Electronic distributor for 1970, 280 SE 3.5 cb - Mercedes-Benz Forum

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post #1 of 26 (permalink) Old 11-23-2014, 07:55 AM Thread Starter
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Electronic distributor for 1970, 280 SE 3.5 cb

Could someone advise if it is possible to get an electronic distributor for an
8 cylinder 1970 280 SE 3.5 cabriolet. If so, please let me have the contact details of suppliers.

Thanks
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post #2 of 26 (permalink) Old 11-23-2014, 01:46 PM
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your car HAS already "electronic" ignition .....
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post #3 of 26 (permalink) Old 11-23-2014, 02:46 PM Thread Starter
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Ok thanks. I have seen on this forum a similiar question from another owner of a 280 se 3.5. But I wonder if he asked for a some electronic replacement for the points on the distributor.
Any comments on that?
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post #4 of 26 (permalink) Old 11-23-2014, 04:05 PM
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Quote:
Originally Posted by paul-NL View Post
your car HAS already "electronic" ignition .....
I'd be curious as to how you define "electronic" Paul.

If the originator of the thread defines it as something modern and lacking the need for points and a condenser, his 3.5 is not electronic.

Athadani, I've never run across a thread that talks about using something modern in your car. That distributor is pretty unique to the D-jetronic setup. However, you can replace the points and condenser with a Hall Effect pickup - Pertronix makes them (you can order them from Summit Racing or Napa Autoparts) as do a number of others. There's no custom work needed and you can revert back to points any time. If you call Summit Racing, have your distributor number handy - there may be small variances they need to take into consideration.

To my knowledge, there are no electronic or modern replacements for the trigger points.

I replaced my setup with a Pertronix unit in 2005, and it immediately ran a helluva lot better. I'm confident you'll see an immediate improvement. The conversion took me about an hour and I considered myself a novice at the time.
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post #5 of 26 (permalink) Old 11-23-2014, 05:33 PM
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"I replaced my setup with a Pertronix unit in 2005, and it immediately ran a helluva lot better. I'm confident you'll see an immediate improvement. The conversion took me about an hour and I considered myself a novice at the time."
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Yes this the way to go. I did this with the dual points in my 6.3. Wow what a difference. No miss what so ever.
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Last edited by Baybear; 11-23-2014 at 05:49 PM.
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post #6 of 26 (permalink) Old 11-23-2014, 06:14 PM
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the M116 motor has an electronic ignition. See the garagemanual Type W108-W113, section 15-20.

There are 2 kinds of : with contactpoints and without contactpoints.

But the 3.5motor still is equiped with an electronic "transistorized" ignition.

Those contactpoints should live at least 40.000 Km or more
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post #7 of 26 (permalink) Old 11-23-2014, 06:25 PM
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Yes yes. And as evidenced by massive triggering transistor in the front driver side of the engine bay too. Got it.

And I'm sure the mechanical breaker contact points last 450k km or more. But for optimum performance they need adjustment often and are prone to degrade. The Hall Effect setups arent. My advice is to ditch the points and welcome the car to the modern era with a Pertronix setup
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post #8 of 26 (permalink) Old 11-23-2014, 07:54 PM
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the pointes do not need to be reset often , every 10.000 miles , you just check the dwell and readjust if necessary .
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post #9 of 26 (permalink) Old 11-24-2014, 08:51 AM Thread Starter
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Thanks to all. I think I will take the car to the Mercedes Classic Center in Basel and they can fix it in the best way but I will communicate your messages.

Best wishes to all
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post #10 of 26 (permalink) Old 11-24-2014, 09:42 AM
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curious ... fix what ... ????
You have not mentioned any problem .....

And why are you thinking "it" is not caused by the "contactpoints" from the D-Jetronic ????
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