Oil Pan: Service and Repair

Oil Pan

Special tools, testers and auxiliary items required

• T Bar and Socket 10 mm (3185)

• Hex Ball Socket (T10058)

• Hand drill with plastic brush attachment

• Sealant, refer to the electronic parts catalog ETKA

• Protective eyewear

Removing

- Drain engine oil.

- A3 Cabrio: Remove the noise insulation frame - arrow -.





- Loosen the hose clamp - 2 -, lift the retaining clamp - 1 - and remove the air guide hose.





- Remove bolts - arrows -.





- Free up the coolant hose - 3 -.

- Loosen the hose clamp - 2 -.

- Disconnect the connector - 1 - on the charge air pressure sensor (G31) and then remove the air guide pipe.

- Remove the bolt - arrow - and move the EGR cooler pump (V400) to the side.





• Ignore - 1, 2 and 3 -.

- Remove the bolt - arrow - on the left air guide pipe.





- Disconnect the connector - arrow - on the oil level thermal sensor (G266).





- Loosen the fasteners - arrows - and remove the oil pan noise insulation - 1 -.





- Remove the bolts - arrows - that connect the oil pan to the transmission.





- Loosen and remove the bolts - 1 through 20 - diagonally.

- Carefully loosen the oil pan from the bonding.

Installing


Risk of contaminating lubricating system and bearing.

• Cover open parts of engine.


Risk of eye injury.

• Wear safety glasses.

- Remove the sealant residue on the cylinder block and the oil pan, for example using a rotating plastic brush.





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

• Note the expiration date of the sealing compound.

- Cut the tube nozzle at the front marking (nozzle diameter approximately 2 mm).






The lubrication system could be plugged with excess sealant.

• Do not apply sealant bead thicker than indicated.

- Apply bead of sealant as illustrated to the clean sealing surface on the oil pan.

• Sealant bead thickness: 2 to 3 mm.





• Being especially careful, apply a bead of sealant around the sealing flange - arrows -.

• The oil pan must be installed within 5 minutes after applying the sealant.

- Position the oil pan and tighten the bolts => [ Oil Pan - Tightening Specifications
and Sequence ] Oil Pump, Oil Pan and Balance Shaft Module Assembly Overview.





• The oil pan must be flush with the intermediate plate on the transmission flange.

• When installing the oil pan to a removed engine, make sure that the oil pan is positioned flush with the cylinder block on the flywheel side.

• Allow the sealant to dry for approximately 30 minutes after installing the oil pan. Only after then may the engine oil be replenished.

- Install the EGR cooler pump. Refer to => [ Coolant Pipes, Coolant Temperature Sensors and Coolant Pump Assembly Overview ] Coolant Pipes, Coolant Temperature Sensors and Coolant Pump Assembly Overview.

- Install the left air guide pipe. Refer to => [ Charge Air Cooler Assembly Overview ] Charge Air Cooler Assembly Overview.

- Install the air guide hose with the connector coupling => [ Install the Air Guide Hoses
with the Coupling ] Charge Air Cooler Assembly Overview.

- Install the noise insulation frame and the noise insulation.

- Fill engine oil and check oil level.