What 60 owners told NHTSA about the 2022 Mercedes-benz Gle-class Hybrid

Check engine light came on. Called dealership on a Thursday and again on Monday after it stayed on all weekend. Was told to bring in vehicle for diagnostics and to have a ride home. Half way to the dealership the car spuddered and I had to coast to the shoulder of the road. After a few minutes, I restarted the vehicle and drive slowly to the dealership, barely making it it the shop. The service advisor indicated it could be the cylinder head even before running diagnostics because it had happened to numerous other customers. It was a defective cylinder head. The repair bill was over $10,000 but Mercedes offered a $3,500 assistance credit. After doing some research on the internet, this appears to be a widespread issue.

NHTSA ODI 11707431

Vehicle has issues maintaining power and attempts to stall in traffic. It also shakes violently at idle. It was diagnosed by the dealership and determined that the cylinder head was damaged and needed to be replaced for $7200.00 since there was no warranty. Vehicle was purchased used and the Issue was noticed 6 months after purchase at 70-80 thousand miles. After researching the issue, this appears to be a known problem with the 4 cylinder Mercedes vehicles, but only specific models were covered under the extended warranty for replacement.

NHTSA ODI 11697813

The contact owns a 2022 Mercedes-Benz GLE350. The contact stated that while driving on two occasions at undisclosed speeds, the vehicle went into LIMP Mode and lost motive power. The vehicle failed to exceed 10 MPH while driving. The check engine warning light was illuminated. The vehicle was taken to the local dealer where it was diagnosed that the engine needed to be rebuilt or replaced. The vehicle was repaired. The manufacturer was contacted and filed a claim. The failure mileage was approximately 10,000.

NHTSA ODI 11658877

CYLINDER HEAD. - THE CAR MISFIRES AND WHILE DRIVING THE CAR SLOWS DOWN WITHOUT NOTICE. THE CAR ALSO SHAKES WHILE IN IDOL MODE. YES THE PROBLEM HAS BEEN CONFIRMED AT THE DEALERSHIP. NO THE VEHICLE HAS NOT BEEN INSPECTED THAT I AM AWARE OF - BUT IT SHOULD BE BECUASE I HAVE DONE RESEARCH AND MERCEDES HAS SAID 2019-2022 MERCEDES HAVE CYLINDER HEAD RECALLS - IT JUST DOESN'T INCLUDE THE 350GLE MODEL WHICH IT SHOULD BECUASE THE FORUM I AM ON SHOWS THAT IT IS A KNOWN ISSUE AND ALOT OF CONSUMERS HAVE THE SAME PROBLEM AS ME. YES THE CHECK ENGINE LIGHT HAS COME ON AND THAT IS WHY I TOOK IT TO THE DEALERSHIP TO SEE WHAT WAS WRONG. MERCEDES SHOULD RECALL ALL VEHICLES THAT HAVE A CYCLINDER HEAD ISSUE NOT JUST THE MODELS THAT HAVE LISTED NOW BECUASE THE ISSUE IS IN MORE THAN JUST THOSE VEHICLES! THE CAR POSES A ISSUE AND A SAFETY ISSUE BECUASE THE CAR CAN STALL IN THE MIDDLE OF THE FREEWAY CAUSING MAJOR SAFTEY ISSUES! I have photo's I tried to upload but it keeps giving me errors and won't let me upload to this case.

NHTSA ODI 11643905

My wife was driving on [XXX] going ~70mph. Without warning the engine shut down and the vehicle decelerated. A message popped up saying “48 volt malfunction”. A google search indicated the car should not be driven as it could result in a fire. Note the Mercedes dealer in Centerville Ohio completed recall campaign: 2024040002 in May, 2024. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11637585

Nov. 7, 2025 - After returning home around 4pm, I parked the car in my garage, and entered my home. Due to the sound of the fan motor which stays on after you shut off the car, it is possible that the engine was still running when I thought it was off. Please note that my garage is attached to my home. Around 1am I awoke and went into the bedroom on the far side of my home which sits directly above my garage. When I entered this room I heard a noise, like some kind of motor but at the time I had no idea what this was. As I walked through my home, went downstairs and neared the doorway to my garage when I realized the loud noise was coming from my garage. It was not only frightening but extremely concerning and come to find out my Mercedes was running, in fact it had been running since I got home earlier in the afternoon. Please note that one of the most critical things that happened is that upon opening the door to the garage I was exposed to severe carbon monoxide fumes. I discovered the car sitting there, running, for no reason at all, the outside was very hot to the touch and I panicked. I was breathing in fumes that could affect my life! I ran to the kitchen, grabbed a fan, opened the garage doors and immediately went upstairs to see if my daughter was okay. As you know carbon monoxide can kill you and I did not know why in HECK this was happening. - This car is still relatively new with low miles. - This vehicle is also supposed to be equipped with significant safety features and it is difficult to exit the car without alarms sounding and appearing on the dash telling you the car is still on. - Mercedes, however, already made me take this car in twice to address multiple recalls affecting safety! I also had it serviced not less than 3 weeks ago. - Mercedes is completely skirting/ignoring the critical issues with this vehicle and has sent me a FORM letter denying assistance. There could have been 2 fatalities and I have been ill since this happened.

