Main Bearing Shells, New Crankshafts, Allocating

WARNING: This page is about a different car, the 2010 Audi Q7, 2009 Audi Q7, 2008 Audi Q7, and 2007 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Allocation Of Crankshaft Bearing Shells For Cylinder Block

Courtesy of AUDI OF AMERICA, LLC

Bearing shells with the correct thickness are allocated to the cylinder block in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
Allocation of bearing shells to cylinder block is marked by one letter each at front left on cylinder block (can be read from outside) as shown in the illustration.

Letter on Cylinder Block		Color of Bearing
R	=	Red
G	=	Yellow
B	=	Blue

NOTE:

In addition, the letters are also stamped on the guide frame.

Fig 2: Allocation Of Crankshaft Bearing Shells For Guide Frame - Crankshaft Manufactured By Alfing

Courtesy of AUDI OF AMERICA, LLC

Bearing shells with the correct thickness are allocated to the guide frame in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
Allocation of bearing shells to guide frame is marked by one colored dot each on crankshaft counterweight as shown in the illustration.

Colored Dot on Crankshaft	Color of Bearing
Red	Red
Yellow	Yellow
Blue	Blue

Fig 3: Allocation Of Crankshaft Bearing Shells For Guide Frame - Crankshaft Manufactured By Weber

Courtesy of AUDI OF AMERICA, LLC

Bearing shells with the correct thickness are allocated to the guide frame in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
The allocation of bearing shells to guide frame is identified by a letter on the front crankshaft counterweight, as shown in the illustration. The "X" marks the end of the letter sequence and is near the bearing 1 color identification on the belt pulley side.

NOTE:

Ignore item -A-.

Letter on Crankshaft		Color of Bearing
R	=	Red
G	=	Yellow
B	=	Blue