Audi A4 Owners & Service Manuals

Audi A4: Coolant Pump/Coolant Thermostat

Overview - Coolant Pump/Coolant Thermostat

Overview - Coolant Pump/Coolant Thermostat

1 - Connection

2 - O-ring

  • Installation instructions. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Coolant Pump/Coolant Regulation.

3 - Centering Pin

4 - Bolt

  • Tightening specifications. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Coolant Pump/Coolant Regulation.

5 - Seal

  • Installation instructions. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Coolant Pump/Coolant Regulation.

6 - Coolant Pump

  • Removing and installing. Refer to → Chapter "Coolant Pump, Removing and Installing".

7 - Bolt

  • Tightening specifications. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Coolant Pump/Coolant Regulation.

8 - Toothed Belt

  • For the coolant pump
  • Removing and installing. Refer to → Chapter "Coolant Pump Toothed Belt, Removing and Installing".

9 - Bolt

  • Tightening specifications. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Coolant Pump/Coolant Regulation.

10 - Toothed Belt Guard

11 - Bolt

  • Tightening specifications. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Coolant Pump/Coolant Regulation.

12 - Toothed Belt Sprocket

13 - Seal

  • Replacing. Refer to → Chapter "Balance Shaft Gasket, Replacing, Intake Side".

14 - Balance Shaft

15 - Seal

  • Installation instructions. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Coolant Pump/Coolant Regulation.

16 - Engine Temperature Control Actuator -N493-

  • Removing and installing. Refer to → Chapter "Engine Temperature Control Actuator -N493-, Removing and Installing".

Overview - Electric Coolant Pump

Overview - Electric Coolant Pump

1 - Bolt

  • 9 Nm

2 - Coolant Recirculation Pump -V50-

  • Removing and installing. Refer to → Chapter "Coolant Recirculation Pump -V50-, Removing and Installing".

3 - After-Run Coolant Pump -V51-

  • Removing and installing. Refer to → Chapter "After-Run Coolant Pump -V51-, Removing and Installing".

4 - Bolt

  • 9 Nm

5 - Rubber Grommet

6 - Bolt

  • 2.7 Nm

7 - Rubber Grommet

8 - Bolt

  • 2.7 Nm

9 - Bracket

  • For the electric coolant pump

Overview - Engine Coolant Temperature Sensor

Overview - Engine Coolant Temperature Sensor

1 - Clip

  • Installation instructions. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Engine Coolant Temperature Sensor.

2 - O-ring

  • Installation instructions. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Engine Coolant Temperature Sensor.

3 - O-ring

  • Installation instructions. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Engine Coolant Temperature Sensor.

4 - O-ring

  • Installation instructions. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Engine Coolant Temperature Sensor.

5 - Engine Coolant Temperature Sensor -G62-

  • On transmission side of the cylinder head
  • Removing and installing. Refer to → Chapter "Engine Coolant Temperature Sensor -G62-, Removing and Installing".

6 - Bolt

  • Tightening specifications. Refer to → Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.19; Coolant Pump/Coolant Regulation; Overview - Engine Coolant Temperature Sensor.

7 - Engine Coolant Temperature Sensor on Radiator Outlet -G83-

  • Removing and installing. Refer to → Chapter "Engine Coolant Temperature Sensor on Radiator Outlet -G83-, Removing and Installing".

    READ NEXT:

     Electric Coolant Pump, Removing and Installing

    Coolant Recirculation Pump -V50-, Removing and Installing Special tools and workshop equipment required Hose Clamps - Up To 25mm -3094- Hose Clip Pliers -VAS6340- Removing - Remove the engine

     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 coo

     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

    SEE MORE:

     Engine, Removing

    Special tools and workshop equipment required Engine Support Bridge -10-222A- Engine Sling -2024A- Engine Support Bridge Adapter -3147- Ring Wrench 7-Piece Set -3337- Torque Wrench 1332 Insert - Ring Wrench - 16mm -VAG1332/14- Shop Crane -VAS6100- Engine Bung Set -VAS6122- Coolant Collectio

     Refrigerant R134a Capacities, Refrigerant Oil and Approved Refrigerant Oils

    Approved Refrigerant Oils and Capacities   Note As PAG (polyalkylene glycol) oil is highly hygroscopic (attracts water), opened containers are to be immediately resealed so as to be air-tight. PAG oil from containers which have been open for a lengthy period is no longer usable. Refrige

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