What did I do? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 01-21-2012, 07:15 PM
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What did I do?

Just got my first BMW a 89 - 325i and really think i'm going to like it after I get it sorted out. Anyway today I was doing some maintenance and planned to install a stereo as the old after-market cassette in the dash wasn't even connected (just there to fill the hole in the dash I guess). Anyway I pulled it out, then gently pulled out the stereo wiring to see what was what and quickly abandoned the idea of stereo swap today as I was short on time and the wiring color codes were different that what I've worked on. I then topped of the coolant and overfilled the plastic container causing a little antifreeze to spill. Since there are animals around I wanted to be sure none of them drank it and rinsed the drivers side (US) of the engine compartment. After starting the car I noticed that the tach and MPG gauges were dead. I checked the fuse box and saw that fuse #21 was blown and I replaced it. The tach now works fine but the mpg gauge is stuck at the maximum mpg.

I know better than to do anything electrical without disconnecting the battery but messed up and hadn't disconnected it until after I blew the fuse.

Question if it's more likely that I did something under the dash or if the water under the hood caused a short there.
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#2 (permalink) Old 01-22-2012, 06:37 AM
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Try disconnecting the Battery again, for an hour or so... Give the dash a smack


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#3 (permalink) Old 01-24-2012, 11:33 AM
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Thanks Dabsy

Das Gremlins appear to be at work. The gauge now works most of the time but varies wildly in it's accuracy. I'll try the disconnect on the battery.
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