AUX AUDI A4 1999 B5 / 1.G AFC Engine Cooling System Components

19-9

- Close drain plug at engine block and at bottom
left of radiator.

- Push on connection flange of coolant hose at
bottom of radiator, and install locking element for
connection flange.

- Unscrew cap on expansion tank, screw on adapter VAG 1274/1, and
extend with 42mm diameter and 100 mm long auxiliary hose.

- Open hose clamp, pull back coolant hose sufficiently so that vent hole
is no longer concealed by connection.
- Open bleed screw at coolant pipe below expansion tank.
- Pour coolant into system until it flows out at bleeder hole, then tighten
screw to 15 Nm (11 ft lb).
- Pour in more coolant until it flows out at vent hole, then push on
coolant hose and tighten.
- Close cap on expansion tank and set heater controls to hot position.
- Start engine and run at about 2000 RPM for about 3 minutes.
Pa
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