Side door mirror
I think the memory is in a controller in the car.
The switch looks the same unless you have power folding mirrors.
You said discolored, you mean the glass? That would indicate dimming mirrors.
What model, what year and what options? (option codes are in the trunk on a sticker and/or in the owners/warranty manual.)
Yes the glass is discolored. It is a 2002 A6 Quattro, with power folding mirrors, heated leather seats with memory, and 6xl mirrors. Now I am guessing it does have memory with the 6xl option.
If you have anti-glare mirrors "dimming" the center mirror will have a light sensor in the upper center of the mirror, if the side mirror appears to have a double-vision effect with a different tint color generally the fluid in the mirror is displaced and you will see a black plastic trim around the glass.
If you have standard heated side mirrors generally you will see a copper film starting in the corner spreading out.







