Oil Pan: Service and Repair
Oil pan, removing and installing
Special tools, testers and auxiliary items required
- T Bar and Socket 10 mm -3185-
- Multi-point socket -3249-
- Torque wrench -V.A.G 1331-
- Silicone sealant -D 176 404 A2-
- Hand drill with plastic brush attachment
- Protective glasses
- Flat scraper
Removing
- Remove sound insulation tray. Sound Proofing / Insulation
- Drain engine oil.
Note: Observe disposal regulations!
- Remove turbocharger oil return pipe from oil pan.
- Loosen oil pan bolts with T Bar and Socket 10 mm 3185. (Remove with Socket 3249.)
- Remove oil pan. Loosen oil pan with light blows using a rubber headed hammer if necessary.
- Remove sealant residue from cylinder block with a flat scraper.
- Remove remaining sealant at oil pan using a rotating brush, e.g. a drill with plastic brush attachment (wear protective glasses).
- Clean sealing surfaces. They must be free of oil and grease.
Installing
Note:
Note the expiration date of the sealing compound.
The oil pan must be installed within 5 minutes after application of silicone sealant.
- Cut off nozzle on tube of sealant at front mark (dia. of nozzle approx. 3 mm).
- Apply silicone sealant to clean sealing surfaces of oil pan as shown. Sealing compound bead must be:
2 to 3 mm thick
and run on inside of bolt holes -arrows-.
Note: 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.
- Apply silicon sealant D 176 404 A2 to clean sealing surface as indicated in illustration. (The fig. shows the location of the sealant bead on the cylinder block).
- Install oil pan immediately and tighten all oil pan bolts lightly.
Note: After installing oil pan, allow sealant to dry for approx. 30 minutes. Only after then may the engine oil be replenished.
- Tighten oil pan bolts to 15 Nm.
- Tighten oil pan/transmission bolts to 45 Nm.
The rest of assembly is in reverse order of disassembling.
- Tighten oil pan/oil return line bolts to 10 Nm.