oliverlight7
Citan EV high voltage system error
Summary of the thread
A 2023 Mercedes Citan Electric was experiencing a high-voltage system error, causing the motor to randomly shut off and reduce engine power. The error memory indicated a potential battery drain or defective battery. A similar issue was resolved by identifying a faulty battery module, which was causing the problem. The solution involved replacing the defective module, which fixed the high-voltage system error.
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4 comment(s)
oliverlight7 (community.author)
No recent work at all. That's what's puzzling! Did yours cut out completely, or just limp along?
ralfbeck82
Mine was cutting out completely. It turned out to be a faulty battery module causing a massive battery drain. I'd get it checked at a workshop quickly before it damages something else.
oliverlight7 (community.author)
Thanks! I took it to the shop, and you were right – a defective battery module was causing the high-voltage system to fail. It cost me 290€, but at least it's fixed. Thanks again for the help!
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MERCEDES
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CITAN
ralfbeck82
That sounds familiar. I had a similar high-voltage system issue with my Citan. Has any work been done on the battery or charging system recently?