Temperature Sensor location

[mercer2773]

Hi Guys, I have a problem with my Temperature gauge , the problem being the needle move up to 90 and then back down to cold the back up again stays at 90 for a while then falls back down again, I presume that it is the Temperature sensor on the engine but unsure where it is located ? any ideas

I have a 2003 VW Passat 2.0 20v ALT engine (petrol) see pic

[smithy602179]

it will probably be under the big air pipe on the drivers side at the back of the engine near the bulk head hope this helps18550

[mercer2773]

it will probably be under the big air pipe on the drivers side at the back of the engine near the bulk head hope this helps18550

Thanks for the reply smithy602179 I take I need to remove the big black air filter to access it , as I cannot see much ? Is it a easy job to do and get at if I remove the black air filter ? Thanks again for the response

[touranasurus]

HI, have you checked radiator coolant level, could be an "air-lock". ?

[smithy602179]

v easy job remove air pipe and sensor is held in with a clip expect some coolant loss

[mercer2773]

Hi thanks for input the coolant level is fine have had no problem with coolant loss

[scotty33]

He means expect some coolant to leak away when you withdraw the sender. Also expect the O ring and clip to need replacing..

[mercer2773]

He means expect some coolant to leak away when you withdraw the sender. Also expect the O ring and clip to need replacing..
Sorry for confusion the comment about the coolant was in response to touranasurus. comment about air in the system , I will replace the O ring and clip thanks