Quote:
Originally Posted by kgie1217
I have done a search on here about retrofitting an OEM autodim/homelink rearview mirror to a Z4 that only came with the standard mirror. My question is it a direct swap and work like designed or is there a harness that has to be purchased? I saw in one post that you have to re-program the car as well. Any insight to this is appreciated.
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If you only have the standard mirror and no RLS (auto wipers/lights, VO 521) then this is fed with power via the roof light unit (Function Control Centre). This will also only have the one power feed. To have the auto dim and/or the homelink (and also the RLS if required) you need a second power feed to the light unit. So that's the first part of the mod. You then need new wires from the light unit to the mirror. Once all of this is completed you will then need a coding session, to code in Auto Dim (531) and Homelink (no VO code).
Take a look at this post....
https://www.e90post.com/forums/showthread.php?t=450516
