I have several questions:
· What is the port on the upper right-hand corner used for?
· Is it a required hook-up?
· I noticed the hook-ups for the eight peg plugs, crank sensor, and vacuum hose.
· Does anyone have model that can replace it?
· Can I replace it with one that does not have a port on the upper left hand corner, but does have the eight peg plugs?


Part Numbers

Bosch Number: 0227-400-706
Mercedes Number: 007-545-07-32 (02)


Thanks,


Ron Brown

(Richmond, VA)

Link with the picture: ECM for a 1989 Mercedes 500 SEL Euro (Please Help)

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