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Home >> Audi >> 2017 >> TT Quattro Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 67 (Cooling System [CNTC,CYFB] (2 Of 2) [Coupe]) >> 19 Cooling System >> Coolant Pump/Coolant Thermostat >> Overview - Coolant Pump/Coolant Thermostat >> OVERVIEW - COOLANT PUMP/COOLANT THERMOSTAT, ENGINE WITH Engine Temperature Control Actuator -N493-

OVERVIEW - COOLANT PUMP/COOLANT THERMOSTAT, ENGINE WITH Engine Temperature Control Actuator -N493-

WARNING: This page is about a different variant/trim than selected.
Fig 1: Coolant Pump/Coolant Thermostat Exploded View
GWWA19-11883Courtesy of AUDI OF AMERICA, LLC
  1. Connection
  2. O-Ring
    • Replace after removing.
    • Coat with coolant
    • Quantity: 2
  3. Centering Pin
  4. Bolt
    • Tightening Specifications and Sequence. Refer to Fig 3.
  5. Seal
    • Always replace after removing
  6. Coolant Pump
  7. Bolt
    • Tightening specification and sequence. Refer to Fig 3.
  8. Toothed Belt
  9. Bolt
    • 9 Nm
  10. Toothed Belt Guard
  11. Bolt
    • 10 Nm + 90°
    • Always replace after removing
    • Left-hand thread
  12. Toothed Belt Sprocket
    • Note the installation position
  13. Seal
  14. Intake Side Balance Shaft
  15. Seal
    • Always replace after removing
  16. Engine Temperature Control Actuator -N493-

Engine Temperature Control Actuator -N493 - Tightening Specification and Sequence 

Fig 2: Engine Temperature Control Actuator Tightening Sequence
GWWA19-11451Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts to 9 Nm in the following sequence: -1 to 5-.

Coolant Pump - Tightening Specification and Sequence 

Fig 3: Coolant Pump - Tightening Sequence
GWWM19-10052Courtesy of AUDI OF AMERICA, LLC

-- Tighten the coolant pump bolts to 9 Nm in a -1 to 4- sequence.