2013 ML63 P0017 Bank 1 sensor B
However upon searching I can't seem to locate it in engine bay and also unsure about the part number. Can someone help out and let me know where and what part I need to get?
The symptom is a longer than expected crank, but if I clear it I notice nothing for 100s of miles (300+ mile) trips and no errors until it reappeared today.
Thanks in advance for the help.


