Group 19, Cooling

WARNING: This page is about a different car, the 2014 Porsche Cayenne, 2013 Porsche Cayenne, 2012 Porsche Cayenne, and 2011 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Coolant Pump Components Location With Torque Specification

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

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

Fig 2: Coolant Pump Screws Tightening Sequence

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Tightening sequence for coolant pump

Fig 3: Coolant Guide Components Location With Torque Specification

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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

Fig 4: Thermostat Housing And Coolant Regulator Components Location With Torque Specification

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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

Fig 5: Thermostat Housing Screws Tightening Sequence

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Tightening sequence for thermostat housing

Fig 6: Coolant Return Components Location With Torque Specification - Turbo Engine

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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

Fig 7: Coolant Return Components Location With Torque Specification - Naturally Aspirated Engine

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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

Fig 8: Coolant Supply Components Location With Torque Specification - Turbo Engine

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

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

Fig 9: Coolant Supply Components Location With Torque Specification - Naturally Aspirated Engine

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

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

Fig 10: Ventilation Components Location With Torque Specification

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Ventilation

1	Vent line
2	Screw, M6 x 16 > Tightening torque 10 (7.5 ft lb.) Nm

Fig 11: Temperature Sensor Components Location With Torque Specification

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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
Courtesy of PORSCHE CARS NORTH AMERICA, INC. Component overview of coolant reservoir

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