Volkswagen Workshop Service and Repair Manuals > Golf Mk4 > Engine | 4-cylinder injection engine | Engine lubrication | Removing and installing parts of lubrication system

Removing and installing oil sump

Special tools and workshop equipment required

t	T-bar and socket, 10 mm -3185-

t	Allen key, long reach -T10058-

t	Hand drill with plastic brush attachment

t	Silicone sealing compound -D 176 404 A2-

Removing

–	Remove right noise insulation tray: → Rep. Gr.50.

–	Drain engine oil.

Note

Observe environmental regulations for disposal.

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

–	Loosen or tighten sump bolts using 10 mm T-bar and socket -3185-. Loosen or tighten only flywheel-end bolts with Allen key, long reach -T10058-.

–	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 from oil 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 silicone sealing compound -D 176 404 A2-.

t	The sealing flange must be installed within 5 minutes of applying the silicone sealing compound -D 176 404 A2-.

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

–	Apply silicone sealing compound -D 176 404 A2-, as shown, to clean sealing surface of oil sump. Sealant bead must be:

t	2...3 mm thick.

t	Run sealant 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 may block the oil suction line strainer.

–	Take extra care when applying sealing compound bead at points marked by -arrows-. (Illustration shows position of sealing compound bead on cylinder block.)

–	Fit oil sump immediately and tighten bolts as follows:

1 -	Tighten all bolts between sump and cylinder block only very lightly and in diagonal sequence.

2 -	Tighten bolts between sump and gearbox lightly.

3 -	Further tighten all bolts between sump and cylinder block lightly and in diagonal sequence.

4 -	Tighten bolts between sump and gearbox to 45 Nm.

5 -	Tighten all bolts between sump and cylinder block to 15 Nm in diagonal sequence.

Note

t	When installing sump with engine out of vehicle, ensure that sump is flush with cylinder block at flywheel end.

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

Further assembly is basically the reverse of the dismantling procedure.

Volkswagen Workshop Service and Repair Manuals