two 4000q questions

[Ti Kan]

Nimmer, George writes:
> I have a 1985 4000S quattro.  There are two problems I'm looking for
> advice on.
>
> 1. when the engine is cold (e.g. first thing in the morning) i go to
> start it, and it starts up immediately.  when the engine is warm (e.g.
> I'm running errands, and making many short trips), it takes two or three
> tries to get it running.

Another common question that a search of the audifans archives would have
yielded your answer.  Anyway, possible culprits are leaky fuel injector(s),
out-of-spec fuel accumulator or fuel pump check valve.

> 2. the rear diff does not lock.  I've tried putting the switch to
> position "2" and driving slowly, quickly, in reverse, going straight,
> turning, etc... and it will not lock.   The center diff lock works
> great.

How do you know that it will not lock?  Just by the light on the panel?
Maybe it's just a bad bulb or something.

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
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    ///  Ti Kan                Vorsprung durch Technik
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