Group 19, Cooling
WARNING: This page is about a different variant/trim than selected.
Coolant pump
| 1 | Coolant pump |
| 2 | Seal; fitted in pump |
| 3 | Screw, M6 x 25 => For details of tightening sequence, see below > Tightening torque 12 (9 ft lb.) Nm |
| A | Direction of travel |
Tightening sequence for coolant pump
Coolant guide
| 1 | Coolant pipe for heater |
| 2 | Screw, M6 > Tightening torque 12 (9 ft lb.) Nm |
| 3 | Sealing ring |
| 4 | Screw plug, M16 x 1.5 > Tightening torque 30 (22 ft lb.) Nm |
| 5 | Screw, M6 > Tightening torque 12 (9 ft lb.) Nm |
| 6 | Coolant guide tube (collection pipe) |
| 7 | Metal seal |
| 8 | Stoppers |
Thermostat housing and coolant regulator
| 1 | Thermostat housing |
| 2 | Screw, M6 x 25 > Tightening torque 12 (9 ft lb.) Nm |
| 3 | Screw, M6 x 25; screwed to fuel high-pressure distributor pipe => see relevant article |
| 4 | Seal for thermostat housing; replace |
| 5 | Thermostat insert; including electric heating element |
Tightening sequence for thermostat housing
Coolant return on turbo engine
| 1 | Connection piece on generator |
| 2 | Screw for connection piece > Tightening torque 10 (7.5 ft lb.) Nm |
| 3 | Screw, M6 x 20 > Tightening torque 10 (7.5 ft lb.) Nm |
| 4 | Coolant return line |
| 5 | Coolant return hose assembly |
| 6 | Holder |
| 7 | Screw, M6 Aluminium screw ; always use new aluminium screws > Initial tightening 4 (3 ft lb.) Nm and > Final tightening 90° |
| 8 | Clip |
Coolant return on naturally aspirated engine
| 1 | Connection piece on generator |
| 2 | Screw for connection piece > Tightening torque 10 (7.5 ft lb.) Nm |
| 3 | Screw, M6 x 20 > Tightening torque 10 (7.5 ft lb.) Nm |
| 4 | Coolant return line |
| 5 | Coolant return hose assembly |
| 6 | Holder |
| 7 | Screw, M6 Aluminium screw ; always use new aluminium screws > Initial tightening 4 (3 ft lb.) Nm and > Final tightening 90° |
| 8 | Clip |
Coolant supply on turbo engine
| 1 | Screw, M6; coolant line to collection pipe > Tightening torque 10 (7.5 ft lb.) Nm |
| 2 | Coolant pipe |
| 3 | Screw for connection piece > Tightening torque 10 (7.5 ft lb.) Nm |
| 4 | Connection piece on generator |
| 5 | Coolant supply hose for oil/coolant heat exchanger |
| 6 | Coolant supply hose to generator |
Coolant supply on naturally aspirated engine
| 1 | Screw, M6; coolant line to collection pipe > Tightening torque 10 (7.5 ft lb.) Nm |
| 2 | Coolant pipe |
| 3 | Screw for connection piece > Tightening torque 10 (7.5 ft lb.) Nm |
| 4 | Connection piece on generator |
| 5 | Coolant supply hose for oil/coolant heat exchanger |
| 6 | Coolant supply hose to generator |
Ventilation
| 1 | Vent line |
| 2 | Screw, M6 x 16 > Tightening torque 10 (7.5 ft lb.) Nm |
Temperature sensor
| 1 | Temperature sensor in engine compartment |
| 2 | Grommet |
| 3 | Temperature sensor > Tightening torque 30 (22 ft lb.) Nm |
TIGHTENING TORQUE SPECIFICATIONS
| Location | Description | Type | Basic value | Tolerance |
|---|---|---|---|---|
| Screw securing water tube to cylinder head | M6 screw | Tightening torque | 10 (7.5 ft lb.) Nm |
TIGHTENING TORQUE SPECIFICATIONS
| Location | Description | Type | Basic value | Tolerance |
|---|---|---|---|---|
| Coolant reservoir | Screw/Item 3 | Tightening torque | 9 (6.5 ft lb.) Nm | |
|
Component overview of coolant reservoir |
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TIGHTENING TORQUE SPECIFICATIONS
| Location | Description | Type | Basic value | Tolerance |
|---|---|---|---|---|
| Fastening screw securing electric fan for engine to radiator frame | Tightening torque | 10 (7.5 ft lb.) Nm |