>From: "Christopher G. Gharibo, M.D." <firstname.lastname@example.org>
>Date: Sun, 21 Jul 1996 23:04:31 -0400
>Subject: '91 Audi Coupe tune-up
>Several questions to the list:
>I just replaced the NGK plugs on the Coupe with Bosch F6-DTC, as
>recommended by the manual. Are there better plugs available for this car?
>They were trying to push the AutoLite double platinum's on me, but I
>resisted. Another shop liked the Bosch Silver. Any one on the list with
>more insight on these plugs?
Unfortunately can't comment on this. In the past my preference has been for
NGK then Bosch, but I can't remember what I last put in my Coupe.
>How frequently do you change the fuel filter on the Coupe?
Manual appaently doesn't say; my recommendation might be every 30,000 miles.
If you do this, do it with a cold engine/exhaust,and prepare yourself to get
drenched in fuel as you break the fittings loose.
>How frequently do you change the timing belt?
In my opinion, beyond 50,000 miles and you're on borrowed time. I had one
stretch to the point that apparently the camshaft jumped a cog or two and
the engine out of time.
>Besides the air filter, plugs and fuel filter, are there other items that
>you routinely change with a tune up?
I think that largely covers it, although you might consider the following:
- Complete brake fluid flush and brake/hydraulic clutch bleed (every 2
- Coolant repalcement every 3 years w/ non-phosphate coolant
- Tranny and differential fluid replacement at approx. 50,000 mile
with a good quality synthetic (Mobil 1, Red Line)
>Sorry for the string of questions and thank you in advance for your reply.
Ray Calvo (email@example.com)
1990 Coupe Quattro, 105,000 miles young!