OVERVIEW - COOLANT PUMP/COOLANT THERMOSTAT, ENGINE WITH Engine Temperature Control Actuator -N493-
WARNING: This page is about a different car, the 2018 Audi Q3 Quattro, 2018 Audi Q3, 2017 Audi Q3 Quattro, and 2017 Audi Q3. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exploded View Of Coolant Pump/Coolant Thermostat (Engine With Engine Temperature Control Actuator -N493-)
- Connection
- O-ring
- Always replace after removing
- Coat with coolant
- Centering Pin
- Bolt
- Tightening Specifications and Sequence. Refer to Fig 3.
- 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 specification and 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
- For the intake side balance shaft
- Replacing. Refer to BALANCE SHAFT GASKET, REPLACING, INTAKE SIDE .
- 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
-- Tighten the bolts to 9 Nm in the following sequence: -1 to 5-.
-- Tighten the coolant pump bolts to 9 Nm in a -1 to 4- sequence.
NOTE:
For the coolant pump tightening and loosening sequence is the same, -1 to 4-.