Fuel Pipe Leak A100 T44
audi at humanspeakers.com
Thu Apr 10 08:46:17 PDT 2008
> Went to start the car (1988 Audi 100, UK base model) and heard petrol
> spraying out near the rear wheel, quickly making a large puddle.
> I can not see exactly where it is coming from, but it appears to be a
> leak in the fuel supply pipe, possibly out of sight, in the section
> where it rises vertically around the fuel tank.
> Have checked the archives, but most leaks encountered seem to be
> underneath in the straight section, near one of the supports.
> Has anyone replaced the fuel pipes? It looks like it might be difficult
> to get the pipe routed correctly.
I replaced one on a coupe with a used good pipe once. Awkward, a lift
helped, but not too bad.
> Does the tank have to be removed? This would be a problem as it is
> almost full.
I don't know on your model, but you can always drain the tank into safe
containers (if you only have one jug, fill up all the other tanks
nearby, make friends)
> Do new pipes come pre bent?
If yours are still available from the dealer, yes, they do. They'll
probably have a few extra bends due to handling, based on the 4kq ones I
saw once, but they will have all the "right" bands in them.
> Could I replace part of the pipe with a flexible section, assuming I
> could make good connections? I'm thinking something similar to the
> braided section in the engine bay.
People have done that many times as a "patch job", with quite a few
being left that way. They double-clamp them to the metal pipe, at the
A more correct repair would be to use appropriate metal pipe with
pre-flared and fitted ends, and put the right fittings on the old pipe
and flare it properly.
> Haynes and Vagcat.com refer to a fuel accumulator, but where is it ? I
> can't see it anywhere, but if present it will affect what pipe I need.
Don't know on your car, but it's usually after the pump.
> The car is currently in storage, and is not easy to move to a well
> ventilated area. The car has a few issues so is possibly not worth repairing.
> However, I'm still concerned about the safety aspect of all that fuel
> sitting there.
Well, a full tank is safer than an empty one, but as I said above, you
could always drain it and move the fuel to another vehicle. Although,
the ventilation problem is... a problem.
Hope this helps somewhat.
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