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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, B205L, B204E and B205R engines

B

Manual gearbox adapted for the B204i, B205L, B204E, D223L and B205R engines

B235R (Viggen)

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.