Driver assistanceElectricalEngine
Filed Aug 5, 2023
Driving down a multi-lane highway at 70 mph, a 48V battery malfunction warning goes off as well as the yellow check engine light. A few seconds later a ‘coolant’ error alert pops up. SUV loses acceleration with power dropping from 70 mph to 55 mph to 35 mph. Another message displayed on screen warning me to “Pull over and turn the engine off.” Narrowly missing being hit from the back, I was able to coast to an upcoming exit into a store’s parking lot before the car stalled completely.
- NHTSA ID
- 11536714
- Incident
- Jul 30, 2023
Electrical
Filed Feb 27, 2023
The contact owns a 2021 Mercedes-Benz GLE450. The contact stated that on two separate occasions the vehicle failed to start on the initial attempt. The vehicle was towed to dealer who diagnosed that the firmware needed to be updated. The vehicle was repaired. The failure recurred a second time approximately 90 days later. The vehicle was towed to the same dealer who diagnosed that the battery needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 13,525.
- NHTSA ID
- 11509252
- Incident
- Nov 4, 2022
- Mileage
- 13,525 mi
ElectricalEngine
Filed Jun 26, 2022
Car shut itself off in rush hour traffic. Slight Smokey smell. Dash light indicating a 48 Volt problem. Got vehicle towed to dealership.
- NHTSA ID
- 11471032
- Incident
- Jun 21, 2022
ElectricalEngineExterior lighting
Filed Apr 23, 2022
2021 MB GLE 450 bought in April 2021, now approximately 8000 miles with two separate events of not starting. Cannot jump. Once 48V battery system updated (3 months ago), required tow to dealer. Now again at dealer with the same issue and recommended for battery change (last time was software update). Very unsafe, happened first time in public garage at night with no start, and second time in the morning when I was trying to go to work. Based on various blogs and class action law suit against MB in NJ, seems like MB is aware of 48V battery problem, and installed a bad batch of batteries. Frustrating to purchase $80000 car and learn that it is not safe at all, with possible malfunction at any time.
- NHTSA ID
- 11461858
- Incident
- Apr 20, 2022
ElectricalEnginePowertrain (other)
Filed Apr 3, 2022
Was driving down a 2 lane road at about 55 MPH, and a warning light message appeared on the dash and said "battery no longer charging" then another message that said "coolant overheating vehicle shutting down" appeared. And the car would no longer accelerate. So I had to pull over on a busy 2 lane road and turn off my car and turn it back on, and then the car was working normally again. This could have been very bad if it was on a multi-lane highway. My safety was put at risk. I took the Vehicle in, and they said they cleaned some engine contact points and this was because the car lost contact with the engine
- NHTSA ID
- 11459441
- Incident
- Feb 3, 2022
ElectricalEngine
Filed Sep 13, 2021
I was driving at full speed on the interstate (75mph) when the vehicle died completely. I had only seconds to maneuver the vehicle to the shoulder. There was no indication of a service issue with the vehicle prior to this incident. The car is/was approximately 2 weeks old, with about 500 miles of usage. Vehicle would not restart so I could attempt to get to a safer location.
- NHTSA ID
- 11432776
- Incident
- Sep 7, 2021
ElectricalEngine
Filed Jul 9, 2021
The contact owns a 2021 Mercedes-Benz GLE450. The contact stated while driving at various speeds the vehicle loss motive power. The 48V battery malfunction and coolant hot turn-off vehicle message were displayed on the instrument panel. The battery indicator warning light was illuminated. The vehicle was taken to the local dealer and diagnosed with a software issue. The contact was informed that the software needed to be updated. The vehicle was repaired however, the failure recurred. The manufacturer was not notified of the failure. The approximate failure mileage was 3,000.
- NHTSA ID
- 11424125
- Incident
- May 8, 2021
- Mileage
- 3,000 mi
Electrical
Filed May 14, 2021
THERE ARE NUMEROUS REPORTS OF THE 48V BATTERY FAILING ON MULTIPLE MERCEDES MODELS USING THE 6 CYLINDER WITH ISG ENGINE. MERCEDES SHOULD DO A RECALL TO REPLACE ALL 48V BATTERIES AS THIS PROBLEM MAKES THE CARS UNRELIABLE AND UNSAFE TO USE AS SOMETIMES THIS 48V BATTERY SYSTEM FAILS WHILE DRIVING.
- NHTSA ID
- 11416549
- Incident
- May 3, 2021
Electrical
Filed Dec 20, 2020
THE 48V BATTERY AFTER DRIVING NEW VEHICLE ONLY 230 MILES GOES DEAD. THE AUTO WILL NOT START AND CANNOT BE JUMP STARTED. RESULT IS BEING STRANDED ROADSIDE. REQUIRED A TOW. MERCEDES SAYS DEAD BATTERY (BRAND NEW) NEEDS TO BE REPLACED. BATTERY WENT DEAD ON DECEMBER 10. DEALER TELLS ME NO BATTERIES ARE AVAILABLE IN THE US. A BATTERY IS PROMISED FOR DELIVERY FROM GERMANY ON OR ABOUT JANUARY 11, 2021.
- NHTSA ID
- 11384271
- Incident
- Dec 7, 2020
- Mileage
- 230 mi
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.