After the ignition is turned off there is a noise under the bonet for a vairable length of time, I asked the dealer and he pointed to a little bleck pump behind the air box and said this little device keeps water circulating in the engine after you switch off. Iasked how long it should run, he coul not answer.
Any Ideas of the purpose and what determines when it should switch off?
I don't know the answer. I was told same by my dealer.
The noise sounds like a swarm of bees under the bonnet - funnily last night it performed rather extra noisily on switch-off, yet only for about 5~10seconds.
needed to look under the bonnet again due to water from the aircontitioner on the floor, seems that the mystrey pump hasmany answers depends on whom you ask, o investigation I notice that there is a tube to a vacum diaphram on the Turbo, so I suspect it is not a water device.
Not unusual for a modern Turbo, My GFs old mans Volvo (new T5 I think) can be sitting there all quite on a hot day when the fans/pumps etc kick in!!! very strange. I've seen it go on and off for hours in the garage after a long run.
Tricky Dicky (the old man) had the next model up volvo before the jeep. The fan thingy comes on in the volvo to stop mould and algae build up or something but he can fill in the details when he logs on
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2003 CRD and that noisy water recirculating pump
