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
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AAC Engine T4 Transporter Auxiliary Water Pump
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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..
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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
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