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Home >> BMW >> 2007 >> 335i 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1160 (Engine - Repair - N52 - E90) >> Crankshaft With Bearing >> 11 21 531 Replacing all main crankshaft bearing shells (N52K) >> Code numbers on crankshaft

Code numbers on crankshaft

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Code number 1 = bearing shell (2) Yellow.

Code number 2 = bearing shell (2) Green.

Code number 3 = bearing shell (2) Red.

IMPORTANT:

The color combination Yellow and Red  must not be fitted; the bearing colors Green/Green must be selected for this color combination, see table.

Installation example: 

For bearing 1 with code letter A  on the crankcase  and code number 1  on the crankshaft  bearing shell (1) with the color Yellow  is required for the crankcase  and bearing shell (2) with the color Yellow  for the crankcase lower half  (bedplate).

Fig 1: Identifying Bearing Shell
G04751107Courtesy of BMW OF NORTH AMERICA, INC.

Bearing 2: A  and 2  colors Yellow and Green.

Bearing 3: B  and 2  colors Green and Green.

Bearing 4: C  and 2  colors Red and Green.

Bearing 5: B  and 1  colors Green and Yellow.

Bearing 6: C  and 3  colors Red and Red.

Bearing 7: C  and 1  colors Green and Green.

The color combination Yellow and Red  must not be fitted.