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majakoch1

Sprinter electric engine fault code and reduced power

My 2022 Mercedes Sprinter with an electric engine is throwing a fault code and has seriously reduced engine power. Mileage is at 139934 km. My auto scanner shows a generic engine issue. I suspect it's related to chip tuning. Any ideas?

Summary of the thread

A 2022 Mercedes Sprinter with an electric engine is experiencing a fault code and reduced power, suspected to be related to third-party chip tuning. The issue likely stems from the engine control unit not receiving correct data due to the tuning. The recommended solution is to have the ECU re-flashed and the third-party tuning removed by a professional, which resolved the problem and restored normal engine function.

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4 comment(s)

RacerBecca

I feel your pain. I had a similar issue with my Sprinter, although it wasn't the electric version with reduced power and the check engine light. Did the chip tuning involve a third-party provider? That's often the culprit. What fault code are you getting exactly? Knowing that might help narrow it down.

majakoch1 (community.author)

Thanks for the quick reply! Yes, it was a third-party chip tuning. I don't remember the exact fault code, but it was something about the engine control unit not getting the correct data. What did you do to fix your Sprinter when you had this issue?

RacerBecca

Yep, sounds like the chip tuning messed something up. I had to take mine to a workshop. They basically had to re-flash the ECU and remove the third-party tuning. It’s a pain, but honestly, it’s probably the safest bet to avoid further damage. I'd strongly advise getting it professionally checked out.

majakoch1 (community.author)

Took your advice and went to a workshop. Turns out the chip tuning was indeed the problem. They removed it and re-flashed the ECU. Everything is running smoothly now. Cost me 180€, but worth it for the peace of mind. Thanks for the help!

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MERCEDES

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SPRINTER