Odd noise

Hi,

I first bought my '04 TD4 freelander in July and everything was fine until the weather got a little colder. I have to move it each morning to get my motorbike out and so start it reverse, keeping the engine running whilst I get the bike out and then move it back. When I switch the engine off there is a high pitched whine thats last for about a minute or two and what looks like exhaust gases coming from the front left. Upon inspection there is a small diameter (1cm ish) tube coming straight down, out of the engine tray just behind the bumper.

Is this normal? What does this tube connect to and why is there gases coming from it and why is it whinning? I thought it might be the turbocharger

Thanks for any help.

Chris

yu gorra FBH?

Fuel burning preheater, it cuts in when you switch the "ignition" on below a certain temperature (5°?), but seems to run on for a while after you turn off. It helps warm the vehicle up on cold mornings as the Td4 isn't a particularly warm running engine.
I can't say I noticed mush difference between mine, which doesn't have one, and the company ones, that did, but then I leave home and drive steadily up hill for a couple of miles!

Sorry MHM, I'm a slow typer

is ok - youre explanation was more in-depth than mine. I dunno - peeps wot dont know wot their motors have got .

Ah right, thats what it is. Thanks for putting my mind at rest