Sealing Flange, Transmission Side

Sealing Flange, Transmission Side

Special tools, testers and auxiliary items required

• Assembly Tool (T10134)

• Torque Wrench (5-50 Nm) (V.A.G 1331)

• Tool Insert AF 24 (V.A.G 1332/11)

• Caliper Gauge

• Three M6 x 35 Bolts

• Two M7 x 35 Bolts

=> [ Sealing Flange with Sensor Wheel, Removing ]

=> [ Sealing Flange with Sensor Wheel, Pressing In ]

=> [ Installing the Seal with Sensor Wheel to the ]

=> [ Installing the with Sealing Flange to the Crankshaft ]

=> [ Bolting the to the Crankshaft ]

=> [ Installing the Sensor Wheel to the Crankshaft using the ]

=> [ Sensor Wheel to Crankshaft, Checking the Installed Position ]

=> [ Sensor Wheel, Pressing On Again ]

Sealing Flange with Sensor Wheel, Removing

- Remove the transmission.

- Remove the flywheel.

- Remove the intermediate plate.

- Rotate the crankshaft to Top Dead Center (TDC) for cylinder 1, as illustrated.






- Remove the oil pan. Refer to => [ Oil Pan ] Oil Pan.

• The engine is shown removed, in the illustrations.

• The procedures are the same with the engine removed or installed.

- Remove the engine speed sensor - arrow -.






- Remove the sealing flange bolts.

• The sealing flange and sensor wheel are pressed off the crankshaft using three M6 x 35 mm bolts.

- Install the three M6 x 35 mm bolts in the threaded holes - arrows - in the sealing flange.






- Install the bolts into the sealing flange alternating (Max. 180° per bolt) and press it and the sensor wheel off the crankshaft.

Sealing Flange with Sensor Wheel, Pressing In

• The sealing flange with a Polytetrafluoroethylene (PTFE) seal is equipped with a sealing lip support ring. This support ring serves the same function of an assembly sleeve and must not be removed before installation.

• The sealing flange and sensor wheel must not be separated or rotated after being removed from the replacement part packaging.

• The sensor wheel retains the installed position via being located on the locating pin of the assembly tool (T10134).

• The sealing flange and seal are one unit and may only be replaced together with the sensor wheel.

• The assembly tool (T10134) retains the installed position to the crankshaft via a guide pin, which is guided into the bore in the crankshaft.

Assembly tool (T10134) :






A Tension surface
B Nut
C Assembly bell
D Locating pin
E Hex socket head bolt
F Guide pin for diesel engines (black handle)
G Guide pin for gas engines (red handle)

Installing the Seal with Sensor Wheel to the Assembly Tool (T10134)

- Screw on the nut - B - until shortly before the tension surface - A - of the threaded spindle.






- Tension the assembly tool (T10134) in a vise on the tension surface - A - of the threaded spindle.






- Push the assembly bell - C - downward so that it rests on the nut - B - - arrow -.

- Install the hex nut on the threaded spindle until the inner section of the assembly tool is level with the assembly bell.

- Remove the clip - arrow - from the new sealing flange.






• The sensor wheel must not be removed from or rotated in the sealing flange.

- The locating pin - A - on the sensor wheel - C - must align with the mark - B - on the sealing flange.






- Place the front side of the sealing flange onto a clean level surface.

- Press the sealing lip support ring - A - in the - direction of the arrow - until it rests on the level surface.






- The upper edge of the sensor wheel and the front edge of the sealing flange must align - arrows -.






- Place the front side of the sealing flange on the assembly tool (T10134) so the locating pin - B - is positioned in the bore - A - on the sensor wheel.






• Make sure that the entire sealing flange is positioned flat on the assembly tool.

- While tightening the knurled bolts - A -, press the sealing flange and sealing lip support ring - B - onto the surface of the assembly tool (T10134) so that the locating pin can no longer slip out of the bore of the sensor wheel.






• Make sure that, when installing the sealing flange, the sensor wheel remains located in the assembly tool.

