raphaelfox1
Seat Formentor Hybrid engine trouble
Summary of the thread
A 2021 Seat Formentor hybrid with 123,111 km experienced a complete engine failure, indicated by a check engine light. The owner suspected an engine control malfunction, possibly due to ECU failure or fuel injection issues, but also considered bad battery cable connections. After taking the car to a workshop, the problem was identified as poor battery cable connections, which were cleaned and tightened, resolving the issue.
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4 comment(s)
raphaelfox1 (community.author)
Interesting, thanks. What exactly did you experience? Was it a complete no-start, or was it struggling? And were there any specific warning messages related to fuel injection or ECU failure?
benjaminlorenz1
Yes, it was a complete no-start situation. Sometimes it would crank but not fire, other times nothing at all. I did see some fuel injection related messages, but it was all a bit of a blur. If you suspect the battery connections, check them thoroughly, but honestly, I'd get it to a workshop. Could be more serious.
raphaelfox1 (community.author)
You were right. I took it to the workshop, and it turned out to be bad cable connections to the battery. They cleaned and tightened everything, and now it's running perfectly. Cost me 155€, which I'm happy to pay to have it sorted. Thanks a lot for your help.
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SEAT
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FORMENTOR
benjaminlorenz1
Sounds familiar. I had a similar issue with my Formentor. The engine light came on, and it wouldn't start sometimes. Check engine warnings were all over the dash. Did you notice anything unusual before it completely failed?