REP-TAT-P-1121-05 Determining the classification of the crankshaft main bearing shell
WARNING: This page is about a different car, the 2018 BMW 340i, 2017 BMW 340i, and 2016 BMW 340i. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
TECHNICAL INFORMATION
The main bearing shells and guide bearing shells are still classified by colors or numbers.
The classification of the main bearing shells and guide bearing shells is being changed to a classification using only numbers. The color classification is being dropped.
The main bearing shells and guide bearing shells are still classified by colors or numbers.
The classification of the main bearing shells and guide bearing shells is being changed to a classification using only numbers. The color classification is being dropped.
- Enter the code letter on the crankcase
in the table.
K = Clutch side
Item numbers (7) to (1) describe the bearing seats 7 to 1. The code number is located on each of the crankshaft bearing caps.
- Enter the key performance indicators on the crankshaft
in the table.
K = Clutch side
Item numbers (1) to (7) describe the bearing seats 1 to 7. The code number is located on each of the crankshaft bearing caps.
- Enter code letters of the crankcase
and the code numbers of the crankshaft
.
Code letter on the crankcase Key performance indicator on the crankshaft Bearing seat 1 Bearing seat 2 Bearing seat 3 Bearing seat 4 Bearing seat 5 Bearing seat 6 Bearing seat 7 - Use the table below to determine the color of the main bearing shells
with lubrication groove
in the crankcase
:
A B C 1 Classification 1 (blue) Classification 2 (green) Classification 2 (green) 2 Classification 1 (blue) Classification 2 (green) Classification 3 (brown) 3 Classification 2 (green) Classification 2 (green) Classification 3 (brown) - Use the table below to determine the color of the guide bearing shells
with lubrication groove
in the crankcase
:
A B C 1 Classification 1 (blue) Classification 2 (green) Classification 2 (green) 2 Classification 1 (blue) Classification 2 (green) Classification 3 (brown) 3 Classification 2 (green) Classification 2 (green) Classification 3 (brown) - Use the table below to determine the color of the main bearing shells
with lubrication groove
in the crankshaft bearing caps
:
A B C 1 Classification 1 (blue) Classification 1 (blue) Classification 2 (green) 2 Classification 2 (green) Classification 2 (green) Classification 2 (green) 3 Classification 2 (green) Classification 3 (brown) Classification 3 (brown) - Use the table below to determine the color of the guide bearing shells
with lubrication groove
in the crankshaft bearing caps
:
A B C 1 Classification 1 (blue) Classification 1 (blue) Classification 2 (green) 2 Classification 2 (green) Classification 2 (green) Classification 2 (green) 3 Classification 2 (green) Classification 3 (brown) Classification 3 (brown)