Oil Pan: Service and Repair

Sump, 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 noise insulation panel - arrows -.
^ Drain engine oil.





^ Unscrew bracket - 2 - for oil return line.
^ Unscrew oil return line from oil pan.
^ Unscrew oil pan.

Notes: Use special tool 3185 to loosen and tighten oil pan screws. Unscrew 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 sump (with rotating plastic brush or similar).

WARNING: Wear eye protection.

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

Installing

Notes: The sump must be installed within 5 minutes after applying the silicone sealant D176 404 A2.





^ Cut off nozzle on tube at front marking (nozzle diameter approximately 3 mm).
^ Thickness of sealant bead: 2 - 3 mm

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





^ Apply silicone sealant to the clean sealing surface on the sump as illustrated. The illustration shows the position of the sealant bead on the cylinder block.
^ Apply the sealant bead with particular care around the rear sealing flange - arrows -.
^ Fit the sump immediately and bolt to cylinder block. Start by tightening all the bolts by hand.
^ Tighten the 3 bolts securing sump to gearbox.
^ Tighten bolts securing sump to cylinder block in two stages in diagonal sequence.





Tightening torques

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