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
|
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1
|
F
|
Front-wheel drive
|
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2
|
M
|
Type of gearbox
A=Automatic transmission C=ACS and manual gearbox M=Manual gearbox |
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3
|
5
|
Number of forward gears
|
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4
|
7
|
Total gear ratio, top gear (code)
|
Codes for position 4
Total gear ratio, top gear (code)
|
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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
|
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5
|
Engine/Car adaptation
|
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A
|
Automatic transmission adapted for the B204I, B204L and B234I engines.
|
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B
|
Manual gearbox adapted for the B204L, B204I, B234I and D223L engines.
|
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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.