Hard hot starting is due to flooding caused by leaking injectors. Time for new injectors.

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Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles

I had the same sort of issue with my 1993 E280 - Same engine.

Mine was solved with cleaning the throttle body as mentioned. However, as mentioned by someone else, that year was know for wiring loom failiures.

Mine had this. I would do work like changing spark plugs, and weird things would happen to my idle - only to dissapear for months and run fine.

If you have had a head gasket done then chances are the loom has been disturbed - from my experiences this can cause very weird behaviour and make fault finding very hard.

Injectors have already been tested as was shown in first post, but thanks.

And Kiwi-bloke, checked the wiring, its fine, most of it has been replaced on this car already. And ya, the 93 E280 is the same as the one sold here in the US as a 93 300E. For whatever reason they just changed the badges.

Stuck fuel distributor plunger?

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-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition

Do you mean the fuel regulator on the fuel rail?

Anyways, latief, I made a mistake.... the car ran fine for me for a day or so, then my wife calls complaining it died on her at a red light and took a couple minutes to get it started again. After she got home, I started it 20 without ever touching the pedal. That sent me searching again as that didn't act like the actuator going out. I had told you the wiring on it was fine because I had checked the wiring on the car side of the connection.... then the thought crossed my mind that this may well be the original throttle body, so I cut back the covering on it.... Son of a *****

So, now to take it out again and see it I can re-wire the dang thing. One more thing for ppl to keep an eye on if they are having starting or idle issues. Thanks again man.