Gilly,

Since we last touched on this subject, I've been to the dealer twice. I reported exactly as you suggested and they didn't find any error codes or evidence of failure(I think they started the car a million times).
Since I had to return I insisted on talking to a shop foreman and finding out what we might do, the guy was very pleasant and wanted to help but he naturally did not want to start replacing everything without some indication of what was wrong.
Finally, we agreed to replace a relay which sends power to the pump and see what happens.

Well, today it was dead again after I came back from vacation. As soon as I clipped the charger on, the pump started running again. I know it's not clear if the ignition on did that, but all I know is the car won't start and I'm worried my battery is fried now.

I'm going to take it in and ask for a complete charging system check and battery load test, but, I'd like your input on what you'd look into. It seems to be one of those really nasty intermittent electrical problems....

Rgds, Ed

__________________
Ed "Don't Benz's just feel better..."

Current wives...
2000 ML430 Skyview "The Mel"
2000 CLK430 Cab "The Cab"
85 300D Turbo "The Diesel"

Past wives...
92 300E
85 190E

"One should as a rule respect public opinion in so far as is necessary to
avoid starvation and to keep out of prison, but anything that goes beyond
this is voluntary submission to an unnecessary tyranny, and is likely to
interfere with happiness in all kinds of ways."
Bertrand Russell