Auto Dimming Mirror - BMW M5 Forum and M6 Forums
E34 M5 Discussion 1988-1995 Sedan and Touring

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post #1 of 20 Old 11th January 2007, 10:45 AM Thread Starter
BURTON
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Auto Dimming Mirror

Hello all,

Does anyone have the info for connecting this up.

Thanks

Remember you can't race your house, you can sleep in your car!

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post #2 of 20 Old 11th January 2007, 11:41 AM
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You got DWA (the antitheft system, dunno, if its called DWA in UK too )?
Then the wiring is already in place.
In case you don't: just have a look. BMW put alot of wiring in our cars even if it wasnt needed (not like nowadays).

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Tobias
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post #3 of 20 Old 11th January 2007, 12:08 PM Thread Starter
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Got some wiring and the colours match but the mirror doesn't do anything do I need a relay aswell?

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post #4 of 20 Old 11th January 2007, 05:23 PM
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No, not really. Should work right away. What kind of mirror do you want to install? There are alot of different versions of the auto dimming mirrors? Also do you have the IR sensor in your mirror (for remote lock/unlock & anti-theft)?

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Tobias
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post #5 of 20 Old 11th January 2007, 05:27 PM Thread Starter
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Not sure what one it is.. Doesn't have the option to turn off or down the sensor of how much you want it to dim. Its not a IR version.

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post #6 of 20 Old 12th January 2007, 04:45 AM
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They used a few different mirrors. The harness connector is tucked behind the headliner under the left visor (on LHD cars, could be on the right on RHD cars), and if your car doesn't have the IR keyless/alarm system from the factory, it is easy to confuse the harness connector tied up back there for the mirror's connector. If there's any doubt, get a meter and test the leads against ground -- no alarm system in the car means the connector will be dead.

Early cars had auto dipping mirrors -- the harness has 3 wires. Ground, constant power, and headlights on. If you have one of these, wire the mirror up to headlights on/ground, else the mirror will constantly be on and draw current while the car is off.

Later cars ('91-'92) have the adjustable contrast mirror. I don't remember what the harness connector looks like, but it should be standard.

Even later cars ('93-'94, all E32 in the US) use a Gentex 117, which has no outward controls. This mirror uses a standard ~ 6 pin black connector, but again only 3 pins are used.

The last mirror that I know about is the one with the IR sensor built in, which also has an on/off knob I think.

I think you're probably looking at a gentex 117 -- there should be some text to that effect on the windscreen side of the mirror.

Last edited by kalevera; 12th January 2007 at 04:47 AM.
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post #7 of 20 Old 12th January 2007, 10:10 AM
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Mine has a sensitivity meter you can adjust. Its autodipping, what make is it - does anyone know?

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post #8 of 20 Old 12th January 2007, 02:22 PM
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my LE has an auto dimming rear view mirror and I hate it. makes identifying dibble nearly impossible at night, and allows you only to see the headlights of cars, and lose any other details. am i the only one that finds this the case???
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post #9 of 20 Old 12th January 2007, 06:09 PM
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I think it makes identifying rearward vehicless easier, as their lights dont dazlle you as much with this type of mirror.

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post #10 of 20 Old 13th January 2007, 11:07 AM Thread Starter
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Yeah I tend to find that I am getting dazzled alot by cars behind.

Remember you can't race your house, you can sleep in your car!

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