Has anyone experienced repeated 12V battery drain on a CUPRA Terramar (2.0 TSI)?
I’m trying to find out whether anyone else has experienced something similar.
I have a 2025 CUPRA Terramar 2.0 TSI (195 kW) with only ~4,400 km. The car has now completely discharged its 12V battery multiple times. When it happens, the car won’t even unlock with the key fob and needs a jump start.
It’s already been back to the dealer several times. They’ve:
- checked the battery,
- updated/re-coded software,
- sent logs to the factory,
- and even replaced the infotainment unit.
Unfortunately, the problem came back again, including during a family trip to Poland after the latest repair.
Has anyone had similar issues with the Terramar (especially the 2.0 petrol), or perhaps another recent VW Group vehicle with the same symptoms? If so, did you ever find the root cause?
I’d really appreciate hearing about your experience.