Coolant Pump And Coolant Thermostat Overview

Fig 1: Identifying Coolant Pump And Coolant Thermostat Overview

Courtesy of AUDI OF AMERICA, LLC

1. Coolant Thermostat with Connection
   • Removing and installing, refer to CONNECTING PIECE WITH COOLANT THERMOSTAT 
2. Coolant Hose
   • From the radiator at the bottom and on the right side
3. Bolt
   • 9 Nm
4. Coolant Hose
   • To the left top coolant pipe
5. Coolant Hose
   • From the Exhaust Gas Recirculation Cooler Pump -V400-
6. Coolant Thermostat for the Exhaust Gas Recirculation with Connection
   • Removing and installing, refer to EXHAUST GAS RECIRCULATION COOLANT THERMOSTAT AND CONNECTION 
7. O-ring
   • Replace
8. Seal
   • Replace
9. Bolt
   • 9 Nm
10. Coolant Pump
    • Removing and installing, refer to COOLANT PUMP 
11. Bolt
    • Tightening specification and sequence Fig 2
12. Ribbed Belt Pulley for Coolant Pump
    • Installation position: the word "vorne" (front) faces the direction of travel
13. Bolt
    • 23 Nm

Fig 2: Identifying Coolant Pump Bolts -Arrows-

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the coolant pump bolts -arrow- in a diagonal sequence in stages to 9 Nm.

Fig 3: Identifying Fuel Cooler Pump Screw -Arrow-

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the fuel cooler pump bracket bolt -arrow- to 23 Nm.