Well given that soldering seems to fix so many VDO issues, I took my dash out today and re-soldered every connection I could on the side with fuel, economy, etc. The tach side has nothing to solder really.

Anyway. My fuel gauge is responding MUCH better. I think its still off though. I was getting a fluctuation of about 1/16th of a tank. About a needle's width. But it no longer jumped from over a half tank to a quarter and back again. Next time I fill it up I will get a better idea of where it stands. I was just wondering if the fluctuation is normal or if I should go in and solder again. AC was not on, incase someone asks about power draw.

Also I re-soldered every connection on the light dimmer switch. The dash and in car switches sure seem brighter. I can actually see they are on in the day light. At night I will have a much better idea on how much/if they are indeed brighter.

Overall an easy job.

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1991 560 SEL / 185k miles
1992 750il / 17k miles - project car