Well guys, "the hard to start when warm problem search continues".
Now that the Jeep is gone, I can turn more attention to this annoying problem.

I have spent countless hours searching this problem. I have replaced the injector holders, seals,all breather tubes,sparkplugs, wires,distributor cap and rotor,fuel pump,filter, fuel hoses,accumulator,coil,check valve at the fuel pump,cold start valve,and all engine mounted sensor switches. Starts right up cold. But not when hot. Timing is right on. Using premium fuel since day one. Tried synthetic oil. But too many leaks with 235,000 miles.
All electronics are functional. Car handles fantastic. Cruises at 95 and 2200 RPM.
Sooooooooo. Steve Bretherton(spelling?) suggested I am having a fuel pressure loss (or even a vapor lock) condition when the car sits after shut off. I put in another accumulator thinking the one I just got was bad. Nooooooooo.

The pressure loss could be internal. Not sure what that means. Or more likely with the mileage, injectors. With that I ordered another set of injector holders and seals.
And this time a new set of brass injectors from Rusty's.
The injectors in it now are origonal. Except #5 that was replaced for some reason by a PO.

I will keep all of you posted in about two weeks as to my progress after the new injectors are installed. There are just too many of us that have the "hard to start when warm" issue.

By the way, the issues I was having with my 2001 S500 have vanished. The car is now flawless. (see avitar)

For those of you with this chassis, please do a search on "Home at last"
and discover what I paid $11,000 to find.
To all of you, have a safe and fun Fourth of July!!

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Selling used Mercedes parts on Ebay...always changing...
cdplayer51 take a look!
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