S4 Sedan L5-2226cc 2.22L DOHC Turbo (AAN) (1992)
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Cowl: Technical Service Bulletins
Plenum Drain Valve - Checking & Replacing
Group: 50
Number: 94-06
Date: Aug. 1, 1994
Subject:
Plenum Drain Valve, Checking/Replacing
Model(s):
100, S4 From 1992 m.y. including m.y. 1995
It is important that the plenum drain valve (see illustration) on all 1992 and newer 100, and S4 model vehicles be checked for dirt/debris every 7500
miles.
If the drain valve is clogged with dirt or debris, the valve must be replaced and the clogged part sent to the Warranty Test Center (along with a completed
warranty parts tag) for analysis.
The time units for the following scheduled maintenance labor operations have been changed to reflect this checking/replacing of the valve:
