audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing rear sealing flange > < Replacing crankshaft oil seal on pulley end
4-cylinder Engine (2-valve), Mechanical Components
Removing and installing sealing flanges and flywheel/drive plate
Removing and installing front sealing flange
 
W00-0387

Special tools, workshop equipment, and other items required

  • ◆ Counterhold 3415
  • ◆ Electric drill with plastic brush attachment
  • ◆ Protective goggles
  • ◆ Silicone sealant

=> Parts List

 
N13-0401

Removing

  • ● Engine in vehicle
  • ‒ Remove toothed belt .
  • ‒ → Remove crankshaft toothed belt sprocket. Counter hold sprocket with 3415.
 
A13-0517
  • ‒ → Unscrew bolts -1...10-.
  • ‒ Lever off sealing flange and remove.
  • ‒ Drive out oil seal with flange removed.

 
A17-0030

Installing

Note:

Place a cloth over the open part of the oil pan.

  • ‒ Carefully remove any residual sealant from cylinder block and oil pan.
  • ‒ → Remove sealant residues from sealing flange, e.g. with rotating plastic brush or similar.
Important
Wear protective goggles.
  • ‒ Clean sealing surfaces: they must be free of oil and grease.
 
A17-0081

Note:

The sealing flange must be installed within 5 minutes after applying silicone sealant.

  • ‒ → Cut off nozzle of tube at front marking (ø of nozzle approx. 3 mm).

 
A13-0518
  • ‒ → Apply a thin bead of silicone sealant at the edge between the cylinder block and the oil pan -arrows-.
 
A17-0028
  • ‒ → Apply the bead of silicone sealant -arrow- onto the clean sealing surface of the sealing flange, as illustrated (arrow).
    • ‒ Thickness of sealant bead: 2...3 mm

Note:

The bead of sealant must not be thicker than prescribed, as otherwise excess sealant will enter the oil pan and obstruct the strainer in the oil intake manifold.

 
A13-0519
  • ‒ → Coat the lower sealing surface at the sealing flange lightly with silicone sealant -hatched area-.
  • ‒ Carefully push the sealing flange onto the dowel pins at the engine block.

Note:

To fit sealing flange with the oil seal already installed, use guide sleeve T10053/1.

 
A13-0517
  • ‒ Tighten bolts in the specified sequence:
    • ‒ → Tighten bolts -1...6-.
    • ‒ Tighten bolts -7...10-.
  • ‒ Install crankshaft oil seal => Page 13-51.
  • ‒ Install toothed belt (adjust valve timing) => Page 13-30.

Tightening torque

Component

Nm

Sealing flange to cylinder block

15

Removing and installing rear sealing flange > < Replacing crankshaft oil seal on pulley end