My 1971 280S has the S/G module. I connected the ignition condensor wire to a grounding block below the module. My negative coil terminal wire is grounded on the chassis.

Yet, on some W108's (probably pre-1970 era), the condensor wire is connected to the negative coil terminal.

Does the ignition condensor wire connect to the coil, only on W108's that don't have a S/G module?

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1970 280S M130 engine- good runner
1971 250 M130 engine- #2 rod bearing, gone
1971 280SE (blown engine,parts car)
1977 German 280S W116-only 33 years old

His post under the thread '280S ignition' answered the question.

"As you can see , the ground on the coil is to complete the coil circuit as it gets its positive switched side of the coil from the switchgear. Whereas , with standard points , the switching is done by the points on the neg side of the coil. [ to ground]. In other words , the with S/G , the sig to the coil is swiched before the coil, whereas with reg point ignition, the sig is switched after the coil [ on the neg to ground side.]"

__________________
1970 280S M130 engine- good runner
1971 250 M130 engine- #2 rod bearing, gone
1971 280SE (blown engine,parts car)
1977 German 280S W116-only 33 years old