Audi Workshop Service and Repair Manuals

Removing

• ‒ Refer to coding on vehicles with encoded radio/radio navigation system (non-OEM only); inquire as necessary.
• ‒ Disconnect earth strap at battery with ignition switched off.
• ‒ Drain coolant .
• ‒ Remove ribbed belt => Page 13-9.

• ‒ → Detach the alternator bolted connections -arrows- and move the alternator towards the front. Do not detach hydraulic connections.

• ‒ → Remove coolant hose from connector -3-.
• ‒ Remove bolt -4-, and detach connector, O-ring -2- and coolant thermostat -1-.

Installing

Installation is carried out in the reverse order; note the following:

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.
• ‒ Coat new O-ring with coolant G 012 A8 D.
• ‒ Install ribbed belt=> Page 13-11.
• ‒ Top up coolant => Page 19-52.

Notes:

• ◆ If the battery is reconnected, please ensure that the vehicle equipment (radio, radio/navigation system, clock, electric window lifters) is activated as described in the operating instructions.
• ◆ Deactivate the service mode of the telematics control unit.

=> Radio, Telephone and Navigation System; Repair group 91

• ◆ Further measures after reconnection of voltage supply:

=> Simos Fuel Injection and Ignition System; Repair group 24

Tightening torques

Checking coolant thermostat

• ‒ Heat thermostat in water bath.

    1)    Cannot be tested