for carbon cleaner. The 190e continues to ping even with resetting the engine timing and running the best 91 octane I can find. As the outside temp rises so the pinging increases.

I have heard several suggestions, anyone cleaned combustion chambers with fluids/sprays etc and had good luck?

Haasman

__________________
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)