Boot latch wont engage

[grahamjf]

Hi All

For the last few weeks I have had issues with the boot lid not catching shut, took the liner off the inside of the boot lid, removed the locking mechanism and took the cover off.

The internal pin that opens the catch was not fully retracted stopping the lock from shutting properly. the motor inside the boot catch was not retracting the pin fully, 

so thought in might be a problem with the electrical connector (3 pin model) removed the terminals from the plastic connector and cleaned them.

But it is still not letting the boot latch properly close causing the warning to show on the dash. It seams to work intermittently, it worked fine after cleaning the electrical connector, but the next day opened the boot with the handle and it wont lock in place again.

Any help on this matter would be much appreciated. 

Audi A4 2005 
2.0 TDI Saloon

[Trevor]

I would say that by the sound of it, electrical connections is where the problem is.

Sometimes, twisting the wiring connector/loom 360 degrees so that there is some biasing on the terminals works or at the very least works long enough to establish a diagnosis.

Keep us informed of any developments