walterweber1

Seat Formentor Hybrid Undervoltage Problem

I'm experiencing an undervoltage issue with my 2023 Seat Formentor hybrid. The car starts poorly, various systems are failing, and the lights are weak. The battery seems weak when starting the engine. I suspect a heavily discharged or defective battery. Any ideas?

4 comment(s)

Sounds like what happened with my Formentor. Do you know what your battery voltage is when the engine is off?

I don't have the equipment to measure that myself. If you had a similar electrical problem, what was the fix?

Yep, same symptoms. It was the battery. Get it checked at a workshop. Think of it like a water tank that can't hold water anymore; even if the generator keeps pumping, it will be empty quickly. They can test the battery health properly.

I took it to the workshop and you were right, the battery was defective. Replacement cost me 290€. Thanks for the advice.

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