After having to replace my BCM recently due to a component protection fault that couldn’t be cleared by the dealer, I’ve now got the same issue again:

 

Dim maxidot

Dim radio screen

No interior lights

 

However, this time if I switch the interior lights switch on, I get the tailgate open warning binging away at me.

 

I’ve noticed it randomly going off at me whilst driving in the past. Usually rectified by opening:/closing.

 

Could there be an issue with the tailgate lock/sensor which has triggered the component protection again?

 

 Central locking works fine.

Has the BCM been correctly coded and, even more important, have the (several hundred) adaptation channels been set correctly?

17 minutes ago, PetrolDave said:

Has the BCM been correctly coded and, even more important, have the (several hundred) adaptation channels been set correctly?

It was done by the dealer so I would have hoped so!