Table of contents: Removal ↓ Installation ↓
Removal
Remove the engine hood. Remove the oil dipstick from the guide tube.
Remove the guide tube "1" of the oil level dipstick; to do this, press the locking buttons. Remove the oil filler pipe "2" from the oil filler tank. Remove the exhaust pipe.
Unscrew the "arrow" bolt, remove the support with the guide tube for the oil level dipstick and the oil filler tube from the oil pan.
Disconnect plug connector "1" of the oil level and temperature sensor "G266".
Install an oil extraction device "V.A.G 1782" under the engine and drain the oil. Unscrew the bolts "arrows" connecting the oil pan and gearbox. Crosswise, loosen and unscrew the screws of the oil pan "1". Carefully separate the oil pan from the gluing area.
Installation
Installation is in reverse order, replacing the O-ring on the dipstick guide tube. Seal open engine parts. Remove sealant residue from the oil pan and cylinder block, for example with a rotating brush with plastic bristles. Clean the mounting surfaces; there should be no oil or grease on them. Cut off the tube tip at the front mark (hole approx. 2mm).
Caution! Risk of clogging lubrication system channels if there is too much sealant. The sealant bead must not be thicker than the specified size.
Apply a bead of "arrow" sealant to the clean seating surface of the oil pan, as shown in the figure. Thickness of the sealant bead: 2...3 mm.
Instructions: Apply sealant especially carefully in the area of the sealing flange. Install the oil pan within 5 minutes after applying the sealant.
Install the oil pan and tighten the bolts. If the oil pan is installed with the engine removed, make sure that the oil pan on the gearbox side is flush with the cylinder block. After installing the oil pan, allow the sealant to dry for approx. 30 minutes. Only then can the oil be added. Install in reverse order, observing the following: Install the support with the guide tube for the oil dipstick and the oil filler tube. Install the intake tube. Fill with oil and check the oil level.
(The original article is posted on the resource AudiManual.ru)