NHTSA ODI 11634673

The contact owns a 2022 Mercedes-Benz GLE450. The contact stated that while driving 50 MPH, the vehicle lost automotive power with several unknown warning lights illuminated. The contact pulled over to the side of the roadway, restarted the vehicle, and continued driving. The vehicle was taken to a local dealer to be diagnosed; however, the dealer found no cause for the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 20,000.

NHTSA ODI 11631298

While driving on the HWY the vehicle started to loose acceleration and make some strange noises. When I tried to give it gas I heard a loud pop and smoke starting coming out of the hood of the car and the exhaust.The car shut off in the middle of the hwy. With the moment left I got the car over 3 lanes to the shoulder. There were two of in the car that were at risk if this failure would have caused an accident. When I heard the car making noise and before the loud pop. I went through the cars on board computer to see if there were any maintenance messages or if the car had low oil or tire issues. All the on board messages were good and nothing indicated there was an issue. Then the pop and car shut down came suddenly. I had the car towed to a Mercedes dealership. The car is 10k over the standard 50k warranty. The Mercedes dealership indicated that a rod went through the engine the car needs a full engine replacement and new front axle. They asked me to provide them with proof of car maintenance which I did. The car was serviced regularly for oil changes and filter changes though with Mercedes parts. The manufacturer is unwilling to look if there is a defect that caused this since it is out warranty and wants the repairs paid out of pocket.

NHTSA ODI 11619864

Even when new several times I was unable to start the car through the app or even physically. The self driving failed, but was repaired and about 2 months ago I got a recall notice to immediately take the vehicle , stop driving it until fixed. Feldman Motors in Bloomington MN was who I immediately contacted. The man I spoke to said simply that despite the recall the dealer would not have the parts available for at least 2 months despite the letter from Mercedes stating that they were already available. He refused to schedule an appointment. I have only that vehicle and he also refused a loaner at Mercedes expense. To date I have never been contacted again but today I got another recall notice . I simply do not know what to do except complain. Another dangerous situation happened when the powered tailgate to the SUV opens for no reason and it let to the rear contents falling on the highway. I had to stop at considerable danger to myself but Feldman motors claimed that they won’t do anything unless it happened in front of them. Simply put it happens suddenly, not all the time and I obviously cannot replicate the issue in front

NHTSA ODI 11613281

The engine stalls for no reason. The transmission does not fully downshift in certain conditions, causing the engine to stall.

NHTSA ODI 11574511

Vehicle fails to accelerate when the accelerator is pushed all the way to the floor. Maximum acceleration is 20-25 mph. The vehicle is available for inspection upon request. My safety is greatly put at risk in normal traffic conditions due to the inability to accelerate. I am also unable to drive on the highway or anywhere requiring higher rates of speed. I am also unable to quickly remove myself from a dangerous traffic situation where acceleration is required. The dealer confirmed the problem but has been dishonest about the source of the problem and whether it has truly been repaired. First they said it was a software problem that they could not fix. Then they said it was a hardware problem. They replaced the hardware, but have never confirmed that it was not also a software problem. The vehicle has been inspected by the dealership. The engine light came on. This first appeared about 3 days before the problem started.

NHTSA ODI 11559494

On March 30, 2023, my 2022 AMG GLE 53 check engine warning light came on. I immediately called Capitaleurocars the Mercedes Benz dealer. On May 1, 2023, according to the Capitaleurocars service order, the technician noted the following: "found the check engine light on" then performed "a guided test for fault code (P146264) and found fuel pressure and temp sensor passing test." The technician wrote "Checked PTSS cases and checked for related LI documents. Found LI-47.50-p-070263 which states that software is under development for this issue. no software available at this time. Cleared code and released back to customer." Capitaleurocars service department could not tell me when the software update would be issued, but I would be notified as soon as it was released. I was also told that on September 6, 2022, a temperature sensor was replaced on the vehicle due to the check engine warning light being on. I asked if the issue on September 6, 2022, was the same issue I was having and I was told yes, it was the same fault code. So, approximately a month before I purchased the car on October 1, 2022, the check engine warning light was on and a temperature sensor was replaced. The Capitaleurocars service department suggested I call MBUSA Customer Service to get more information about the software update. I researched the LI document number and found that NHTSA had received a complaint on 06/25.2020, with same the LI 47.50-p-070263 document number and fault code P146264. The complaint to NHTSA was on a GLE and noted as follows: Complaint: Check engine light active and FC P146264 Temp. and pressure sensor B4/7 is stored in engine control unit and tank control unit. Cause: Software parameter in Fuel pump control unit Remedy: Update SW in FSCU control unit Capitaleurocars Service Department did confirmed that the fault code found on my car on May 1, 2023, was the same as the one reported to NHTSA on 06/25/2020.

