D

DJLiss

New Member
Does anyone know where the tacho gauge is fed from on a 300tdi?? Is it the alternator. Tacho stopped working after i had a new one fitted and 2 months ago.
 
Yes your Tacho is fed by the small white wire on the back of your alternator.

There should be 3 Wires,
1 (Brown) thick charging Cable to the Battery via charging circuit fuse.
2 (brown and yellow) Thin wire to the Charge warning light in the Dash

and lastly
3 (White) Thin wire, which is the feed to your Tacho, via the Feed Tap Resistor

Hope this Helps pal.
 
Did the Old one have 3 wires?

Has the speedo worked at all since you had the new alternator fitted?

You could always follow the White and Grey wire from the Tacho!
 
It was a while ago now so i cant remember the wiring of the old one. I think it did.


Yes the speedo does work.


And thats a big job following the wire.
 
Sorry I meant did the Tacho work since fitting?

My guess is that it hasn't.

I think you have the wrong alternator fitted, unless there is another way of getting engine RPM from elsewhere!
 
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