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post #2 of (permalink) Old 12th June 2008
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The reason why your dash dims is because your brake light is causing one of the tail lights to come on. i.e. when lights are on, dash illumination is lower.

I suspect that your rear stop light bulbs are dual filament with your rear tail lights. It is a common problem with dual filament bulbs.

Either figure out which one is causing the problem by removing them one at a time, or replace both as they are very cheap.

If it is not the above (which I will be very surprised if it isn't) then you may have an earth problem. Change the bulbs first though before worrying about this!

Why do today what you can put off until tomorrow...

Wanna see what I drive? No pics of the latest Passat, but you can see the Scenic II here and the CB1000R here!

Previous Passat here and Bandit here.
Currently in martin999's garage:
2011 (11) VW Passat 2.0 TDi SE + options in Island Grey, 2011 (11) Honda CB1000R in Pearl Cool White... oh and a 2004 (54) Secnic II 1.5dCi Dynamique in Ottoman Blue !
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