Cooling System Components (Engine Side)
WARNING: This page is about a different variant/trim than selected.
NOTE:
The following list refers to items in Fig 1.
- 15 Nm
- Toothed belt
- Mark direction of rotation before removing
- Check for wear
- Do not kink
- Removing, installing and tensioning, see TOOTHED BELTS, REMOVING, INSTALLING AND TENSING .
- Coolant pump
- Check for ease of movement
- If damaged or leaking replace complete
- Removing and installing, see COOLANT PUMP, REMOVING AND INSTALLING .
- O-ring
- Replace
- Coolant thermostat
- Checking: heat-up thermostat in water
- Opening commences approx. 87° C
- Ends approx. 102° C
- Opening lift min. 7 mm
- O-ring
- Replace
- Connection
- To heat exchanger
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .
- O-ring
- Replace
- Connector
- 4 pin
- Engine Coolant Temperature (ECT) sensor -G62-
- With Engine coolant temperature (ECT) gauge sensor -G2-
- For engine control module
- If necessary release pressure in cooling system before removing
- Checking:
See 1.8 Liter 4-Cyl. 5V Turbo Fuel Injection & Ignition .
- Retaining clip
- Check seated securely
- Upper coolant hose
- Secured to radiator with retaining clip
- Check securely seated
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .
- Lower coolant hose
- Secured to radiator with retaining clip
- Check securely seated
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .
- Oil cooler
- Removing and installing, see LUBRICATION SYSTEM COMPONENTS, REMOVING AND INSTALLING .
- From heat exchanger
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .
- Lower coolant pipe
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .
- 10 Nm
- Cap
- Check with cooling system tester V.A.G. 1274 and adapter V.A.G. 1274/9
- Test pressure 1.4 to 1.6 bar
- Seal
- Replace if damaged
- 10 Nm
- Expansion tank
- Carry out leak test of cooling system with cooling system tester V.A.G. 1274 and adapter V.A.G1274/8
- To turbocharger
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .
- 15 Nm
- To upper coolant hose
- Only engine code AWP with automatic transmission
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .
- After-Run coolant pump - V51-
- Only engine code AWP with automatic transmission
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .
- Checking, see AFTER-RUN COOLANT PUMP, CHECKING .
- From turbocharger
- Only engine code AWP with automatic transmission
- Coolant hose connection diagram, see COOLANT HOSE CONNECTION DIAGRAM .