Auto dimming rear view mirrors

Ashy>>

Registered User
Hi everyone.

My rear view mirror was knackered with the liquid bleed.

Just letting you all know that the S4 cabriolet one is a direct replacement if anyone has a dodgy mirror and struggling to find a replacement.

Mine arrived yesterday, 2 minutes to remove old one and fit new one.

Happy days, can finally see behind me
 

<tuffty/>

Badger 5 Edition...Its all about the flow...
Staff member
Moderator
You may want to be a little more specific on the part dude as the later cars had a different version with a rain sensor

A part number would be useful or chassis designation/model year(s)

<tuffty/>
 

syncro

Registered User
I used a USA spec one from a b6 s4 with compass, it has that light sensor I plan on using with an auto light switch
 

S3JGX

Registered User
I used a USA spec one from a b6 s4 with compass, it has that light sensor I plan on using with an auto light switch


How does the compass work? Is anything else needed to be wired in or is it plug and play
 

Dohcwp

Setting the Standard
because i always go againsts the grain i fitted one from a Hyundai Tucson in my 8l a few years ago, bottom line is gentex makes about 90% of the auto dip mirrors for manufacturers and only the mounts are different

auto-dip-jpg.108033
 

<tuffty/>

Badger 5 Edition...Its all about the flow...
Staff member
Moderator
Anyone got the wiring diagram handy for this? I did have it at one time but seems to have gone astray...

There are 4 wires from memory... I was just planing to wire it for power rather than sort out the reverse switching etc...

<tuffty/>
 

<tuffty/>

Badger 5 Edition...Its all about the flow...
Staff member
Moderator
So rolled the dice on a mirror off eBay for a Tucson... it was £20 delivered so seemed worth a punt

Screenshot 2020-09-16 at 13.45.53.png

Screenshot 2020-09-16 at 13.46.30.png


Will pop out to the car later to check fitment on the mount... need to find a wiring diagram too unless @Dohcwp has one kicking about

<tuffty/>
 

Dohcwp

Setting the Standard
im not exactly 100% sure but i think i only used the white wire and the black one, it was 4 years ago and i never documented it as i thought i would be the only person that would go and fit a hyundai mirror in an Audi.

i only did as it was cheap it was extremely close to the shape of the audi mirror, and audi parts are 10x more expensive here in SA.

out of the 5 wires one should be for a reverse signal, and 1 for auto headlights as the tucsons came with auto headlights. (none of the colours or pinouts matched for any of the gentex fitment diagrams that i found) but black and white does power up the compass and the auto dip does work

20161003_222340[1].jpg



This is how i mounted it, i used pratley 123 quickset (it is recommended for interior mirrors) and it works, its been mounted for 4 years now, i cant find my wire cover, but you will have to trim that with a dremel for a neat fit, once the mirror is fitted you can hardly see the original audi mirror mount on the windshield.

IMG_20200916_212246[1].jpg
 

Dohcwp

Setting the Standard
closest to the tucson wiring

2012-07-10 18.59.08.jpg
 

<tuffty/>

Badger 5 Edition...Its all about the flow...
Staff member
Moderator
On first look it seems the mounts ball end is larger on the new mirror vs the original auto dipping audi one... not sure if the newer ones like Ashy fitted are larger... I assume they are...

Thanks for the diagram... I'll get it running on the bench then remove my current mirror and see what I can engineer... disc cutter and a welder may play a part in this lol

<tuffty/>
 

<tuffty/>

Badger 5 Edition...Its all about the flow...
Staff member
Moderator
So it runs on the bench fine thankfully... goes dark and everything..

First hurdle...
Screenshot 2020-09-19 at 18.27.43.png


Hyundai on the left, Audi on the right...

I have a plan... its been mostly executed :)

Pics to follow... (will add to my build thread too)

<tuffty/>
 
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