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What happening now?
In message <UPMAIL13.firstname.lastname@example.org> "Ian J Haseltine" writes:
> My Ur quattro (MB engine) has started to use water in a big way, over 2 litres
> since l topped it up a week ago. Today when starting from cold both this
> morning and tonight it would only run on 4 cylinders at first and the exhaust
> sounded as if it was bubbling through water. In addition, for the first mile
> or so it was emitting a thick mist from the exhaust, which then cleared.
> I know that there has been a leak from one of the turbo coolant lines, but
> this has been minor, about a tablespoon of liquid onto my garage floor
I suspect a head gasket leak, very probably from one or both of the rear water
channels into the back of #5. I'm beginning to wonder if there is a bad batch
of head gaskets around - John Robinson and John Coughtrie have both had similar
I'd do a rapid compression test, and also check the exhaust when hot for an
acrid smell - antifreeze stinks when it burns.
Another thing to check, and this is a personal opinion - check the invoice for
the head work that was done to see if you were charged for new head bolts.
> As you can imagine, this is very worrying. The engine had a major top overhaul
> and new turbo back in March, so I dont think that the head gasket has blown.
On the contrary - it would make me think of _exactly_ that.
Committee Member, UK Audi [ur-]quattro Owners Club