Transmission Park Selector Switch - F305-, REMOVING AND INSTALLING: Notes

WARNING: This page is about a different car, the 2009 Audi Q7, 2008 Audi Q7, and 2007 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Transmission Park Selector Switch -F305- consists of two micro-switches. The two micro-switches create the signal that the electronic ignition key removal lock needs to release the key only when the selector lever is in the P position.
The first micro-switch is closed when the Shift Lock Solenoid -N110- is not active when the selector lever is in "P" (brake pedal not pressed) and also the selector lever manual release below the ashtray is not actuated.
The second micro-switch is closed when the button on selector lever handle is not actuated in selector lever position "P".

The Following Points Must be Observed Before Replacing Transmission Park Selector Switch -F305- :

Both micro-switches are switched electrically in sequence, that is, both switches must be closed for ignition key to be removed. Check the micro-switch using Guided Fault Finding Vehicle Diagnostic Tester.
An electrical test on the micro-switch is also possible. If a continuity test is performed with a multimeter, note that in this case, there is a resistance value of approximately 470 Ohm when both switches are closed.