9N3 electrical gremlins

[Cal844]

Hi folks

2007 Polo 1.4 S 5 door.

When I open the front drivers or passenger door the courtesy lights stays off, also I don't get the headlight on bong when door is open.
If I open a rear door or rear hatch the light functions as normal.

Where is the courtesy light switches located on these Polo's?
If it's on the hinge I'd like to try to clean the contacts up.


Any help or advice on what to test or clean is appreciated, I've just bought the car a few days ago so the trader has given me a 30 day repair window, I'd like to avoid the hassle of this though as it would be a 30 mile trip to return the car.

Thanks

Cal