Audi A4 Owners & Service Manuals

Audi A4: Coolant Pump, Removing and Installing

Removing

- Remove the engine cover. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.10; Engine Cover; Engine Cover, Removing and Installing.

- Drain the coolant. Refer to → Chapter "Coolant, Draining and Filling".

- Disconnect the connectors -2 to 5-.

  Note

Ignore item -1-.

A15-11643

- Remove the bolt -1- and move the bracket -2- with the engine wiring harness to the side.

All additional procedures are described under: → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Thermostat; Coolant Pump, Removing and Installing.

A17-11041

Installing

Additional procedures:

- Connections and wire routing. Refer to → Wiring diagrams, Troubleshooting & Component locations.

  Note

Used coolant cannot be used again.

- Fill with coolant. Refer to → Chapter "Coolant, Draining and Filling".

- Install the engine cover. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.10; Engine Cover; Engine Cover, Removing and Installing.

Coolant Pump Toothed Belt, Removing and Installing

Removing

- Remove the engine cover. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.10; Engine Cover; Engine Cover, Removing and Installing.

- Drain the coolant. Refer to → Chapter "Coolant, Draining and Filling".

- Remove the bolt -1- and move the bracket -2- with the engine wiring harness to the side.

A17-11041

- Lift the clamps -1 and 2- and remove the coolant hoses and push them to the side.

All additional procedures are described under: → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Thermostat; Coolant Pump Toothed Belt, Removing and Installing.

A19-12333

Installing

Additional procedures:

- Connections and wire routing. Refer to → Wiring diagrams, Troubleshooting & Component locations.

- Connect the coolant hose to the connector coupling. Refer to → Fig. "Connect the Coolant Hose to the Connector Coupling".

  Note

Used coolant cannot be used again.

- Fill with coolant. Refer to → Chapter "Coolant, Draining and Filling".

- Install the engine cover. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.10; Engine Cover; Engine Cover, Removing and Installing.

Engine Temperature Control Actuator -N493-, Removing and Installing

Removing

- Drain the coolant. Refer to → Chapter "Coolant, Draining and Filling".

- Lift up the clamps -arrows- and remove and free up the coolant hoses.

- Disconnect the connector -1- for the Engine Coolant Level Warning Switch -F66-.

- Remove the bolt -2- and remove the coolant expansion tank -3-.

All additional procedures are described under: → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Thermostat; Overview - Coolant Pump/Coolant Thermostat.

A19-12324

Installing

Additional procedures:

- Connect the coolant hose to the connector coupling. Refer to → Fig. "Connect the Coolant Hose to the Connector Coupling".

  Note

Used coolant cannot be used again.

- Fill with coolant. Refer to → Chapter "Coolant, Draining and Filling".

Engine Coolant Temperature Sensor -G62-, Removing and Installing

All procedures are described under: → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Thermostat; Engine Coolant Temperature Sensor on Radiator OutletG83, Removing and Installing.

Engine Coolant Temperature Sensor on Radiator Outlet -G83-, Removing and Installing

Procedure

  • The engine is cold.

- To reduce the residual pressure in the cooling system, briefly open the coolant expansion tank cap -1- by releasing the retainer in the direction of -arrow-.

- Remove the front noise insulation. Refer to → Body Exterior; Rep. Gr.66; Noise Insulation; Overview - Noise Insulation.

A19-12304

- Disconnect the connector -2-.

  Note

  • Place a cloth underneath to catch any escaping coolant.
  • Replace the O-ring after removing.
  • Insert the new Engine Coolant Temperature Sensor on Radiator Outlet -G83- immediately in the connection to prevent coolant loss.

- Open the clamp -1- and remove the Engine Coolant Temperature Sensor on Radiator Outlet -G83-.

Install in reverse order of removal and note the following:

- Check the coolant level.

A19-12334

Tightening Specifications

  • Refer to → Body Exterior; Rep. Gr.66; Noise Insulation; Overview - Noise Insulation.

Coolant Pipes

All procedures and components are described under: → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pipes.

    READ NEXT:

     Radiator/Radiator Fan

    Overview - Radiator/Radiator Fan 1 - Radiator Removing and installing. Refer to → Chapter "Radiator, Removing and Installing". After replacing, replace entire amount of coolant

     Radiator, Removing and Installing

    Special tools and workshop equipment required Coolant Collection System -VAS5014- or Shop Crane - Drip Tray -VAS6208- Elbow Assembly Tool -T10118-   Caution This procedure contains mandato

     Fan Shroud, Removing and Installing

    Removing - Remove the front noise insulation. Refer to → Body Exterior; Rep. Gr.66; Noise Insulation; Overview - Noise Insulation. - Remove the charge air cooler. Refer to

    SEE MORE:

     A/C System, Operating after Charging

      Note If the mechanically driven Air Conditioning (A/C) compressor was removed, rotate it approximately 10 times by hand before using it for the first time (during or after installing, for example before installing the belt) to prevent damage caused by liquid impact when first switched

     Head Curtain Airbags

    Overview - Head Curtain Airbag   Note The Avant is shown. 1 - Bolt 5 Nm Replace after removing 2 - Clip Quantity: 2 3 - Clip Only available with -6- Remove with Clip Pliers -VAS211001- 4 - Colored Strip Serves as anti-rotation protector Mu

    © 2019-2024 Copyright www.audia4b9.com