I'm posting this for a friend of mine, told her of this site but as busy as she is...... Here goes: a '97 E320 made a "pop" under the hood yesterday then the "check engine" and "check engine elecronics" lights came on. Also has slower, rougher acceleration now. She had it in recently and the code brought up said "spark plug misfire". Any ideas? This is the lady I bought my Benz from and I know she would appreciate any help (perhaps even guiding the shop where to look for a permanent fix).

MERRY CHRISTMAS

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1991 300SE (my ride, 279,000 miles, looks almost new
1954 Cadillac (21 yo son's car, he bought when age 15)
1972 SeaBird 19 ft runabout (old but solid, slant six, Volvo sterndrive perfect condition, undergoing complete overhaul and refit)
1998 Toyota Rav4 (my sons daily driver when he is in the Continental US, PROUDLY serving in US Navy)