Temp gauge still cold after temp sensor replacement

[micheal balbrig]

Rowdy suggests to include gauge in suspects,
The Temp reading low at 50 ish , does it go lower when parked for a long period ?

[arman123]

We're the tabs on the stat housing still there when you fitted the stat did the stat turn and lock Into the housing?

[arman123]

Turn thermostat -item 2- approx. 90° (1/4 turn) anti-clockwise -arrow- and remove it from hose connection. – Remove O-ring -1-. Installing Installation is carried out in the reverse order; note the following: Note Renew O-ring. – Clean and smoothen sealing surface for O-ring as required.

– Insert thermostat -3- with new O-ring -2- into hose connection -1-. l When inserting, the cross-piece on the thermostat should be horizontal as shown in the illustration. – Then turn thermostat 90° (1/4 of a turn) clockwise. – Lubricate O-ring with coolant additive. – Fill cooling system → Anchor. Tightening torque

[cka4]

As I recall, I did have to purchase a new housing also, for correct tab-age. Needle never actually seems to move from its lower most position when cold, ie 50 degs. When I have time, I'll try checking the stat fitment, and maybe have a replacement on hand..

[arman123]

did you fit a genuine temp sensor

[micheal balbrig]

Maybe someone can tell if the temp gauge has a separate earth which may be faulty.

[zollaf]

does the needle on the gauge actually move at all, even just a tiny little bit, to indicate the gauge is actually working..

[cka4]

The replacement temp sensor was made by "intermotor" but I made sure it was the correct part number to match the original. So, no, it wasn't a genuine Audi one. But if non-oem aren't up to the job, it's a wonder they ever sell any?

The needle never moves from it's leftmost position

[zollaf]

if the needle never mores at all, not even a little bit then i would do a needle test (if possible) using vcds. see if the needle will move at all or if the cluster is dead.

[FathandsF47]

Did you ever get to the bottom of this?
My car has just developed the same issue!