Crankshaft: Locations
Assembly overview
Engine codes AEG, AVH, AZG, BEV
Engine codes BDC, BGD
Engine codes AEG, AVH, AZG, BEV
^ When working on the engine, it should be secured with the Holding fixture VW540 and the Spacers VW 540/1 B to the support clamp.
1 - Oil pump
2 - 15 Nm
3 - 65 Nm plus 1/4 turn (90°)
^ Replace
^ Threaded along complete length
^ Tighten to 65 Nm when measuring radial clearance
4 - Bearing cap
^ Bearing cap 1: Belt pulley end
^ Bearing cap 3 with recesses for thrust washers
^ Bearing shell retaining lugs in cylinder block and bearing caps must align
5 - Bearing shell 3
^ For bearing cap without oil groove
^ For cylinder block with oil groove
^ Do not interchange used bearing shells (mark)
6 - Sender wheel
^ Replace
^ For Engine speed (RPM) sensor -G28-
^ Can only be installed in one position. Holes are offset
7 - 10 Nm plus 1/4 turn (90°)
^ Replace
8 - Thrust washer
^ For bearing 3 bearing cap
^ Note fixing arrangement
^ Lettering faces side of bearing bracket
9 - Crankshaft
^ Axial clearance:
- New: 0.07 to 0.23 mm
- Wear limit: 0.30 mm
^ Check radial clearance with Plastigage
- New: 0.01 to 0.04 mm
- Wear limit: 0.15 mm
^ Do not rotate crankshaft when checking radial clearance
10 - Thrust washer
^ For bearing 3 bearing cap
^ Version for spare part (2 parts), bottom thrust washers are only half circles
^ Note fixing arrangement
^ Lettering faces side of bearing bracket
11 - Bearing shells 1, 2, 4 and 5
^ For bearing cap without oil groove
^ For cylinder block with oil groove
^ Do not interchange used bearing shells (mark)
^ Classification for ordering spare parts.
12 - Chain sprocket
^ For oil pump drive
Identification of crankshaft bearing shells for cylinder block (gradual introduction)
During production a bearing shell of the correct thickness is allocated to the cylinder block. A color code is used to identify the thickness of the bearing shells.
Note:
^ The - arrow - points forward.
Which thickness of bearing shell should be installed at which point is marked with a letter on the underside of the sealing surface of the cylinder block - x -.
Color code
Note:
^ If the colour code is not stamped or is not legible then use the middle sized (red) bearing shell.
^ The lower crankshaft bearing shells are always supplied, as a spare part, with the color code "yellow".
Engine codes BDC, BGD
^ When working on the engine, it should be secured with the Holding fixture VW540 and the Spacers VW 540/1 B to the support clamp.
^ The balancer shaft gear assembly must be adjusted.
1 - Chain sprocket
2 - Bearing shells 1, 2, 3, 4 and 5
^ For bearing cap without oil groove
^ For cylinder block with oil groove
^ Do not interchange used bearing shells (mark).
^ Classification for ordering spare parts.
3 - 65 Nm plus 1/4 turn (90°)
^ Replace
^ Threaded along complete length
^ Tighten to 65 Nm when measuring radial clearance
4 - Bearing cap
^ Bearing cap 1: Belt pulley end
^ Bearing cap 3 with recesses for thrust washers
^ Bearing shell retaining lugs in cylinder block and bearing caps must align
5 - Bearing shell 3
^ For bearing cap without oil groove
^ For cylinder block with oil groove
^ Do not interchange used bearing shells (mark)
^ Classification for ordering spare parts.
6 - Sender wheel
^ Replace
^ For Engine speed (RPM) sensor -G28-
^ Can only be installed in one position. Holes are offset
7 - 10 Nm plus 1/4 turn (90°)
^ Replace
8 - Thrust washer
^ For bearing 3 bearing cap
^ Note fixing arrangement
^ Lettering faces side of bearing bracket
9 - Crankshaft
^ Axial clearance:
- New: 0.07 to 0.23 mm
- Wear limit: 0.30 mm
^ Check radial clearance with Plastigage
- New: 0.01 to 0.04 mm
- Wear limit: 0.15 mm
^ Do not rotate crankshaft when checking radial clearance
10 - Thrust washer
^ For cylinder block, bearing 3
^ Version for spare part (2 parts), bottom thrust washers are only half circles
^ Note fixing arrangement
^ Lettering faces side of bearing bracket
Identification of crankshaft bearing shells for cylinder block (gradual introduction)
During production a bearing shell of the correct thickness is allocated to the cylinder block. A color code is used to identify the thickness of the bearing shells.
Note:
^ The - arrow - points forward.
Which thickness of bearing shell should be installed at which point is marked with a letter on the underside of the sealing surface of the cylinder block - x -.
Color code
Note:
If the color code is not stamped or is not legible then use the middle sized (red) bearing shell.
^ The lower crankshaft bearing shells are always supplied, as a spare part, with the color code "yellow".