Allocation of main bearing shells for new crankshaft — VW
Allocation of main bearing shells for new crankshaft on VW: factory workshop procedure for engines CGNA, CKDA. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📋 Procedure
Allocation of main bearing shells for new crankshaft
Allocation of crankshaft bearing shells for cylinder block
Bearing shells of the correct thickness are allocated to the cylinder block at the factory. Coloured dots on the side of the bearing shell are used to identify bearing shell thickness.
The allocation of the bearing shells to the cylinder block is identified by a code letter next to the relevant bearing.
Letter on cylinder block
Bearing colour
R
=
Red
G
=
Yellow
B
=
Blue
Allocation of crankshaft bearing shells for retaining frame - Version 1
Bearing shells of the correct thickness are allocated to the retaining frame at the factory. Coloured dots on the side of the bearing shell are used to identify bearing shell thickness.
The allocation of the bearing shells on the retaining frame is indicated by stamped markings or coloured dots on the crankshaft webs, as shown in illustration.
Crankshaft with
Bearing colour
Stamp
Coloured dots
R
Red
=
Red
G
Yellow
=
Yellow
B
Blue
=
Blue
Allocation of crankshaft bearing shells for retaining frame - Version 2
Bearing shells of the correct thickness are allocated to the retaining frame at the factory. Coloured dots on the side of the bearing shell are used to identify bearing shell thickness.
The allocation of the bearing shells to the retaining frame is indicated by a letter on the front crankshaft web, as shown in illustration. The
“X”
indicates the end of the row of letters and is next to the colour coding for bearing
“1”
(pulley end).
Note
The row of letters begins on the left with bearing
“5”
(gearbox end).
Letter on crankshaft
Bearing colour
R
=
Red
G
=
Yellow
B
=
Blue
Allocation of crankshaft bearing shells for retaining frame - Version 3
Bearing shells of the correct thickness are allocated to the retaining frame at the factory. Coloured dots on the side of the bearing shell are used to identify bearing shell thickness.
The allocation of the bearing shells to the retaining frame is indicated by a letter on the front crankshaft flange, as shown in illustration.
Note
The row of letters begins on the left with bearing
“5”
(gearbox end).
Letter on crankshaft
Bearing colour
R
=
Red
G
=
Yellow
B
=
Blue
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.