Main Bearing Shells, New Crankshaft, Allocating
WARNING: This page is about a different car, the 2018 Audi S6, 2017 Audi S6, and 2016 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
- 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 |
| S | = | Black |
| G | = | Yellow |
| U | = | Green |
| B | = | Blue |
NOTE:
In Addition, The Letters Are Also Stamped On The Guide Frame.
- 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 flange, as shown in the illustration.
- The letter series begins with crankshaft bearing "5" (transmission side) and ends with crankshaft bearing "1" (belt pulley side).
| Code Letter on the Crankshaft Flange | Color of Bearing | |
|---|---|---|
| R | = | Red |
| S | = | Black |
| G | = | Yellow |
| U | = | Green |
| B | = | Blue |