Upper Oil Pan

Upper Oil Pan

Special tools, testers and auxiliary items required

• Hand Drill with Plastic Brush Attachment

• Silicone Adhesive Sealant (D 176 501 A1)

• Protective Eyewear

Removing






- Remove the engine. Refer to => [ Engine, Removing ] Engine, Removing.

- Separate the engine and transmission. Refer to => [ Engine, Removing from the ] Engine, Removing from the Scissor Lift Table (VAS 6131).

- Secure the engine to the assembly stand. Refer to => [ Engine, Securing to the ] Engine, Securing to the Engine and Transmission Holder (VAS 6095).

- Remove the drive plate. Refer to => [ Drive Plate ] Drive Plate.

- Remove the shim behind it.

- Remove the timing chain covers. Refer to => [ Timing Chain Covers ] Timing Chain Covers.

- Remove the oil pump and balance shaft timing chain. Refer to => [ Balance Shaft and Oil Pump Chain ] Balance Shaft and Oil Pump Chain.

- Remove the belt pulley side sealing flange. Refer to => [ Front Sealing Flange ] Service and Repair.

- Remove the lower oil pan. Refer to => [ Lower Oil Pan ] Lower Oil Pan.

- Remove the oil pump. Refer to => [ Oil Pump ] Oil Pump.

- Remove the upper oil pan bolts - 1 through 4 -.






- Pry the upper oil pan from the alignment pins in the cylinder block.

Installing

• Replace gaskets, seals and O-rings.

- Remove any sealant from the grooves in the upper oil pan and from the sealing surfaces.

Wear protective eyewear.

- Remove any sealant residue from the pan using a rotating brush, for example, using a hand drill with a plastic brush attachment (wear eye protection).






- Clean the sealing surfaces so they are completely free of any oil or grease.

- Cut the sealant tube nozzle at the front mark (nozzle diameter: approximately 0.12 in).






- Insert the seals - 1 and 2 - in the upper oil pan.






- Apply the beads of sealant - arrows - to the clean sealing surface on the upper oil pan as illustrated.

• The grooves - arrows - in the sealing surfaces must be completely filled with sealant.

• The sealant beads must be 1.5 to 2.0 mm above the sealing surface.

• The sealant bead must not be thicker than specified, otherwise the sealant could enter the oil pan and clog the oil pump strainer.

• The upper oil pan must be installed within 5 minutes after application of the sealant.

- Position the upper oil pan in place and tighten the bolts - 1 through 4 - to 5 Nm in a diagonal sequence.






- Tighten the bolts - 1 through 4 - in a diagonal sequence.

Further installation is in the reverse order of removal.