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Engine cooling > < Testing oil pressure and oil pressure switch

Octavia Mk1

Removing and installing oil pan
Removing and installing oil pan
Special tools and workshop equipment required
t  Socket insert -3249-
t  Hand-held power drill with plastic brush insert
t  Flat scraper
t  Torque wrench 5 ... 50 Nm (e.g. -V.A.G 1331-)
t  Silicone sealant -D 176 404 A2 -
Removing
   
–  Remove noise insulation -arrows-.
–  Drain engine oil.
–  Unbolt oil pan.
  Note
t  Unscrew oil pan bolts at flywheel side with socket insert -3249-.
t  If the screws should fall behind the intermediate plate ( → Chapter, Pos. 12), slightly press off intermediate plate and remove screws after removal of oil pan.
–  Remove oil pan, if necessary release by applying slight blows with a rubber-headed hammer.
–  Use a flat scraper to remove sealant residues on the cylinder block.
  A10-0144
–  Use a rotating plastic brush to remove sealant residues on the oil pan (wear protective goggles).
–  Clean sealing surfaces, they must be free of oil and grease.
Install
  Note
t  The oil pan must be installed within 5 minutes after applying the silicone sealant.
t  Insert the oil pan bolts at flywheel side and tighten with hinged wrench 3249.
t  The assistance of a second mechanic is required to install the oil pan.
  N17-0012
–  Cut off nozzle tube of the silicone sealant -D 176 404 A2- at the front marking (Ø of nozzle approx. 3 mm).
t  Thickness of sealant bead: 2 ... 3 mm
t  The sealant must be run past on the inside in the area of the bolt holes -arrows-.
  Note
The sealant bead must not be thicker than 3 mm otherwise excess sealant may get into the oil pan and clogg the strainer in the oil suction pipe.
  N17-0019
–  Apply silicone sealant to the clean sealing surface of the oil pan, as shown.
  Note
Take particular care when applying sealant bead in the area of the sealing flange at the rear -arrows-.
–  Insert rear oil pan bolt at flywheel side in oil pan and hold with socket insert -3249- Position oil pan on cylinder block in such a way to insert the above mentioned screw first.
–  Tighten the other screws as follows:
1 - Initially tighten all bolts attaching oil pan/cylinder block only very slightly diagonally across.
2 - Tighten the two bolts of oil pan/gearbox slightly.
3 - Tighten all the bolts of oil pan/cylinder block slightly diagonally across.
4 - Tighten the two bolts on the oil pan/gearbox to a torque of 45 Nm.
5 - Tighten all the bolts of oil pan/cylinder block diagonally across to 15 Nm.
  Note
t  When installing the oil pan with the engine removed, ensure that the oil pan is flush with the cylinder block at the flywheel side.
t  After installing the oil pan, allow the sealant to dry for about 30 minutes. Only then may engine oil be filled in.
  S17-0014

Engine cooling > < Testing oil pressure and oil pressure switch