Hi all.

I had an auto dim rear view mirror in my Mk4 Golf 150 GTTDI which the LCD leaked.

I've got a brand new replacement for a B5 Passat as an 'upgrade' (And I couldn't get one for the Golf in the correct colour!).

Unlike the Golf mirror, the Passat mirror has a switch, green LED on the front by the switch and two red LEDs under the mirror.

What are the switch/LEDs supposed to do/their purpose?

When the switch is pressed the green LED is either on or off (When pressed again), but the red LEDs are constantly on with the ignition on.