Crankshaft Bearing Shell, Allocating

The bearing shells are allocated to the cylinder block with the correct thickness by the factory. Colored dots serve to identify the bearing thicknesses.

The code letters on the lower contact surface or on the top of the cylinder block identify which bearing shell and where it must be installed in the cylinder block (upper bearing shell).

The code letters on the crankshaft identify which bearing shell and where they must be installed in the bearing cap (lower bearing shell).

The first letter is for bearing cap one, the second for bearing cap two, etc.

Cylinder Block 

Fig 1: Locating Cylinder Block Identification On Top (Transmission Side) Of Cylinder Block

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The cylinder block identification may be located either on the oil pan sealing surface or on the top (transmission side) of the cylinder block.

The identification on the cylinder block is for the upper bearing shell.

Fig 2: Locating Identification On Cylinder Block

Courtesy of VOLKSWAGEN UNITED STATES, INC.

-- Note the letter and then match it to the color identification in the table.

Crankshaft 

Fig 3: Locating Identification On Crankshaft

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The identification on the crankshaft is for the lower bearing shell.

-- Note the letter and then match it to the color identification in the table.