Volkswagen Workshop Service and Repair Manuals > Golf Mk5 > Power unit | 4-cylinder injection engine (1.8 and 2.0 l engine, chain drive) | Engine cooling | Coolant pump, thermostat, coolant pipes

Removing and installing coolant pump

Removing

Proceed as follows:

–	Remove small coolant pipe → Chapter.

–	Disconnect electrical connector -1- at throttle valve module -J338-.

–	Remove bolts -arrows- and detach throttle valve module -J338-.

–	Remove toothed belt for coolant pump → Chapter.

–	Remove intake manifold support (remove securing nut -1- and bolt -2-).

–	Unscrew bonded rubber mountings for intake manifold support at intake manifold.

–	Remove coolant temperature sender -G62-.

Inserted version → Anchor.

Screwed version → Anchor.

–	Remove bolts -1 … 5-.

–	Detach coolant pump from centring pin and pull off engine oil cooler.

Installing

Note

t	Renew seals and O-rings.

t	Fit coolant pump without coolant temperature sender. The coolant temperature sender slightly protrudes from coolant pump and makes the installation more difficult.

–	Coat O-rings -4- with coolant.

–	Check whether the two centring pins are fitted in the cylinder block; install if necessary.

–	Fit connecting piece -2- into engine oil cooler -1-.

–	First, push coolant pump -3- onto connecting piece and then fit it onto centring pin in cylinder block.

–	Using a mirror, check that the coolant pump is correctly »seated« on the centring pins.

–	Tighten bolts in the sequence -1 … 5-.

Note

Detach protective cap -arrow- if a new coolant pump has been fitted.

–	Install coolant temperature sender -G62- → Chapter.

Inserted version → Anchor.

Screwed version → Anchor.

Further assembly is performed in the reverse order of removal.

Volkswagen Workshop Service and Repair Manuals