2022 Mercedes-Benz GLE-Class Electrical System Problems

Check engine warning light came on. Called dealership and they could not do a remote diagnostic so they made plans to pick up the car which was about 2 weeks after the problem was alerted. See attached repair invoice. The problem was a known issue with the cylinder head compression leakage. “Removed cylinder head and disassembled to find excessive play in exhaust valve guides and abnormally worn exhaust value seats. Replaced cylinder head.” This issue impacted engine performance, including vibration and lack of acceleration. See attached letter to Mercedes which we have received no response.

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)

My 2022 Mercedes GLE450 had water intrusion from the an AC vent hose that was not 'fixed' properly by Mercedes after they issues a recall for ALL 2020 and 2021 GLE450's. It took 9 months, endless gaslighting from Mercedes that I flooded the vehicle myself, a failed state-sponsored arbitration hearing only to find out Mercedes did NOT properly diagnose the vehicle from the start. I had officially 'given up' after almost a year of fighting this was not my fault, only to drive disassembled passenger seat and floor area down to Mercedes... to see the vehicle dripping water right into where nearly $20,000 of electronics were compromised. Mercedes has since fixed the vehicle, under warranty, yet they did NOT tel lme anything until the day the vehicle was fixed that it would be covered under warranty. They keep this away from the local dealer and had a traveling technician work on the vehicle to keep it entirely under wraps. I genuinely hope Mercedes is held accountable for taking full advantage of their customers while admitting (at least locally) that the 'fix' for the previously recalled vehicles is inadequate. Water intrusion, causing shorting of electronics and potential fire is a MASSIVE safety concern and they need to not only be held responsible yet held responsible for the pain and suffering caused by gaslighting customers and KNOWINGLY committing insurance fraud by forcing their customers to file insurance claims after not properly addressing the recall.

The contact owns a 2022 Mercedes-Benz GLE350. The contact stated that after his wife placed the key fob in the interior of the vehicle and closed the door, the vehicle inadvertently locked the doors. As a result, the contact stated that his young child was locked inside the vehicle with no way for his wife to remove him from the vehicle. The contact’s wife was able to instruct the toddler how to unlock the vehicle using the key fob. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline. The failure mileage was 7,600.

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.

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

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.