e30 m20 tempreture gauge not working!! not sensors

[Tom-s]

my tempreture gauge has stopped working, the gauge was showing a tempreture and flickering now and then but all of a sudden it just stopped! i have changed the temp sensors and thermostat, and cleaned up the earths on the instrument cluster and still doesnt work anyone had this issue or have an idea wha it could be?

[Brianmoooore]

Please try to post in the correct forum.
First check to make is to disconnect the C101 20 pin engine loom plug from its socket next to the fusebox, identify pin 4 on the body loom side, and use a piece of wire to connect that pin to earth.
What does the gauge do when the ignition is turned on?

[Grrrmachine]

Throwing parts blindly at the problem very rarely fixes them. Instead, have a read of this:

http://www.e30zone.net/e30zonewiki/inde ... ot_Working

[Brianmoooore]

Wiki has things in the wrong order. First port of call should be the C101, to determine whether the problem is on the engine electrics or the body side.

[Grrrmachine]

Cheers Brian, cleaned it up now

[Tom-s]

thank you this will help alot

[ranxerox]

please delete

[Grrrmachine]

Can't remember which is plug and which is socket, but about 2.5 seconds of observation in the engine bay will show which side of the C101 leads to the engine, and which disappears through the bulkhead into the car to the dash cluster.