engine oil AUDI A4 1999 B5 / 1.G AEB ATW Engines Charge Air System With Turbocharger Workshop Manual

21-75

Performing pressure test:

- With outlet hose -1- of VAG 1687 connected to air pressure adapter:
- Attach shop air supply line to previously installed male fitting Page
21
-70
.

CAUTION! - Open valve -3- between regulator valve and gauge.
- Adjust test pressure up to 0.5 bar ( CAUTION below) by turning
regulator valve -2-.
DO NOT pressurize the system above 0.5 bar!Doing so may force oil into the intake system which can damage
the engine.
- Slowly open outlet valve -4- (after gauge) to test hose connections.
- Observe pressure gauge for a drop in pressure.
Pa
ge 39 of 42 Char
ge air s
ystem with turbochar
ger
(en
gine code ATW
)
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