Volkswagen Workshop Service and Repair Manuals > Golf Mk4 > Power unit | 4-cylinder diesel engine with unit injector | Engine lubrication | Removing and installing parts of lubrication system

Removing and installing sump

Special tools and workshop equipment required

t	Torque wrench -V.A.G 1331-

t	Hand drill with plastic brush attachment

t	Silicone sealant -D 176 404 A2-

t	Protective glasses

t	Flat scraper

Removing

–	Remove centre, left and right insulation tray → Rep. Gr.50

–	Drain engine oil.

Note

Observe environmental regulations for disposal.

–	Pull 3-pin connector off oil level and temperature sender -G266- and unclip line from sump.

–	Remove sump.

–	Loosen oil sump with light blows of a rubber headed hammer if necessary.

–	Remove sealant residue on cylinder block with a flat scraper.

–	Remove sealant residue on sump using rotating brush, e.g. a hand drill with plastic brush attachment (wear protective glasses).

–	Clean sealing surfaces. They must be free of oil and grease.

Installing

Note

t	Observe the use-by date of the sealing compound.

t	The oil sump must be installed within 5 minutes of applying silicone sealing compound.

–	Cut off tube nozzle at forward marking (approx. 3 mm nozzle Ø).

–	Apply silicone sealing compound, as shown, to clean sealing surface on oil sump. Sealant bead must be:

t	2…3 mm thick.

t	Run bead along inner side of bolt holes -arrows-.

Note

The sealing compound bead must not be thicker. Otherwise excess sealing compound will enter the sump and can block the oil suction line strainer.

–	Apply silicone sealant as shown to clean sealing surface of oil sump. (The figure shows the position of the sealant bead on the cylinder block.)

–	Install sump immediately and tighten all sump bolts lightly.

Note

The sump must be flush with cylinder block.

–	Tighten oil sump bolts in diagonal sequence to 15 Nm.

–	Tighten sump/gearbox bolts to 45 Nm.

Note

Let sealing compound dry for approx. 30 minutes after installing sump. Only then fill with engine oil.

Further assembly is basically the reverse of the dismantling procedure.

Volkswagen Workshop Service and Repair Manuals