Zitat von alpinab10biturbo
Gents,
One of the issues that came out from the first-start was the failure of the water-temperature gauge. I investigated this problem and checked all relevant connections, series resistance of both coils from the gauge, replaced the NiCd batt.
Ciao Raymond,
i had more or less the same problem after the restoration of my M5 E28.
My temp-gauge used to jump from left to right and find its correct position belonging to the real water-temp just rarely for a few seconds.
The temp-gauge needs to have a perfect mass-contact. As you might know, this is done over the two screws in the Cockpits back... were you fix the assembled the pieces with.
Depending in which month your car was build, the cockpit should have this two screws fixed on the mainboard. For having a good connection, there are two underplates with an height of around 5mm each. These are important!
My cockpit used to work well... apart from the temp-gauge. I dismantled the cockpit and screwed everything slightly less strong together... checked it out: no result. I screwed it again a bit harder... checked it out: BINGO!
Try it in that way. Due the tolerances that the cockpits pieces after dismantling and assembled again and again might have, this could be the solution for your problem.
In case you need a specialist for your CI-Board, send me a PN. In know a guy who is able to repair our old electronic-trash. His is in that point a kind of mother for E28/E24 drivers
Ciao!