R107 (450SL 1974) ECU Part Numbers!

[dawood]

I'm trying to get a replacement ECU for my 1974 450SL. The Bosch part we took out of the car was 0 280 002 003

Bosch have two parts for that year
0 280 002 005 (to MY 07/1974)
0 280 002 014 (from MY 08/1974 to MY 08/1975)

My vehicle was registered in September 1974, but could have been manufactured the year before - or the part could have been replaced since??

In any case Mercseller have a range of ECU's none with that number
0 280 002 004
0 280 002 009
0 280 001 008
0 280 001 006

Could any of the above be used?

Any solutions to this quandry? My chassis number is 10704422016390

 

[dawood]

JUST FOUND THIS... I dont know if the SL/SLC/SE/SEL are interchangable in parts but it looks like there is a different part for the SE/SEL, however there is some overlap... any suggestions?

450SL, SLC, SE, SEL 72-75 EU 000 545 2732 Injection Control Unit 0 280 002 003
116.032, .033 450SE, SEL 72-74 000 545 5632 Injection Control Unit 0 280 002 008