Car stalls

2005 MERCEDES BENZ ML350
240,000 MILES • 4WD • AUTOMATIC
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AMOLAK
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  • 1 POST
Twice now the car has stalled. All dash lights go out. No check engine light. First time I was making a slow left turn and this time I was going over a bump out of a parking lot. Then it starts up fine and drives no problem. Once it does starts it seems sluggish for a little bit. Any ideas?
Dec 28, 2018 at 6:10 PM
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JACOBANDNICKOLAS
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Hi and thanks for using 2CarPros.

Since the lights go out, the first thing I would be checking is for a weak or damaged ground. It sounds like something is shutting down everything. First, take a look at the first picture I attached, it is of the engine control module's ground location. I added that one because it shuts the engine off. However, the second is where I feel the problem may be. The second picture is of the primary "all activity" ground. Check these and let me know what you find.

I noted you indicated you are a mechanic. Most likely, you won't need these, but I am adding them in case you do.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

If you need anything else, let me know.

Take care and Happy New Year,
Joe

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Dec 30, 2018 at 9:11 PM