Dash Rheostat Sick

as400

as400

Zorg Guru (III)
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Joined
Dec 16, 2017
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138
Touch it and it all goes dark, touch it again and springs back to life albeit rather dimly.

I like twiddling with it so not after a wire jump fix, worth buying a replacement unit off the Bay or do they all do that Sir?
 
Why don’t you remove it and inspect? Maybe a bit of electrical contact cleaner spray might sort the problem out. Worth a look before buying a replacement.
 
It's a good practice to wipe those reostats occasionally back and forth to keep them clean.
 
I'll have a go at removing it then, maybe a spider has died on it or something obvious.
 
If you are replacing I would bite the bullet and get a new one from BMW, I did this for my M following the thread by @pgunter, it was cheaper from BMW than online, was about £95 fourish years ago.
 
I second what Niall has said, you are never sur what younare getting from e bay. BMW do sell on e bay though. It is a simple enough job.
 
That sounds like the internals are crumbling - that switch quickly becomes a fire hazard. Don't just spray it with contact cleaner, replace it.
 
Either replace it or modify it. It is quite easy to modify it and bypass the dimmer with a solid wire. It just means that your lights are at full brilliance all the time.
 
As Nodzed suggests it's worth a peace of mind getting a new one. Mine actually caused a fire in my zed filling it with smoke while driving.
 
Worth bearing in mind that a rheostat is basically an adjustable short circuit. If in any doubt, bin it and get a new one. That’s what I did.

Tony.
 
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