Installing the Assembly Tool (T10134) with Sealing Flange to the Crankshaft

• Crankshaft journal must be free of oil and grease.

• The engine is at Top Dead Center (TDC) for cylinder 1.

- Screw the nut - B - to the end of the threaded spindle.






- Push the threaded spindle on the assembly tool (T10134) in the - direction of the arrow - until the nut - B - rests on the assembly bell - A -.

- Position the flattened side of the assembly bell toward the oil pan sealing surface side of the crankcase.

- Secure the assembly tool (T10134) onto the crankshaft using the socket head hex bolts - A -.






• Screw the socket head hex bolts - A - approximately 5 threads into the crankshaft.

- Install the two M7 x 35 mm bolts (or bolts of a comparable length) - A - to guide the sealing flange onto the cylinder block.






Bolting the Assembly Tool (T10134) to the Crankshaft

- Push the assembly bell - C - in the - direction of the arrow - until the sealing lip support ring - B - rests on the crankshaft - A -.






- Push the guide pin for diesel engines (black handle) - D - into the crankshaft bore. Thereby the sensor wheel is retained in its final installed position.

• Do not insert the guide pin for gas engines (red handle) - F - into the crankshaft threaded bore.

- Hand-tighten both socket head hex bolts of the assembly tool.

- Install the nut - E - onto the threaded spindle by hand, until it rests on the assembly bell - C -.

Installing the Sensor Wheel to the Crankshaft using the Assembly Tool (T10134)

- Tighten the nut on the assembly tool (T10134) to 35 Nm using the torque wrench (5-50 Nm) (V.A.G 1331) and the tool insert AF 24 (V.A.G 1332/11).






• After tightening the nut to 35 Nm, a minimal air gap must still be present between the cylinder block and sealing flange.

Sensor Wheel to Crankshaft, Checking the Installed Position

- Screw the nut - E - to the end of the threaded spindle.






- Remove the two bolts - A - from the cylinder block.

- Remove the 3 knurled bolts - B - from the sealing flange.

- Remove the hex socket head bolts - A - and remove the assembly tool (T10134).






- Remove the sealing lip support ring.

- The installed position of the sensor wheel to the crankshaft is exact, if a gap - a - of 0.5 mm is present between the crankshaft flange - A - and sensor wheel - B -.






- Set a depth gauge onto the crankshaft.






- Measure the distance - a - (see graphic N13-10035) between the crankshaft and the sensor wheel.

If dimension - a - is too small:

- Press the sensor wheel on again. Refer to => [ Sensor Wheel, Pressing On Again ].

If dimension - a - is attained:

- Tighten the sealing flange bolts in an alternating diagonal sequence to 15 Nm.

- Install the engine speed sensor - arrow - and tighten the bolt to 5 Nm.






- Install the oil pan. Refer to => [ Oil Pan ] Oil Pan.

- Install the intermediate plate.

- Install the flywheel with new bolts and tighten the bolts to 60 Nm + an additional 90° (1/4) turn.

Sensor Wheel, Pressing On Again

- Secure the assembly tool (T10134) onto the crankshaft using the socket head hex bolts - A -.






- Hand tighten both of the socket head hex bolts.

- Push the assembly tool (T10134) onto the sealing flange by hand.

- Install the nut - E - onto the threaded spindle by hand, until it rests on the assembly bell - C -.






- Tighten the nut on the assembly tool (T10134) to 40 Nm using the torque wrench (5-50 Nm) (V.A.G 1331) and the insert tool AF 24 (V.A.G 1332/11).






- Check the installed position of the sensor wheel on the crankshaft again. Refer to => [ Sensor Wheel to Crankshaft, Checking the Installed Position ].

If dimension - a - is too small:

- Tighten the nut on the assembly tool (T10134) to 45 Nm.

- Check the installed position of the sensor wheel on the crankshaft again. Refer to => [ Sensor Wheel to Crankshaft, Checking the Installed Position ].