Here are the Auto Gearbox codes, part numbers and dates of change.

Gearbox

1
MD975141
W5A51-3-E6A
06/1996
02/1997

2
MD975141
W5A51-3-E6A
06/1996
02/1997

3
MD975141
W5A51-3-E6A
06/1996
02/1997

4
MD975918
W5A51-3-E6B
02/1997
07/1998

5
MD975918
W5A51-3-E6B
08/1998
04/1999

6
MD975918
W5A51-3-E6B
05/1999
04/2000

7
MR553208
W5A51-3-EZB
05/2000
03/2001

8
MR553208
W5A51-3-EZB
04/2001
08/2002


ECU's

1 MD761988 06/1996 02/1997

2 MD761988 06/1996 02/1997

3 MD761988 06/1996 02/1997

4 MR367177 02/1997 07/1998

5 MR470718 08/1998 04/1999

6 MR430874 05/1999 04/2000

7 MR470718 05/1999 04/2000

8 MR553458 05/2000 03/2001

9 MR553459 05/2000 03/2001

10 MR553458 05/2000 08/2002

11 MR553459 05/2000 08/2002