Crankshaft Assembly Overview

Crankshaft Assembly Overview

• On vehicles with a DSG transmission, the needle bearing must be installed in the rear of the crankshaft.





1 Bolt, 65 Nm + 90° (1/4) additional turn

• Always replace.

• Fully threaded.

• Only tighten the crankshaft bearing cap bolts to 65 Nm to measure radial play. Do not rotate further.

2 Bearing Cap

• Bearing cap 1: Belt pulley side.

• Retaining tabs of the bearing shells and cylinder block/bearing caps must align with one another.

3 Screw, 10 Nm + 90° (1/4) additional turn

• Always replace.

4 Sensor Wheel

• For the engine speed (RPM) sensor.

• Replace the sensor wheel every time the bolts are loosened.

• Only possible to install in one position - bores are offset.

• Removing and installing, refer to => [ Sensor Wheel ] Service and Repair.

5 Crankshaft

• Axial play: new 0.07 to 0.23 mm.

• Wear limit: 0.30 mm.

• Measure radial clearance with Plastigage.

• Radial clearance: new 0.017 to 0.037 mm.

• Wear limit: 0.07 mm.

• Do not turn the crankshaft when measuring radial play.

• Crankshaft dimensions, refer to => [ Crankshaft Dimensions ] [1][2]Crankshaft, Engine.

• Removing and installing the needle bearing. Refer to => [ Crankshaft Needle Bearings ] Service and Repair.

6 Thrust Washers

• For bearing 3.

7 Cylinder Block Bearing Shell

• With lubricating groove.

• Classification for replacement part ordering, refer to => [ Upper Crankshaft Bearing Identification ] Service and Repair.

• Do not interchange used bearing shells (mark).

8 Chain Sprocket

• For the oil pump drive.

9 Bearing Cap Bearing Shell

• Without lubricating groove.

• Do not interchange used bearing shells (mark).