Warning light "coolant too hot shut engine off" comes on repeatedly and this is unable to be fixed. Light comes on while vehicle is in motion. Was told by mercedes this was a faulty warning light. Yesterday this came on and my engine shut itself off while the vehicle was in motion on a busy street. I was almost hit by another vehicle as I lost power to the car on a main road. I barely rolled into a parking lot. Could have been a horrible (fatal) disaster had I been on the freeway. "malfunction" "see operator's manual" and "48v battery see operators manual" all came on within rapid succession before the engine shut off on me.
2020 Mercedes-Benz GLE 450 electrical complaints
Page 2 of 2: complaints 11 to 14 of 14, newest first, as owners wrote them.
Sudden acceleration - electrical system failures- 1) 03/21/20 complete electrical failure - all warning lights, exterior lights & brake lights stuck on, then would not start after local shopping trip-odometer 754 miles - vehicle towed to dealer - 'reprogrammed'. 2) 06/18/20 active speed control-cruise control (which reads speed limit signs and adjusts speed) was set at 50 MPH - suddenly began to accelerate to 80 MPH. Odometer 1641 miles. 3) active speed limit control often reads frontage road speed limit signs while on main highway, initiating braking. 4) active speed control when on cruise control will apply brakes when using turn signal for lane changes. 08/31/20-09/04/2020 returned to dealer- odometer 2361-'reprogrammed'. 5) 09/19/20 active speed limit control set at 15 MPH suddenly began to accelerate to 80 MPH. Odometer 2512. Was able to regain control by brake application to release cruise control after vehicle initiated hard acceleration without any driver input and had reached 30-35 MPH. Same as 06/18/20 similar incident. Dealer was advised and 'updated software' mercedes benz-grapevine, tx invoice 511097. Mercedes gle 450 date of mfg. 10jan2020 - leased 25jan 2020.
Driving down the highway at 70 MPH and '48v battery malfunction' warning goes off, along with a yellow check engine light. A few seconds later a 'coolant' error message pops up and a red check engine light comes on. Car looses power completely and I'm unable to accelerate at all. Call flashes a message of 'pull over and turn the engine off'. Fortunately no one was behind me and I was able to coast safely to the side of the highway before the car stalled completely. Found out through several blog posts multiple other 2020 gle owners are having the same safety issue and there has been no recall by mercedes-benz and no resolution for the issue. Vehicles are spending months in the shop and eventually being bought back by the manufacturer or dealership. This is an incredibly dangerous issue to lose all power and control of the vehicles speed. I'm lucky no one was on the road near me when this happened, otherwise an accident almost surely would have occurred. Mercedes should be forced to address this safety issue immediately.
Command control unit is faulty affecting navigation, voice control, bluetooth, and vehicle apps. Issue was present at the time of purchase and service technicians have been working on the issues for over a month. Issues are present when both stationary and driving. May affect other electrical and driving systems.
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