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Thread: 2.2DTI Coolant leak

  1. #1
    Regular Member Innes's Avatar
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    Default 2.2DTI Coolant leak

    I noticed that I had slowly been getting through coolant lately but since I did my thermostat it seems to have increased. I've had a look around the new housing and gasket and it all looks fine. Also the pipes connected to it seems ok. The puddle on the floor seem to be on the right hand side of the car (as you look at it from the front) so I think its coming from the the hose thats connected to the radiator that goes to the expansion tank. The expansion tank connection seemed a little moist but didnt seem like a leak. Maybe condensation? I can't see where the hose connects to the radiator as there are all sorts of things in the way but I think this is where it's leaking. How do I get to this pipe? Am I gonna have jack up the car and take the under tray off? Can some post up an exploded diagram from TIS and maybe a part number for the hose. If the hose is the same circumference end to end then I may replace with a silicone hose. Any idea of the circumference?

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    Had a little leak on mine too. Expansion tank connection seemed a little moist. Turned out to be a very slight split around the centre of the tank (at the back, so couldn't see), but more obvious when I got it off, the pipe on the bottom of it was leaking, as the piece of plastic that it fits onto had cracked. New tank (£21 from VX) and one new hose clip for the bottom joint. All fixed, no leaks at all now

    I have heard a rumour that heat from the turbo has been known to crack the plastic in the places where mine had gone?

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    Regular Member Innes's Avatar
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    Thanks for the tip! I'll check it tomorrow.

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    Regular Member Innes's Avatar
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    Looks like the expansion yank is leaking on the seam. Have ordered a replacement from Vauxhall. £15 ex vat with my vectra-c membership card. I don't think that's my only leak though. I've got a feeling my rad may be leaking too!

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