I have no real mechanical knowledge whatsoever so please bear with me.
When attempting to start my car, the engine just ticks over but does
not start, as if the car is low on fuel (which it is clearly not). The
glow plugs are fine. I had to call out breakdown recovery to get my
car started. The mechanic told me to turn the ignition key while he
sprayed Easy Start down the air intake (I think its in the tube leading
from the air filter to the engine). Having observed what he did, I
bought some Easy Start and can now start the car with the aid of a
friend (to turn the key while I spray). The mechanic said it was some
sort of fuel problem (unsurprisingly).
When I took it to an independent garage (as I cannot afford to take it
to the Audi garage - £100 an hour for checking the car out!) they
could not identify the problem, but decided to put new glow plugs on
for the sake of it and said to me they THINK it is to do with the
immobiliser (i.e. may need recoding for the one key I have). BUT, why
does the fuel come through once the car has started if it is an
immobiliser problem (surely NO fuel would be allowed through).
Another mechanic has said (without diagnosing the problem) that it
appears to be a fuel pump problem (i.e. I need a new fuel pump - which
someone said to me costs about £600!)
Once the car has started, it runs as if there is no problem. Once I
stop the car after driving it for a while (so it is nicely warmed up),
it still will not start. Occassionally after turning the key for about
5 to 8 seconds, it will start.
I have recently had the car through a full service (new filters, oil
change, etc). It was fine until I had new brakes and discs put on.
Then after a day of the brakes being on, this fuel probem occurred. I
know there should be no connection between brakes and fuel.
Has anyone expeienced anything similar with their diesel Audi, or can
someone please give me some guidance as to what I should do (I know I
need to get it diagnosed from an expert but I cannot afford to be
paying £200 for diagnostics and £600 for new fuel pumps!)