Reply With QuoteI recall when I had my 2000 Caravelle the auxiliary pump was running when the engine was switched off for a period of time to avoid hot engine soak. It should switch off after a little while.
Cheers, Scott
New Dubber
I’m wondering is anyone with a 2.0L AAC engine transporter could tell me when their aux water pump comes on? Is it only when the engine is hot or is it all the time when the engine is switched off? Thanks
Volkswagen Enthusiast
I recall when I had my 2000 Caravelle the auxiliary pump was running when the engine was switched off for a period of time to avoid hot engine soak. It should switch off after a little while.
Cheers, Scott
New Dubber
Thanks Scott. Do you remember if it would operate only when the engine was hot or would it happen whenever you would switch off the engine? I’ve not had mine come on (only recently bought the van) so I’m wondering if it’s not working all together..
Volkswagen Fanatic
It will only come on when it's hot & generally only for a minute or so. It's powered separate to the ignition circuit.
Understand how it works, troubleshoot logically BEFORE replacing parts.
2001 T4 TRAKKA Syncro 2.5TDI,2006 Mk5 2.0TDI Golf manual,2001 Polo 1.4 16V manual [now sold], '09 2.0CR TDI Tiguan manual,
Numerous Mk1 Golf diesels
Volkswagen Enthusiast
Hi Stolky,
What Jets said coupled with one of the engine fans running on slow speed for a minute or as well. I would typically notice it on after a good run leading to a hot engine soak. Cheers, Scott.
New Dubber
Thanks guys. I'll take it for a good run and see if I can get it to come on. If its not working all together could you imagine it being detrimental to the engine?
Volkswagen Enthusiast
Probably not detrimental, given but I am not sure, whether this auxiliary arrangement even existed on earlier versions of the five cylinder VW/Audi engines. Cheers, Scott
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