BMW M3 Forum (E90 E92) - View Single Post - DIY: Oxygen O2 Sensor Change Fixed Rough Idle and Limp Mode

Ximian · 01-07-2023, 10:24 AM

16421 and 16793 are the Bosche part numbers for the post-cat sensors. Looking at it further, it appears 17038 is either an older revision of 17039 or just meant for a different area, so still correct information there.

01-07-2023, 10:24 AM	#5
Ximian . 1919 Rep 1,888 Posts Drives: E92 M3 Join Date: Oct 2016 Location: MN iTrader: (1) Garage List 2011 BMW M3 [0.00] 2021 BMW M3 [0.00]	16421 and 16793 are the Bosche part numbers for the post-cat sensors. Looking at it further, it appears 17038 is either an older revision of 17039 or just meant for a different area, so still correct information there. __________________
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