NHTSA ODI 11541024

I am writing to report a problem with my 2022 Mercedes GLE 350 4Matic. A metallic ticking noise originates from the engine compartment during acceleration, with the noise diminishing as speed increases. This effect creates a deceptive sense that the issue disappears at higher speeds, potentially encouraging faster driving. Mercedes-Benz dealer technicians acknowledged the issue following an inspection of the engine and turbo. Despite this, they recommended reporting the problem to Mercedes Corp. and maintaining that the sound is normal, even suggesting it is common in the GLE model. Given the potential implications for road safety, I kindly request your investigation into this matter to discern whether it's an isolated or systemic issue. I am prepared to cooperate fully with any necessary inspections or inquiries. Thank you for your prompt attention to this issue.

NHTSA ODI 11524942

Radiator failed after driving on the highway. Radiator failed due to an item passing through the grille in the normal course of driving causing coolant to leak from car. Low coolant warning light indicated that coolant was low. Car was inspected by dealer who determined that an external influence(road debris or a small rock) passed through the front car grille and striked the radiator causing the radiator failure. Manufacturer was notified of the incident regarding the radiator failure.

NHTSA ODI 11517740

1. 48 volt battery electrical system malfunctioned. car shut down on the road while driving. 2. could have been rear ended if on highway and there was no shoulder 3. dealer had car for a week and serviced electrical components and updated software. 4. no police. vehicle serviced ny manufacturer 5. eceived many warning notices when it happened - 48 volt battery , coolant too hot, engine overheating, etc. no prior warnings. first occurrence 1/4/2023, second occurrence 2/21/2023 issue reocurred

NHTSA ODI 11508483

While driving this vehicle on the way to Los Angeles, the engine suddenly stalled without warning. I was in the left most lane going about 70MPH. The car began to slow and I almost got hit four times while trying to make my way over to the shoulder. I could've been seriously injured or killed. This vehicle is brand new and I've only had it three weeks. There was no warning indicator or lights that came on. The engine just stalled without warning and wouldn't restart. It was a miracle I made it to the side of the road as vehicles including tractor trailers whizzed by. Once on the side of the road, the vehicle would restart momentarily and the whole car would shake and then shut off. The vehicle had to be towed to a Mercedes dealer. Incredible safety risk. I don't feel comfortable driving this vehicle again. I'm going to pursue getting my money back.

NHTSA ODI 11502971

While driving at highway speed, 48V system malfunction warning light illuminated, then vehicle coolant/overheat light. Vehicle lost all power, or possible entered a "limp" mode, and I was able to coast to a stop. Turned off vehicle. Checked underhood. No obvious overheating or leaks or other problems. Vehicle immediately restarted and has run fine since. This occurred in March 2022 with about 3500 miles on vehicle. Now has about 7500 miles. No further occurrence. I have not had the vehicle examined by the dealer.

NHTSA ODI 11483261

The contact owns a 2022 Mercedes-Benz GLE450. The contact stated while driving approximately 50 MPH, the battery malfunction warning light illuminated along with other unknown warning lights. The contact stated that the vehicle stalled and coasted to a stop. The contact stated that the vehicle lost power steering and braking functionality. The contact was able to shift the vehicle into park(P) and restart the vehicle. The contact was able to drive the vehicle to her residence; however, after turning the vehicle off, the contact touched the hood and noticed that the hood was very hot. The contact had not taken the vehicle to a local dealer or independent mechanic to be diagnosed. The manufacturer had not been informed of the failure. The failure mileage was approximately 8,600.

NHTSA ODI 11483005

The contact owns a 2022 Mercedes-Benz GLE450. The contact stated while driving approximately 25 MPH, the vehicle independently stopped without driver input. The contact stated that the seat belt locked the two rear passengers in securely. Several unknown warning lights flashed quickly and then disappeared. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 3,535.

NHTSA ODI 11466374