Volkswagen Workshop Service and Repair Manuals > Golf Mk4 > Power unit | 6-cylinder injection engine | Engine lubrication | Removing and installing parts of lubrication system

Removing and installing oil sump

Special tools and workshop equipment required

t	Torque wrench -V.A.G 1331-

t	Hand drill with plastic brush attachment

t	Flat scraper

t	Eye protection

t	Silicone sealant D 176 404 A2

Removing

–	Remove centre, left and right insulation trays: → General body repairs, exterior; Rep. gr.50

–	Pull 3-pin connector off oil level and oil temperature sender -G266-.

–	Unbolt secondary air pump motor -V101- retainer from sump.

–	Drain engine oil.

Note

Observe environmental regulations for disposal.

–	Remove sump.

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

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

–	Remove sealant residue on sump using a rotating brush, e.g. an electric drill with a plastic brush attachment (wear safety goggles).

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

Installing

Note

t	Observe expiry date of sealing compound.

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

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

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

t	2…3 mm thick.

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

Note

The sealant bead must not be thicker, otherwise excess sealing compound will enter the oil sump and may block the oil suction line strainer.

–	Apply silicone sealing compound bead as shown to the clean sealing surface of the sump.

–	Install sump immediately and tighten all sump bolts lightly.

–	Tighten oil sump bolts to 12 Nm.

–	Tighten bolts securing sump to gearbox 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 sequence.

Volkswagen Workshop Service and Repair Manuals