Auxillary Heater Temp Sensor?

[Manxman]

Auxillary heater stopped working after being fine for months. I am trying to locate the temp sensor and bridge the terminals. I believed this sensor was near the n/s wiper arm. Nothing seen in that area. In fact the only wired items are the screen wash nozzles.

Any idea where I should be looking? It's a 2001 Tdi .. By the way, the fuse is OK..

If the glow plug was suspect would the heater unit still attempt to start for a few seconds?

Thanks for any advice.

KF

[Masked Marauder]

That is exactly the symptoms of the glow plug, it tries to start, the fan spins about a 1/4 of a turn and it stops.

 

The temperature switch is clipped to the frame of the wiper linkage near the pollen filter.

 

http://www.bigtrucker.co.uk/images/heaterswitch.jpg

[Gadgetoid]

When my glow plug was duff the blower would start and spin for about 20 secs before turning off. I could hear the metering pump ticking all that time - no doubt squirting more unburnt diesel onto the insides of the booster heater. The puff of white smoke at the time was probably atomised diesel - but nothing compared to the smoke screen that resulted when a new glowplug successfully initiated ignition and all that unburnt diesel started to combust :lol: