Headlight/Dash Dim Switch

[Trundler]

All,

A simple query; when the switch is fully rotated clockwise, should the dash completely black out ... or be at its brightest? :?

Thanks

[AJL]

Brightest iirc

[Trundler]

Mine's turning too far then!

Cheers!!

[c_w]

Originally Posted by Trundler

Mine's turning too far then!

Cheers!!

It could be a faulty switch?

What I would guess happens is that there is a variable resistance, then at the end of the track it turns to a full contact for full brightness and this contact may not be working properly?

[jamesduncan]

Does anyone know the part number for the headlight/dash light assembly? Mine is activating the headlights by pulling it but has been very temperamental with adjusting the dash illumination. They now don't activate the dash, gear knob and button lights at all. I guess the variable resistor element has failed. Thanks in advance.

[Dave P]

Originally Posted by jamesduncan

Does anyone know the part number for the headlight/dash light assembly? Mine is activating the headlights by pulling it but has been very temperamental with adjusting the dash illumination. They now don't activate the dash, gear knob and button lights at all. I guess the variable resistor element has failed. Thanks in advance.

It may be possible to fix your current one,




https://www.z3mcoupe.com/forum/showt...light=rheostat

[Dave P]

Not sure without double checking which part number is used on the Euro M Coupe but part numbers can be found here,






https://www.realoem.com/bmw/enUS/sho...diagId=61_0144


not sure if its 508 or 506

[137699]

On one of the Roadster forums I've read & seen some horror stories relating to the headlamp switch and it's propensity to become a fire hazard when the innards start to break down - I'd very much go for a brand new one rather than trying to repair or buy a working used one.