Starting from warm is still very difficult:
It turns over for longer than normal & fires up on one cylinder for a while, then two, then more but rather roughly for a while.
It seems to be running rich.
I described the symptoms to a Quattro expert and he said that it could need either of the following parts to cure it:
1. Warm up regulator -bimetallic strip £300+VAT exchange (they rebuild your own Regulator, but it takes 5 wks to do). N.B. It is not normally possible to rebuild it yourself as it needs to be set up to the correct tolerances etc.
2. THERMO-TIMESWITCH £75+VAT
The recommended course of action we were given is:
a) use the car daily until the problem appears. As soon as the problem arises then check if engine has a spark at the coil, fuel etc.
b) change the Regulator first and see if it cures the problem
c) if not then change the timeswitch.
However, my mate drove the car and reckons that although it is boosting up to the right sort of pressure (I think it is going up to 1.8 bar), it is not pulling as hard as you would expect, so something may not be 100% within the engine's current set up at all times (not just on start up)
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