Oil Pump

Oil Pump

Special tools, testers and auxiliary items required

• Engine and Transmission Holder (VAS 6095)

• Securing pin (T40011)

• Silicon sealant D176 501A1

• Protective glasses

Requirements

• Engine removed

• Engine is fastened to Engine and Transmission Holder (VAS 6095).

Removing

- Drain engine oil from lower and upper part of oil pan.

• Observe disposal regulations!

- Remove right engine mount --> [ (Item 18) Engine mount ] Service and Repair.

- Now remove oil filter housing --> [ (Item 12) Oil filter housing ] Service and Repair.

- At left cylinder head, unfasten bracket from oil dipstick guide tube - 1 - and pull guide tube out.





- Unfasten bracket of coolant drain pipe - arrow - at oil pan, upper part. If necessary, loosen banjo bolt - 1 - slightly.





- Remove lower and upper part of oil pan.

- If necessary, loosen oil pan using light blows of a rubber headed hammer or by lightly prying using a pry bar.

- Compress chain tensioner in direction of - arrow - and secure it using locking pin (T40011) - 1 -.

- Remove chain sprocket - 2 - from oil pump.





- Remove three bolts from oil pump --> [ (Item 9) 30 Nm ] Service and Repair and oil intake tube --> [ (Item 22) 25 Nm ] Service and Repair.

- Remove oil pump.

- Remove residual sealant on cylinder block.

- Remove sealant residue from lower and upper part of oil pan using a rotating brush, e.g. a hand drill with a plastic brush attachment (wear eye protection).





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

Installing

- Install oil pump again.

- Bolt chain sprocket to oil pump --> [ Installation position of chain sprocket for
oil pump drive ] Service and Repair

- Pull locking pin (T40011) out from chain tensioner.

- Install upper part of oil pan as follows:

• Note expiration date of sealing compound.

• Oil pan must be installed within 5 minutes of applying silicone sealing compound.

- Cut off nozzle on tube of sealant at front mark (dia. of nozzle approx. 1 mm).

- Apply silicone sealing compound, as shown, to clean sealing surface of upper part of oil pan. Sealing compound bead must be: 1.5 mm thick and run on inside of bolt holes - arrows -





• Sealant bead must not be thicker than specified. Otherwise, excess sealant could get into oil pan and clog strainer in intake line of oil pump.

- Install upper part of oil pan immediately and tighten all oil pan bolts lightly in a "diagonal sequence".

- Then, fasten oil pan bolts - 1 - to 15 Nm and bolts - 2 - to 22 Nm in a "diagonal sequence".





Apply a 1.5 mm thick bead of sealant onto clean sealing surface of lower part of oil pan, as shown - arrow -.





- Install lower part of oil pan immediately and tighten all oil pan bolts lightly in a "diagonal sequence".

- Then, tighten the oil pan bolts in a "diagonal sequence" to 10 Nm.

- Set oil dipstick guide tube in place.

- Fasten coolant drain pipe to upper part of oil pan - arrow - to 10 Nm and then to cylinder block - 1 - to 30 Nm.





• After installing the oil pan the sealant must be allowed to dry for approx. 30 minutes. Only after then may the engine oil be replenished.

The rest of assembly is basically a reverse of disassembling sequence.