I've been doing research on the forum and came across this, explaining the difference between 2001 and 2001.5. Does this indicate that all 2001 S4 Avants have the 2001.5 "upgrades"?

2001 S4 has and has nots:
Has (smaller) classic S4 badge.
Has an f-hose.
Has the Hitachi MAF.
Has ESP.

2001.5 S4 has and has nots:
Has (larger "S") new S4 badge.
Does NOT have an f-hose.
Has the Hitachi MAF.
Has ESP.
Note S4 Avant arrived at this point, too.

 

Im almost pos that the american s4 avant only came in 2001.5+

 

my data shows no difference in engine between the 2001/2 so it must be comfort things and minor cosmetics, whats an F-hose

 

" Im almost pos that the american s4 avant only came in 2001.5+"



I hope that's true but you can see that mine was purchased in late 2000, hard to believe that it could be a 2001.5. Is it possible that they began building the avants with the F-hose replacements? I don't know what to look for under the hood.


CARFAX found no inconsistent odometer readings in the mileage history of this 2001 AUDI S4 AVANT QUATTRO

Date: Mileage:
11/27/2000 13
01/16/2001 22

 

Nevermind, found this on s4biturbo.com.
Guess 2001.5's were built in 2000...

Q: What are some differences between B5 platform Audi S4 build dates?
A: Audi seems to roll out updates gradually on their cars, so no list may be totally accurate. For example, you may have a M-box with the older shifter stalk. Also note that S4s were released in Europe before North America.

09/99 (Y2000 initial production, A-box ECU for manual, f-hose, possibly aluminium uprights on suspension, original badge)
06/00 (Y2001, H-box ECU for manual, ESP controller, possibly steel uprights)
10/00 (Y2001.5, M-box ECU for manual, revised turbos, no f-hose, revised TBB, different oil inlet lines, possibly changed shifter stalk, polished aluminum mirrors w/ sport package, new badge, Avant model)
06/01 (Y2002, T-box ECU for manual)

 

told ya so