AAZ engine coolant temperature sensor - MK3 Golf/Jetta and B3/B4 Passat - VWDiesel.net The IDI, TDI, and mTDI source.

• AAZ engine coolant temperature sensor by OldJettaGuy on 04 May, 2018 15:01
• Can anyone provide me with the location of that little bugger?
• #1 by OldJettaGuy on 04 May, 2018 15:03
• 1995 Jettta GL
• #2 by OldJettaGuy on 05 May, 2018 16:32
• Ok, I found the answer on VWVortex. It's the black 3 pin sensor on the left side of the radiator. Cheers!
• #3 by veector on 08 Jun, 2018 12:55
• Thats the sensor for the fan control, like a thermoswitch.  The coolant temp sender that displays in the cluster is on the plastic flange at the front of the cyl head.