hey did you try the r16 timing retard transistor removal?
also what helped my 92 300ce bump up in gas mileage to 16 m/g was using injector cleaners...i would suggest pro-gard Chevron with their cleaning additive...
i actually used duralube injector cleaner...but i'm switching to chevron cause my mbz service guy said that the techron is a good cleaner....
i bumped from 12-14 m/g to about 15-16 mpg....so i'm going to use the cleaner for three more tanks...
hope this helps...

__________________
~there is no spoon~

1984 300CD Turbo Diesel (soon to be "powered by VEGGIE") - dolphin silver

1999 e430 Sport blk/blk, my sexy ***** ;-)

(my other girls)
1992 300CE 24V 3.0L (w124) (R.I.P. "she was killed 7/12/03 by some ricer kids speeding in a honda accord")
1990 Acura Integra RS (w/94' engine)
1966 Cadillac Sedan de Ville (Hardtop)