I've had a problem with my 130 TDI temp gauge not moving above 60 (ie not moving at all) under most driving conditions.
I took it to the local garage and they have replaced the thermostat, red coolant, temperature sensor and water pump (along with cambelt).
After all that (the usual), the only way I can get the temp dial on the dash to move is do 70mph / 2k revs for a decent distance along the motorway. As soon as I slow down, the temp drops. I've not heard the fans kick in for months and the fuel economy has dropped through the floor as it's never getting hot.
Garage said some of the pipes aren't even getting hot until they give it a really fast idle.
I've seen on other forums that it could be the brand / make / model of thermostat causing this and to use specific German / Vag thermostats ?
It's an 04 plate car so I don't want to take it to a specialist, any ideas would be welcome to get her hot and economical again.
cheers, Phil
I took it to the local garage and they have replaced the thermostat, red coolant, temperature sensor and water pump (along with cambelt).
After all that (the usual), the only way I can get the temp dial on the dash to move is do 70mph / 2k revs for a decent distance along the motorway. As soon as I slow down, the temp drops. I've not heard the fans kick in for months and the fuel economy has dropped through the floor as it's never getting hot.
Garage said some of the pipes aren't even getting hot until they give it a really fast idle.
I've seen on other forums that it could be the brand / make / model of thermostat causing this and to use specific German / Vag thermostats ?
It's an 04 plate car so I don't want to take it to a specialist, any ideas would be welcome to get her hot and economical again.
cheers, Phil
We replaced the temperature sensor due to it not functioning even when stationary on a fast idle and the engine hot, after replacing the sensor it showed temperature change however on road test the temperature went back down indicating the thermostat is possible stuck open and not maintaining engine temperature, as advised and quoted we would recommend this to be done as this is the only component that regulates engine temperature.
Hope this makes sense, unless the temperature gauge doesn’t move at all anymore even when stationary on a fast idle it may have a bad sensor?