Quote:
Originally Posted by lemans 330d
The auto dip function is common on auto folding mirrors but maybe an option.
As for the outside dimming you need to have electrochromatic mirrors fitted as an option from factory these are hard wired to you interior mirror to work.
But on a negative note if you break a glass it's £230 per side.
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Previous M3 had electric folding mirror, dipping when reverse function, but didn't have the dimming feature.
Current M3 has everything above but has dimming feature which is very useful and I like it a lot!