Re: Fuel filter intervals on Audi 4000

[Andrew Duane USG/PE <duane@zk3.dec.com>]

Hairy green toads from Mars made Glen Powell say:

>   I think Audi says to change the fool filter every 30k miles, on
>   ur-Quattros and 4000s, etc. An expert Audi mechanic says to replace them
>   every 15k miles for maximum performance and throttle response. He claims
>   that when you get your car back after a tune-up, that like 90% of the
>   improved performance is due to the new fool filter. He claims that the FI
>   is very sensitive to even small drops in pressure due to increases in the
>   fool filter's "impedance" as it fills up with crap.

I can vouch for this. Last summer, my 100Q's fuel pump went to heaven.
When my mechanic replaced it, he replaced the filter, too: "too much
crap gets in it if the pump shreds itself."

Without a tuneup of any sort, just the filter and pump, I noticed a
definite increase in response the next day. For $26 (plus $215 for
the pump, $40 for labor, $45 for the tow), I was satisfied.

-- 

Andrew L. Duane (JOT-7)			duane@zk3.dec.com
Digital Equipment Corporation		(603)-881-1294
110 Spit Brook Road			http://www.zk3.dec.com/~duane
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and we both take pressure medication.