Type designation
| Type designation | 
| General | 
Type designation for manual gearboxes is divided into 3 groups of characters as in the following example:
FM57 B01 A12345
The three character groups are separated by spaces and contain different information about the gearbox as specified below.
| First group FM57: | 
| Position | Designation | Explanation | |||||
| 1 | F | Front-wheel drive | |||||
| 2 | M | Type of gearbox A=Automatic transmission C=ACS and manual gearbox M=Manual gearbox | |||||
| 3 | 5 | Number of forward gears | |||||
| 4 | 7 | Total gear ratio, top gear (code) | |||||
Codes for position 4
| Total gear ratio, top gear (code) | ||||||||||
| Code | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 
| Gear ratio | 3.2 | 3.1 | 3.0 | 2.9 | 2.8 | 2.7 | 2.6 | 2.5 | 2.4 | 2.3 | 
| Second group B01: | 
| Position | |||||||
| 5 | Engine/Car adaptation | ||||||
| A | Automatic transmission adapted for the B204I, B204L and B234I engines. | ||||||
| B | Manual gearbox adapted for the B204L, B204I, B234I and D223L engines. | ||||||
| 6 and 7 | Development version | ||||||
| Third group A12345: | 
Manual gearboxes have a 6-character designation which starts with a letter according to which line the gearbox was fitted on. Each number series consists of 5 digits.

 
     
		