After my car was stood still for a few weeks the speedo has decided to stop working. it sits a 0 then will suddenly flick to 120mph when going about 70mph. it will then "drop" all the way round to 180 when slowing or stopping. It will fire back into live after you exceed about 50mph and go to the 140mph point and will decrease the faster you go and increase (eventually back to 180mph when stopped) the slower you go. If you exceed something like 80-90mph (on private roads) it will fire back into life and show the correct speed and increase and decrease normally. If going at slow speed or stop-start of after turning off and turning on again the needle will go back to being stuck at 0 again and the whole process is repeated though again. The warning sign it is about to do this is when the needle wobbles about . this is normally when going 40-50mph.

I have had the speed sensor changed and is not the problem so it is the clock. how can i fix this without changing the clock?

 

It is a UK TT manual.

Might be wiring on the back there mate. Sorry I cant be more specific.

 

Ivan

Do you have a kph/MPH convertor? if so take it out of line.

other faults are dry solderjoints on the speed cluster pcb,

to rectifi this you must re solder the all of the joints.

Also speed sensor fault can cause this problem.

 

Allan

Do you have a kph/MPH convertor? if so take it out of line.

other faults are dry solderjoints on the speed cluster pcb,

to rectifi this you must re solder the all of the joints.

Also speed sensor fault can cause this problem.

 

Allan

 

sorry just read you have a uk spec, speed sensor or dry joints then

speed sensor changed and no joy and uk so not kph convertor. what is the procedure of resoldering dry joints?

Electronics soldering Iron, solder and lots of time