Audi A6 Coolant Problem

Removing

� If there are small impressions on the fins. Refer to => [ Coolers and Condensers ] See: Engine Service and Repair Coolers and Condensers.

CAUTION!
Cover cap of expansion tank with rag and open carefully, as hot steam for example hot coolant may escape when opening.

� Open cap of coolant expansion tank.
� Remove noise insulation.

� Remove front left and right wheel housing liners.
� Remove front bumper cover.
� Place Drip Tray for Workshop Crane (VAS 6208) under engine.

� Open drain plug - 1 - and allow coolant to drain.
� Then disconnect coolant hose - 2 - from radiator.
� Remove the lower left coolant hose - arrow - from the radiator; to do so lift the clamp.

� Disconnect top coolant hose - right arrow - from radiator.

� Ignore - left arrow -.

Vehicles with Multitronic transmission or automatic transmission 09L:

� Remove bolts - arrows -.

� Remove air duct - 1 - and - 2 -.
� Observe the rules of cleanliness for working on automatic transmissions.

� Place the Used Oil Collection and Extraction Device (V.A.G 1782) under the disconnection point.
� Remove upper and lower ATF lines - arrow - on cooler.

� Seal the open lines and connections with clean plugs from the Engine Bung Set (VAS 6122).
All:

� Remove bolts - 3 - and remove air duct.
� Remove bolts - 4 - and remove bracket for horns; leave electrical connections intact.
� Unfasten bracket - 2 - and - 5 - for headlamp.
� Remove nuts - 1 - and - 6 - and remove bumper.
� Unclip the Outside Air Temperature Sensor (G17) - arrow - from the bracket.

� Remove power steering cooling coil bolts - 1 - and - 2 - hydraulic hoses remain connected.
� Remove air guides at left and right of radiator.
CAUTION!
The air conditioning refrigerant circuit must not be opened.

� Separate the electrical connector - 1 -.

� Remove the bolts - arrows -.
� Do not bend or stretch lines or hoses as A/C compressor and/or refrigerant lines/hoses may be damaged.

� Pivot the condenser downward with lines connected.
� Release both radiator retaining pins and remove by pulling upward - arrows -.

� Pivot radiator forward, pull up and remove.
Installing

Installation is in reverse order of removal, note the following:

� Secure all hose connections with hose clamps appropriate for the model.

� Install ATF lines.
� Install the front bumper cover.
� Install front left and right wheel housing liners.
� Remove the old O-ring - 2 - in the coolant hose - 3 -.

� Coat new O-ring with coolant additive and install it in the coolant hose.
� Press the coolant hose onto the radiator - 1 - until it engages audibly.
� Press the coolant hose on again and pull to make sure the connection is engaged correctly.
� Fill with coolant => [ Filling ] See: Service and Repair Procedures.
� Complete coolant must be replaced if the radiator was replaced.

� Check ATF level.