1997 BMW 740 Repair Question
Topics covered: Engine, Instrument cluster, Rpm.
Mileage: 18,200 miles.
Mileage: 18,200 miles.
Asked on October 27, 2012
BMW 740 Engine Problem
I have purchased 3 instrument clusters and have had basically the same issue with them.
1. When installed, the temperature gauge does not work but goes all the way to overheating.
2. The traction light comes on.
3. The RPM guage does not work.
What could be the problem?
Should the connection placement match as well?
1. When installed, the temperature gauge does not work but goes all the way to overheating.
2. The traction light comes on.
3. The RPM guage does not work.
What could be the problem?
Should the connection placement match as well?
Asked by Reeves1Answer
Replied on October 27, 2012
your sender unit may be your issue with the temp gauge.
trac light indicates a problem that needs to be checked.
the tach may be a bad signal from the pcm.
get it checked by a shop to verify
Roy
Replied on October 27, 2012
No. The reason I am replacing the cluster is the readable display is pixelated
Replied on October 31, 2012
Have it scanned for codes. That'll answer the trac question.
If the temp gauge in multiple displays is reading hot, either the engine is overheating, the sensor is bad, or the PCM is giving or getting bad signals.
Check the connections in the tach circuit.
Replied on November 1, 2012
Volvo? I see this posted in BMW land
Replied on November 1, 2012
Doc, it seems to be a BMW 740. At least that's all I see.