Trig Posted October 11, 2005 Report Posted October 11, 2005 Hi. The temperature gauge is playing up on my old shape 2000 1.9 TDI (90). My local Ford dealership have told me that the sensor needs changing. The sensor they supplied me (part no. F1137698) only has 2 terminals. The one I have removed as advised by the Haynes manual is just in front of the left hand end of the cyl. head and has 4 terminals ( VW part no. 357919501A with a yellow plastic ring). Am I working on the right sensor? VW recognised their part number and it has been superceded by 6U0919501B. Should I be fitting this sensor? My wife accidently ran the car for a short journey with the sensor removed and she ignored the flashing low level coolant light :( Does this mean that all the coolant will have been pumped out or will the system just need a top up?Thanks :) Quote
marty16610 Posted October 11, 2005 Report Posted October 11, 2005 Hi m8. Is the sensor in a housing on the gearbox end of the cyl head? if so this is the coolant temp sensor for the engine management it also sends signals to the temp gauge and warning light so (according to Haynes) you are correct. I did mine a short while ago as my rad fans were coming on when the engine was stone cold. I bought mine from local branch of Camberley Auto Factors Quote
Guest marcusheawood Posted October 11, 2005 Report Posted October 11, 2005 ..and yes, most of the coolant will have hit the road! :( Quote
Trig Posted October 11, 2005 Author Report Posted October 11, 2005 Hi m8. Is the sensor in a housing on the gearbox end of the cyl head? if so this is the coolant temp sensor for the engine management it also sends signals to the temp gauge and warning light so (according to Haynes) you are correct. I did mine a short while ago as my rad fans were coming on when the engine was stone cold. I bought mine from local branch of Camberley Auto Factors Quote
Trig Posted October 11, 2005 Author Report Posted October 11, 2005 ..and yes, most of the coolant will have hit the road! :lol: Is there anything I should know about, when filling the system back up or is it simply a matter of pouring the 50/50 coolant mix in the header tank? :( Quote
marty16610 Posted October 11, 2005 Report Posted October 11, 2005 On mine the sensor was telling the engine management system the engine was hot when it wasnt, hence the fans kicking in. Check Haynes manual section 3.17/103 radiator fan third speed switch. Confusing aint it. Part # INT 55103 Quote
marty16610 Posted October 11, 2005 Report Posted October 11, 2005 Fill system to MAX mark slowly and squeeze the hoses to get the air out then run engine with expansion bottle cap off (DO NOT DRIVE) until warm preferably till stat opens then allow to cool and top up to max. You my have to top up again after driving as any trapped air is expelled Quote
Trig Posted October 12, 2005 Author Report Posted October 12, 2005 I just got the same sensor as you from Partco. There weren't any alternatives for different power engines but the Intermet catalogue stated it was for 1995 on 66KW which equates to about 90BHP. I think the same sensor must be suitable for both power engines.Thanks for your help :lol: Quote
marty16610 Posted October 12, 2005 Report Posted October 12, 2005 No probs m8, hope it sorts the gauge Quote
Trig Posted October 14, 2005 Author Report Posted October 14, 2005 Put the new sensor in last night and found that I only had to use about 5 ltrs to fill up. So now I have a mix of the old blue/green (not orange) and the latest antifreeze 'Ford Super Plus Premium' to spec WSS M97B44-D. The Ford parts department told me that they are compatable.I just want to make sure they are correct :P Gauge is perfect now :D Quote
marty16610 Posted October 14, 2005 Report Posted October 14, 2005 Hi m8. Ive read a lot about mixing different types of antifreeze and many people don't recommend it. My advise would be to drain system completely, flush and refill with Ford Super Plus Premium, unless anyone out there knows different :P Quote
Trig Posted October 15, 2005 Author Report Posted October 15, 2005 Does anyone know different because I could do without the hassle at the moment :lol: Quote
Masked Marauder Posted October 16, 2005 Report Posted October 16, 2005 You can not mix Ethylene-Glycol and Propylene-Glycol antifreezes. All current Ford anti-freezes are Ethylene-Glycol based. As will be the blue/green you used. Propyline-Glycol is normally purple. Quote
Trig Posted October 17, 2005 Author Report Posted October 17, 2005 Presumably then, the 'orange' antifreeze which my Ford handbook warns me not to mix with 'blue/green' was also a Propyline-Glycol?? :rolleyes: Any road up, even though all I did was change the sensor and refill with antifreeze the system has now decided to spring a leak. Typical! :) Quote
Masked Marauder Posted October 17, 2005 Report Posted October 17, 2005 NO, all Ford anti-freeze is ETHYLENE-GLYCOL based. Quote
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