How's it going everybody,
I have had a gauge cluster issue with my 87' 325is since I got it a bit more than a year ago. Neither the tach, or the econometer work.
The po suggested that it was the si batteries on the service indicator board in the back of the cluster. I replaced the si board with a refurbished unit, with no luck. I then replaced the tach and econometer gauge itself, whic also did not fix the problem. The po said the tach had 'just gone out', so based off my research it seemed most likely to be the si batteries in the cluster.
Around this time I started my s50 swap, and decided that I would just hope the tach magically worked after the swap, and not waste another second thinking about it. Here we are post swap, and my initial idea was that a wire had rubbed and shorted somewhere, which seemed likely after I found the cruise control wire rubbing on the firewall with several wires showing fresh copper. (Caused cruise control to act super funky, and the engine to go up to around 3-4k rpms randomly) :nice:
However, the guy who made my harness adapter ( I wish I had gone with someone on here so badly) said that I might have to splice the tach wire into one of two wires he had exposed from the c101 adapter. I checked and have only found the 'e' model cars needing tach signal through the c101.
Any ideas?
Thanks guys
I have had a gauge cluster issue with my 87' 325is since I got it a bit more than a year ago. Neither the tach, or the econometer work.
The po suggested that it was the si batteries on the service indicator board in the back of the cluster. I replaced the si board with a refurbished unit, with no luck. I then replaced the tach and econometer gauge itself, whic also did not fix the problem. The po said the tach had 'just gone out', so based off my research it seemed most likely to be the si batteries in the cluster.
Around this time I started my s50 swap, and decided that I would just hope the tach magically worked after the swap, and not waste another second thinking about it. Here we are post swap, and my initial idea was that a wire had rubbed and shorted somewhere, which seemed likely after I found the cruise control wire rubbing on the firewall with several wires showing fresh copper. (Caused cruise control to act super funky, and the engine to go up to around 3-4k rpms randomly) :nice:
However, the guy who made my harness adapter ( I wish I had gone with someone on here so badly) said that I might have to splice the tach wire into one of two wires he had exposed from the c101 adapter. I checked and have only found the 'e' model cars needing tach signal through the c101.
Any ideas?
Thanks guys