E30 Gauge Cluster

[Nuked_114]

Hi I have a weird problem with my E30's Cluster where the tachometer is stopping at 4500 instead of 6k. Its a m10 engined prefacelift car.
It used to have the clock and econometer but I got a Cluster from the scrapyard in better condition that has a Rev Counter.
Anyone got any ideas on why it does this.

[Five5peed]

Swap the chip in the front?


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[Nuked_114]

Swap the chip in the front?


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Ah yes I know about that chip but the new cluster does not have a slot for it. I checked it out now and I suspect it used to be in an newer model.
Is it possible maybe to hook the rev counter up to another signal.

[slum dog]

Your best bet is to to follow the wiring diagrams

http://www.armchair.mb.ca/~dave/BMW/e30/

My car is a 84 but my wiring is 85, give 83 a try seeing your car is carburetor model. I also changed my cluster like 2 years back I used a cluster from a 89 318i m40, everything worked fine only difference the heat gauge sat in the middle on operating temperature, originally with my old cluster it sat quarter mark. All the m10 e30s I came across sat like this.

You did get a correct cluster cause I doubt m10 e30s came with coding chip in South Africa