1975 Mercedes 280C Firing Sequence - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 06-22-2010, 12:56 PM Thread Starter
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1975 Mercedes 280C Firing Sequence

Hello Folks,

I think this will be a bigger problem than this but I just hope to have the car running again. Like the title states I have a 75 280C to which I was trying to give a quick tune up in the hope she would start up better. When I got her last October 09 she would start right up but then it became harder and harder and I have to give her constant gas for about 10 minutes for the engine to start going.

So I was trying to replace the spark plugs and wiring but in my haste and foolishness I forgot to mark the firing sequence on the distributor cap. I know the order since it's on the block but I don't know where the first value goes on the cap. However I have gathered that it runs clockwise starting from the first plug closet to radiator and going back.

I'm attaching a picture a of what I think is the right firing sequence.

Any and all help will be appreciated and thank you in advance.

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post #2 of 2 (permalink) Old 06-22-2010, 09:05 PM
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Date registered: Dec 2003
Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
Location: Near Manassas Va.
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There should be a notch on the distributor which aligns with number 1. The notch is on the top portion where the cap sits. You can also rotate the engine until the cam lobes are up and the timing marks align at zero.

BTW, all MB inline sixes use 1 5 3 6 2 4 firing order.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant

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