mine does this too

it makes me sad

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1991 300D

Just a few questions:

1) What is the rpm at start, and after it begins shaking?

2) If you turn it of and restart, is the sequence repeated?

3) Is the delay always exactly 40 seconds?

My 93 did the same thing. It seems common on the 124.128

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Only diesels in this driveway.
2005 E320 CDI 243k Black/Black
2008 Chevy 3500HD Duramax 340k
2004 Chevy 2500HD Duramax 220k

Another question: if you run it hard for a while, does it still do this?

EDS computer and capacitor? So what is fix for it?

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91' MB 350 SDL, with 961 engine and #14 valve head
09' ML320 Bluetec

http://www.peachparts.com/shopforum/diesel-discussion/389414-eds-elr-idle-issues-om603.html

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Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

I gotta know if you ever fixed this.

I have at '92 that has the exact same issue. It starts fine, after 30 seconds there's a very rough idle and tons of smoke. Once it's warmed up, the idle is fine... but occasionally the turbo stops working until I restart it...?

I'm pretty sure I messaged you about this a year and a half ago and you hadn't figured it out yet, but I can't find the message to prove it.

What color smoke?

It’s probably just worn injectors. The afterglow helps the engine run smooth for a short while and then fades out the help gradually. Even my sorted lowish mileage 602 does this very slightly. The less sorted the engine is the starker the transition from afterglow to unassisted cold running will be.