Hey all-

I love my car. But seems like there is always a little something that needs tweeking. A few months back replaced the resistor ends and correct Bosch plugs to correct a stumbling idle. THis is the only ignition work I, the 2nd owner, have done. PO replaced the engine wiring harness under warranty about 10k mi. ago.

I am getting varying degrees of "cut out" when I really get into the gas. Have only noticed this summer. Wondering if it is heat related. I have run several tanks of injector cleaner fluid through, including Techroline and some other. I run pretty much only 93 octane Chevron for pusholine.

What might be causing me to have this sort of sputtering. I am sure it is just a "tuning" type of thing, but where do I start?

Gracias

I'd try changing the fuel filter......

And check the spark plugs.

__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)