A6 Front Door Open Sensor

[martinjpainter]

Hi,

I have a 2001 "51" plate A6 2.5TDi Avant Quattro Sport. When I open the driver's door, the car does not know it has been opened, but it recognises all other doors opening, with a picture on the dash and the interior lights etc.

I had a quick look but I could not find an obvious switch, which would be activated by opening the door. How does it work?

Regards,
Martin

[lonky]

switch is inside the door lock.

each door lock has two micro switches, one triggers courtisy functions, such as the dash, and floor pan lights , the other security functions.

Other famous item that causes this fault is water in the footwell after the drain holes in the pelumn chamber become blocked