Tacho dosent work?

Tue Apr 15, 2008 7:33 pm

its an 89 318i and the tacho dosent work, im not sure if its just linked to the coil or has a seperate feed from the ECU. either way i have no idea how to sort it!!!

can anyone help?

cheers

Tue Apr 15, 2008 7:41 pm

first check all fuses, dont have my manual to hand so cannot remember which one.

and it is fed from the ECU (i think!!!)

mrlee

Tue Apr 15, 2008 7:45 pm

So you have an issue with you temp gauge and rev counter - have you check you SI batteries? Could be the instrument cluster...

Wed Apr 16, 2008 4:09 pm

SI batteries? hmm im a real newbie to all this modern technology. im a land rover enthusiast!

the temp gauge moves a little when the ignition is turned on. it had crossed my mind that the two may be linked.

ill look into it soon.

Wed Apr 16, 2008 4:27 pm

most likely to be the si board in back the batterys leak and wreck the board, a new cluster will be needed if this is the case.

Wed Apr 16, 2008 11:18 pm

Alex wrote:most likely to be the si board in back the batterys leak and wreck the board, a new cluster will be needed if this is the case.

A fresh SI board may be required, but hardly the whole cluster!

Thu Apr 17, 2008 10:26 am

Brianmoooore wrote:
Alex wrote:most likely to be the si board in back the batterys leak and wreck the board, a new cluster will be needed if this is the case.
A fresh SI board may be required, but hardly the whole cluster!

or if you can replace the si board