hi, new user, need help with mercedes, originally came to me with cel and hesitation, had codes 150, 300, 304, 306, 305, 170. replaced plugs and mass air flow meter. code 150 returns intermittantly. while driving, car dies either under load or when slowing to a stop. code 150 sets. car restarts, but light stays on. flashes at times.

Welcome to the forum.
You can usually find what you need by using the SEARCH function.
Here are the results of a search for p0150 in the Tech Help forum.
The search target is highlighted in red. Looks like an O2 sensor.
http://www.peachparts.com/shopforum/search.php?searchid=827433
Good Luck, Dan

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2012 E350 Bluetech

hi, when i tried the link, it says sorry no matches found. i have done further checking, when light comes on, i lose spark and fuel on left side of engine....related to oxygen sensor:

help.............................

hi I have a CLK 430 not the same but similary like electronic managment.....
If the problem happens only when the engine is hot it can be the Crank position sensor but if you loose gas only from one bank I thik you have a problem with some coils or with some coils cables.
If you have already chaged all 12 plugs and MAF i would like to SWAP the O2 sensor Left right just to see if the problems happens on the other side.....
Good lluck and get me in touch
Alberto