temp problems on instrument cluster

[K7ERG]

The car is a 2.5 5cyl tdi 1997.

I have noticed that the coolant temp gauge moves about a bit. Sometimes sits at 90 then can see it drop off to 60.

Any ideas???

The other problem is getting the outside temp part to light up.
Is it just a bulb that needs replaced.

And finally the read out for the outside temp is out a fair bit.

Where is this located?

Thanks in advance

Craig

[Rusty]

If it's anything like teh S2 gauge, then it's not linear -

http://www.s2forum.com/forum/showpost.php?p=393620&postcount=15

[K7ERG]

It does sit about the 60 mark. Never goes past 90. Interesting out a good bit.

[spink]

The car is a 2.5 5cyl tdi 1997.

I have noticed that the coolant temp gauge moves about a bit. Sometimes sits at 90 then can see it drop off to 60.

Any ideas???

The other problem is getting the outside temp part to light up.
Is it just a bulb that needs replaced.

And finally the read out for the outside temp is out a fair bit.

Where is this located?

Thanks in advance

Craig

thermostat probably or mtfs

temp sensor is clipped onto the inside of the front bumper

and yes bulb will have blown in temp display,you can replaced the bulb.There is a threa d on here somewhere i think which covers it

[dobbin]

i had similar problem changed temp sensors but found out that stat was faulty sticks open or shut

[K7ERG]

Ok will check stat.

What side is the outside temp sensor. Reads mid 40's must be near the radiator. Undertray off when next off.

Best place for a therostat?