Knob on rear view mirror?
Posted: Wed Mar 17, 2021 9:58 pm
I have a 2000 model year sovereign with auto lights and auto wipers, the rear view mirror is auto dimmming , there is a small rotary knob on the back. what is it for? Many thanks
From memory I think it allows adjustment of the delay time for auto lights to come on, so that they don't come on immediately, for example, just because you've driven under a few trees in daylight. It only has an effect when the light switch is in the 'auto' position.
On the replacement mirror I had to get for my X308 and the later X350, this function was removed from the auto-dimming mirror.