Rev counter Golf tdi

[A8-TDI]

Hi on my wifes 2002 golf tdi the rev counter dosent go to 0 when its switched off, i have taken the clock apart and reset it to 0 by moving the needle but then over a week or so its moved bake up again so when im driving along at 50 mph the rev counter is on 4500 rpm! any ideas anyone?

[VAGMAN54]

have you checked for any fault codes? and where is it at at tickover?

[A8-TDI]

the rev counter is at 2500 at tick over and the engine ticks over at its normal speed.

[VAGMAN54]

and have you checked the instrument panel for faults ?

[A8-TDI]

no havent checked for faults on the ecu, cant understand why the needle moves it self up and dosent come down, the car itself isnt affected in anyway.

[VAGMAN54]

may be its a dash faut but you can do tests on it but you need to plug in with a good scanner or vcds ,if it was a rpm sensor fault the car would do any amount of silly things.

[A8-TDI]

ive reset the needle 3 times to 0 but it end up working its way up the rev counter.....its sitting at 2500 with the engine off

[Crasher]

You need the panel replacing or rebuilding by an instrument specialist of which there are quite a few now. Bear in mind that with the clocks out, the car will not run.

[A8-TDI]

what actually causes this and would there be fault codes?

[Crasher]

From what my repairers have told me, it is poor quality components that fail. About half the Golf 4 panels I send for repair cannot be fixed and I have to buy and code in a genuine exchange unit, which can be a real pain even with the appropriate specialised software. Usually there are no fault codes.

[A8-TDI]

could i put in a second hand rev counter without having to code or maybe a new rev counter? that way i wouldnt replace the whole thing needing to code too.

[Crasher]

I have never pulled one of those panel apart, simply takes too long to do compared with having it fixed for me or fitting an exchange unit. It is a different world when the clock ticks by at £55 an hour.