Oil Pan: Service and Repair

Oil pan, removing and installing

Special tools, testers and auxiliary items required

^ Electric drill with plastic brush attachment
^ Silicone sealant D 176 404 A2

Removing





- Remove center sound insulation panel (arrows).
- Drain engine oil.





- Remove bracket -2- for oil return line.
- Remove oil return line from oil pan.
- Remove oil pan.

Note:
Use special tool 3185 to loosen and tighten oil pan screws. Remove using 3249 hex ball socket.

- Remove oil pan (if necessary, loosen pan by lightly tapping with rubber mallet).
- Remove sealant remaining on cylinder block with flat scraper.
- Remove remaining sealant from oil pan (with rotating plastic brush or similar).

WARNING!
Wear eye protection.

- Clean sealing surfaces: they must be free of oil and grease.

Installing

Note:
The oil pan must be installed within 5 minutes after applying the silicone sealant D 176 404 A2.





- Cut off nozzle on tube at front marking (nozzle diameter approx. 3 mm).

Thickness of sealant bead: 2-3 mm

Note:
The bead of sealant must not be thicker than 3 mm, otherwise excess sealant will enter the oil pan and obstruct the strainer in the oil intake line.





- Apply silicone sealant to clean sealing surface on oil pan as illustrated. Illustration shows position of sealant bead on cylinder block.

Note:
Apply sealant bead with particular care around rear sealing flange (arrows).

- Install oil pan immediately and bolt to cylinder block. Start by tightening all bolts by hand.
- Tighten 3 bolts securing oil pan to transmission.
- Tighten bolts securing oil pan to cylinder block in two stages in diagonal sequence.

Tightening torques





Note:
^ When installing the oil pan with the engine out of the vehicle, ensure that the oil pan is flush with the cylinder block at the flywheel end.
^ After installing the oil pan, wait for about 30 minutes for the sealant to dry before putting in engine oil.