|No diagram is required.
1 ) Press the existing switch in (push on the knob)
2 ) While holding it in, turn to the right. It will go a small amount and stop.
3 ) Pull gently. The switch will slide out.
4 ) Unplug harness at back.
5 ) Plug harness to new euroswitch switch
6 ) Slide back in
7 ) Turn left.
Under 60 seconds.
BTW, you don't need to pull the relay. You can also tape the pins on the back of the new switch. When I installed the Euroswitch in my 2004.5 Passat, I taped 'B' (pin 6, lights the DRLs when switch is off) and '56D' (pin 5, lights the DRLs with switch in first position).
Some cars need to have 'TFL' (pin 3) taped instead. Since TFL connects to nothing in my harness, I could have taped that as well.