Overview - Coolant Pump/Coolant Thermostat
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2020 Audi A4 allroad, 2020 Audi A4 Quattro, 2019 Audi A4 allroad, 2019 Audi A4 Quattro, and 2018 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.
- Connection
- O-Ring
- Always replace after removing.
- Coat with coolant
- Centering Pin
- Bolt
- Tightening Specifications and Sequence. Refer to Fig 2.
- Seal
- Always replace after removing.
- Coolant Pump
- Removing and installing. Refer to COOLANT PUMP, REMOVING AND INSTALLING .
- For a new coolant pump, remove the protective cap
- Bolt
- Tightening sequence. Refer to Fig 3.
- Toothed Belt
- For the coolant pump
- Removing and installing. Refer to COOLANT PUMP TOOTHED BELT, REMOVING AND INSTALLING .
- Bolt
- 9 Nm
- Toothed Belt Guard
- Bolt
- 10 Nm + 90°
- Always replace after removing.
- Left-hand thread
- Toothed Belt Sprocket
- Note the installation position
- Seal
- Replacing. Refer to BALANCE SHAFT GASKET, REPLACING, INTAKE SIDE .
- For the intake side balance shaft
- Intake Side Balance Shaft
- Seal
- Always replace after removing.
- Engine Temperature Control Actuator -N493-
- Removing and installing. Refer to Engine Temperature Control Actuator -N493-, REMOVING AND INSTALLING .
- Perform the adaptation after replacing using the Vehicle Diagnostic Tester
Engine Temperature Control Actuator N493 - Tightening Sequence
-- Tighten the bolts to 9 Nm in the following sequence: -1 to 5-.
Coolant Pump - Tightening Specifications and Sequence
-- Tighten the coolant pump bolts to 9 Nm in a -1 to 4- sequence.