MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: t4jo on March 21, 2026, 01:44:31 pm

Title: MK5 – Interior light stays on, battery drain
Post by: t4jo on March 21, 2026, 01:44:31 pm

Hi,

I have an issue with my MK5. Sometimes when I lock/unlock the car, the interior light (above rearview mirror) stays on and drains the battery.

Dashboard shows all doors closed. Problem happens only sometimes.

What I’ve done:
   •   replaced driver door lock
   •   replaced all wiring in driver door

Still the same.

When the issue happens, I hear an extra locking sound from the passenger side (like it locks twice). At that moment, the interior light stays on.

So I think it could be:
   •   passenger door lock (microswitch?)
   •   wiring in passenger door
   •   or comfort module

Also, question: how should the lock/unlock buttons on driver door work? (see picture)
On my car only the lower button (lock) works, upper button does nothing.

Any ideas?

Pictures: https://imgur.com/a/rKogUvA

Thanks 👍

Title: Re: MK5 – Interior light stays on, battery drain
Post by: GVK on March 21, 2026, 06:56:58 pm

We can't view Imgur in the UK any more  :slap: