Golf Mk4
Parts of cooling system - engine side |
Note
Coolant hose schematic diagram → Chapter |
1 - | To top of expansion tank. |
2 - | Throttle valve positioner |
q | Heated by coolant. |
3 - | O-ring |
q | Renew if damaged. |
4 - | Connections on heat exchanger for heater. |
5 - | Connector |
q | 4-pin |
q | Gold-plated contacts for coolant temperature sender -G62-. |
6 - | Coolant temperature sender -G62- |
q | For engine control unit. |
q | With coolant temperature sender -G2-. |
q | Gold-plated contacts for coolant temperature sender -G62-. |
q | Before removing, relieve pressure in cooling system if necessary. |
7 - | Securing clip |
q | Check for secure seating. |
8 - | From ATF radiator (automatic gearbox) or moulded hose to → Item |
9 - | 25 Nm |
10 - | Coolant pipe |
11 - | 10 Nm |
12 - | To bottom of expansion tank. |
13 - | From ATF radiator (automatic gearbox) or moulded hose to → Item |
14 - | Connection |
15 - | To top of radiator |
16 - | To bottom of radiator |
17 - | Oil cooler |
q | Ensure clearance to adjacent components. |
q | See note → Chapter. |
18 - | 15 Nm |
19 - | Connection |
20 - | Thermostat |
q | Check: heat up thermostat in water bath. |
q | Starts to open at approx. 86°C. |
q | Opening stroke approx. 7 mm. |
q | Remove and install → Chapter. |
21 - | Toothed belt |
q | Before removing, mark direction of rotation. |
q | Check for wear. |
q | Do not kink. |
q | Remove and install, tension → Chapter. |
22 - | Coolant pump |
q | Check for smooth running. |
q | Renew completely if damaged or leaks detected. |
q | Remove and install → Chapter. |
23 - | 15 Nm |
24 - | Rear toothed belt guard |
25 - | 20 Nm |