Auto dip rear view mirror

[muffindell]

I understand the coupe 406 is sometimes fitted with a auto dip rear view mirror. I've seen a few of these go through ebay at a reasonable price. Can they be easily fitted to a normal salon model or is it more involved than that?

[DaiRees]

My estate's got one of them. It's electrochromatic, i.e. auto-darkening rather than auto-dipping. Never actually looked how it works, just content that it does , but I always assumed it needed a power source. If so this could be taken off the courtesy lights? Should be easy enough.....

Actually coming to think of it perhaps it doesn't need a power source.... could be "solar powered" like an auto darkening welding mask

[mjb]

EVIL things! I really don't like 'em - prefer to choose myself when to flick the lever based on more criteria than just the light level.

[neildavies]

Myself, I think it works brilliant. I think it was fitted to the SE coupe, not the S. To get it working, there's 3 cables, a positive, negative, and the third is from the reverse lights, so it doesn't dim when reversing. You can just make do with the 2 cables (pos & neg) and if it bugs you when reversing, there's a switch on the mirror itself.

[muffindell]

So, does this mean it would in effect (bar a little wiring to the interior light) be a direct replacement to the standard manual dip mirror? If it is I will have a look on e-bay to see if any are going through at a reasonable price.

[neildavies]

All I know is someone did it to a coupe, so the windscreen must have been the same.

[muffindell]

Well I am the proud owner of a auto dipping mirror! All I need to know which colour wire does what to enable the wire up, so guys - any ideas?

[neildavies]

I can find out later, if nobody else does in the meantime. What colour cables have you got?

[muffindell]

Hi guys, I now have chance to fit the mirror, but no one really answered my question to which cable does what. There are three wires - white, black and grey leading to the mirrior. I've had a poke around in the headlining and cant find a pre wired loom (LX saloon Hdi on a X 2000 plate). All I need to know which is positive and which is negative, there must be someone with a later (post 2002) haynes manuel with details of this?????

[muffindell]

Someone must have a wiring diagram for one of these mirriors in a later haynes manual or coupe, I don't want to start trying out various connections in case I bugger the mirror.

Mat

[Benner]

Your best bet is to stick a multimeter on it.

No chance for error then.

[muffindell]

I don't think a multi meter will help, I'm adapting something that isn't wired for my model 406. I need to know what wire would do what if it were originally wired in.

[Benner]

Ah, so you are wanting to know which is positive etc on the mirror not what is on the supply then.

Someone must know?!

[muffindell]

Benner, you are so right! I can't believe that no one on this forum can't help me, I'm getting sooooo fed up not being able instal it (

[Benner]

Welton has a D9 and may have a Haynes, so he may he able to help you there.

I've only got one for a D8.

Edit: Just thought, think his is a '99 so maybe not.