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DISCUSSION => Interior => Topic started by: 3seriesNut on May 06, 2009, 03:41:07 PM

Title: speedo quit!
Post by: 3seriesNut on May 06, 2009, 03:41:07 PM

my speedo started going nuts a few days ago. when i would down shift it would bounce of 0 then back to speed. then today its not working at all.  

is there a speed sensor in the rear or is the guage shot?  if it is shot would the speedo from a 325 work? it looks like its a motherfucker getting to the gauges tho :(

Title: speedo quit!
Post by: ak96ss on May 06, 2009, 04:18:13 PM

Speed sensor is mounted through the rear differential cover - the wires have a habit of breaking back there. I'd look at that first.

Title: speedo quit!
Post by: 3seriesNut on May 06, 2009, 04:44:02 PM

thanks john. after looking at the scematics i found the speed sensor. its raining again today so im not messing with it. my GPS has a fairy accurate speedo in it.

Title: speedo quit!
Post by: 1991 E30 M42 on May 07, 2009, 02:52:55 AM

did you try smacking your dash just above the cluster, it works every time for my coolant temp sensor

Title: speedo quit!
Post by: 3seriesNut on May 07, 2009, 05:07:47 AM

does nothing. im thinking its the speed sensor wiring.