or Other
Filed Oct 14, 2024OH
CEL P052E POSITIVE CRANKCASE VENTILATION REGULATOR VALVE PERFORMANCE MANY OWNERS HAVE HAD ISSUES WITH THIS PROBLEM
Service Brakes
Filed Aug 24, 2024CA
Transmission from drive well sometimes shift to neutral while it is at a stand still usually waiting for a light to turn green, after which it takes its time to shift back into drive. While this happened a warning light appeared malfunction take straight to dealer. Yesterday seems as if ABS kicked in while driving, threw me into the steering wheel than stopped shaking within 1-2 sec, and let me accelerate off. Was passing in an individual at the time. Don’t know what to make of it.
Engine
Filed Jul 28, 2024NJ
Engine runs fine while driving and then cuts off while coming to a stop. This happened three (3) times last week since 7/23/24. Each time it happened I was stopping at a traffic light! After the failure a warning lamp flashed something about, Do Not Change Gears. Will make appointment to have it checked out as soon as possible.
Engine
Filed Jun 24, 2024VA
Fault code P052E71 crankcase ventilation has a malfunction. The actuator is blocked. This seems to be a common issue with 4 cylinder turbo engines. Dealer charged $2500 to replace, and even after replacements system fails again within 1-2 years.
Engine and Engine Cooling › Exhaust System › Emission Control › Crankcase (pcv)
Filed Jun 14, 202488,180 milesNJ
The contact's daughter owns a 2016 Mercedes-Benz GLA250. The contact stated while driving 15 MPH, the check engine warning light illuminated. The vehicle was taken to a dealer, where it was diagnosed that the crankcase ventilation system had failed. The dealer determined that the engine oil separator needed to be replaced. The vehicle was not repaired. The contact related the failure to an unknown Extended Warranty Coverage. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 88,180.
Fuel/Propulsion System
Filed May 3, 202463,000 milesNJ
The contact owns a 2016 Mercedes Benz GLA. The contact stated that the check engine light had appeared on the instrument panel. The vehicle was taken to a dealer where a diagnostic was performed. The dealer determined that the crankcase ventilation valve had malfunctioned which blocked the actuator. As a result, both the fuel and the oil had started to mix inside the engine which caused the ventilation valve to not close as intended. The contact was given an estimate for repair. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 63,000.
Engine
Filed Apr 5, 2024NY
Following regular maintenance of my 2016 GLA 250 with my mechanic for the car repeatedly stalling, the mechanic discovered there is a fuel leak causing the fuel injectors and fuel rall to not get proper fuel injection. The mechanic found a manufacturer’s recall for the make, model, and year of my car. My car’s VIN# says this particular car is not affected. However, the exact issue is presenting in my car, which can cause significant engine damage. It’s believed my car, with the same make, model& year, is indeed impacted by this issue. My VIN should be considered to be included to have this recall.
While driving the vehicle a message is constantly required to acknowledge an SOS inoperable system which can be dangerous while driving. Mercedes ME Brace no longer supports the system due to being an obsolete system 3g network. The dealership requires the system to be disabled by deleting the software or removing the component to fix the issue of SOS being inoperable at a cost to the customer.
Unknown or Other
Filed Mar 2, 2024CA
While driving the vehicle the system shows SOS as inoperable and requires constant acknowledgment by the driver while the car is in motion. This is a safety issue especially when driving and the driver loses focus on the road, it removes the digital speedometer and has to acknowledge the system error and potentially can be in an accident when not focusing on the road. Mercedes mbrace no longer supports the system due to an obsolete 3g system that is utilized causing the system to show an error as SOS inoperable. There is no software service patch to fix the issue of lost connectivity that is no longer supported by Mercedes. The dealer ship recommendation is to troubleshoot and repair that cost the customer to pay out of pocket even though this is not supported and no longer can be used as a system. Or to completely rip out the system
Engine
Filed Nov 15, 2023IN
I was driving on the highway and when I stopped because there was traffic my car completely cut off. Screen and display went back and then it came back on and went into neutral and when I went to shift gears and try to change into drive it would not allow me to change gears. I had to turn the car off and turn it back on. THIS WAS ON THE HIGHWAY!!! This happened 2 times on my way home. I have a 2016 Mercedes my coworker has the same vehicle but the 2015 model. She has the SAME ISSUE. Her car is in the shop now and the mechanics are trying to see what the issue may be and I have an appointment at the end of the week. I have looked this issue up and there are TONS of people reporting this issue and I cant believe there is no recall! This is beyond dangerous and someone could die because of this. My coworker brought it to my attention and if we didn't drive the same vehicle I wouldn't have looked into this. However its NOT a coincidence that we both have Mercedes same make and model that cuts off and goes into neutral when driving.
Power Train
Filed Oct 13, 2023DE
Rear differential failed at 55,000 miles. Mercedes-Benz of Lafayette IN last had possession of the part. In a high-speed turn, this could result in loss of control of the vehicle. The differential was replaced at the owner's expense, and the failed part was left with the dealership. I am aware of numerous reports of premature rear differential failure in this model (after the fact). There was an occasional thunking noise during turns that the driver (my son) did not think anything of. The vehicle has been meticulously maintained. Within the week the vehicle was serviced and the rear differential needed to be replaced. No warning lights were present.
Power Train
Filed Sep 26, 2023FL
The vehicle change's gears and automatically switch to neutral while driving. I almost had a major accident on the interstate. This happened several times and the last time it happened was on September 23rd. The first time the incident happened I was told that it was a sensor in the car and was charged $700 and 4 days later it happened again. I took the car in again and now I am being charged for a new valve body in the transmission and a battery replaced aux battery. In my opinion that is a default not a maintenance issue and I should not have to pay for this, and Mercedes should have a recall on this because it can cause a very serious accident. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
No unusual pattern of severe incidents in the complaint record.
Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.
Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.
Most recent recall on file: Dec 15, 2023. Source: NHTSA Office of Defects Investigation.