Audi Workshop Service and Repair Manuals

Removing

• ‒ Obtain code on vehicles with coded radio/integrated radio and navigation system.
• ‒ With ignition switched off disconnect battery earth strap.
• ‒ Drain cooling system
• ‒ Remove ribbed belt => Page 13-9.

• ‒ → Unscrew bolts for alternator -arrows- and lay alternator forward. The wires remain connected.

• ‒ → Disconnect coolant hose from connection -3-.
• ‒ Unscrew bolts -4- and remove connection, O-ring -2- and coolant thermostat -1-.

Installing

Install in reverse sequence; note the following points:

Note:

Replace O-ring.

• ‒ Clean and smooth down sealing surface for O-ring as required.
• ‒ Insert coolant thermostat.
• ‒ Installation position: cross-piece on thermostat should be vertical.
• ‒ Moisten new O ring with coolant G 012 A8 D.
• ‒ Install ribbed belt .
• ‒ Fill up with coolant=> Page 19-7.

Notes:

• ◆ When the battery is reconnected, re-activate electrical equipment (radio, combined radio/navigation system, clock, electric windows) as described in the Owner's Manual.
• ◆ De-activate service mode in telematics control unit.

=> Radio, telephone and navigation system; Repair group 91

• ◆ Further procedures after reconnecting the voltage supply:

=> Motronic injection and ignition system; Repair group 24

Tightening torque

Testing coolant thermostat

• ‒ Heat thermostat in water bath.

    1)    cannot be tested