Page 17 of 40
19-14
- Replace coolant drain plug O-ring and install
coolant drain plug into engine.
Tightening torque: 20 Nm (15 ft lb).
- Install lower right coolant hose and secure with
retaining clip.
- Secure coolant drain valve to radiator.
- Screw VAG1274/9 onto expansion tank and insert VAG1274/10 into
adapter.
- Loosen clamp on coolant hose on heater core and pull back hose until
bleeder hole in coolant hose (arrow) is no longer sealed by connection.
- Top off coolant until it flows out from bleeder hole in coolant hose.
- Push coolant hose onto connection and tighten.
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Page 19 of 40
19-16
- Raise engine speed to approx. 2000 rpm for
approx. 5 minutes.
- Allow engine to idle until lower coolant hose on
radiator is hot.
- Check coolant level and top-off if necessary.
When engine is at normal operating
temperature, coolant level must be on MAX
mark. When engine is cold, coolant level must
be between MIN and MAX marks.
WARNING!
The cooling system is pressurized when the
engine is warm. When opening the expansion
tank, wear gloves and other appropriate
protection, cover the cap with a cloth and
open carefully to relieve system pressure
slowly.
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Page 20 of 40
19-17
Radiator, removing and installing
Removing
- Remove front bumper.
Repair Manual, Body Exterior, Repair Group
63
- Drain coolant at drain plug (arrow) page 19
-11
.
Vehicles with automatic transmission - Disconnect coolant hoses at radiator, unhinge clamp from connection
flange (arrow).
- Disconnect connector from temperature switch at bottom-left of
radiator.
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11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.GE03.19.1