QUOTE(type47 @ May 20 2012, 10:08 AM)
PET 901-05 #(8) lists a control unit for engine serial number GC0 000 001 (which I think is 75-76) as 039.906.021 A. That may be a start ..... There are other MY control units with the same number but different letter ie looks like 74 control unit has PN 039.906.021 (no letter)
the PET link is in my signature
Found it , the one 031 906 021E can be used on the 73 74 2.0l