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Mercedes AMG GT Hybrid Start Stop Problem

My 2020 Mercedes AMG GT Hybrid with about 24748 km has a start-stop problem. The engine shuts off, but I get a warning light and an error. It seems the automatic restart is failing. Could this be a battery issue?

4 comment(s)

I had a similar problem with my BMW. The engine stalling and warning lights sound familiar. It was a battery issue. Have you checked the battery's voltage lately? A heavily discharged battery can cause the start-stop system to fail. Has the car been sitting?

I have not checked the battery voltage. Do I need special equipment, or can I do it myself? The car has been driven regularly.

You can check the voltage with a multimeter, but if you aren't comfortable, take it to a workshop. Considering the error codes, a professional diagnosis is best. It sounds like a battery, but they can confirm and check for other causes.

Thank you for the advice. You were right, it was a defective battery and needed replacing. The repair cost 290€. I appreciate you sharing your experience.

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