T5 Body Control Module faulty? Doors locking. Interior lights not on.

[stevan]

I have had exactly the same problem going on for the last couple of months in MY10 2L with 111,000km.Yesterday 500km from home I went in to pay for diesel at a roadside station and came back out to find my van all nicely locked up with the keys in the ignition! Luckily I had left the passenger window down for my dog.I had to climb in through there.Please let me know how you get on.I will investigate under drivers seat.

[aSimpleLife]

Sorry for the delay in answering. I have been living with the problem for the moment. I am also following up some other advice I received here about getting a mechanic that actually likes VW's...but it's a bit like having a family breakdown
For me I feel it is likely to be the drivers door lock actuator - why I say that - is I half following the advice - had a can of the contact cleaner - and with an extension sprayed it into ever crevice that I could find - a day or so after that the door stopped locking itself and the interior lights started coming on - but it took a little while - after a few weeks it seems to be returning to how it was.
Here's the links mentioned on the previous page;
Replacement door lock actuator; £25 vs £230?? - The Brick-yard
How to remove Door Card/Trim - Pics - The Brick-yard
How to remove Door Lock and Assembly Carrier - The Brick-yard
I'm off so see a VW mechanic for a general chat this week and I will be asking for his input also.

[stevan]

Hi, just wondering if you found the source of the problem?

[aSimpleLife]

For me I believe it was dirty sensors in the door activator.
They weren't working at all.
Then I emptied half a can of that sensor spray into every crack I could find (I wasn't feeling up to taking the assembly apart)
At first it seemed to make no difference.
Then the lights started coming on after a delay - then the delay got less - and now it is back to normal - for the time being.
So I am assuming that some of the spray eventually worked it's way into where it needed to get.
And with the lights coming on the doors are also not relocking

[aSimpleLife]

3 years down the track and the problem hasn't returned. It seems that sensor spray really did the job.