Volkswagen Workshop Service and Repair Manuals > Golf Mk5 > Power unit | 4-cylinder injection engine (1.4 l direct injection engine, turbocharger) | Engine cooling | Removing and installing parts of cooling system

Removing and installing coolant pump

Special tools and workshop equipment required

t	Refractometer -T10007-

t	Hose clip pliers -VAS 6340-

t	Torque wrench (5…50 Nm) -V.A.G 1331-

t	Water pump wrench -V.A.G 1590-

–	Due to modification to securing bolts for coolant pump pulley, the three rounded corners must be filed out to minimum a = 1 mm.

Modifying water pump wrench V.A.G 1590

Note

t	The integrated coolant pump seal must not be separated from the coolant pump.

t	Damaged or leaking coolant pumps must be replaced complete with seal.

Removing

–	Drain coolant → Chapter.

–	Remove poly V-belt → Chapter.

–	Remove bracket -1-.

Note

As the bracket is only used during the vehicle production, it need not be reinstalled.

–	Hold pulley with water pump wrench -V.A.G 1590-.

–	Unscrew securing bolts -arrows- for coolant pump pulley and remove pulley.

–	Unscrew securing bolts -arrows- for coolant pump -1- and pull pump off cylinder block.

Installing

Installation is carried out in the reverse order. When installing, note the following:

–	Install coolant pump in cylinder block.

–	Tighten securing bolts to 9 Nm.

–	Tighten coolant pump belt pulley to 20 Nm.

–	Install poly V-belt → Chapter.

–	Replenish coolant → Chapter.

Volkswagen Workshop Service and Repair Manuals