535i oxygen sensor

KMS115 · 10-10-2023, 02:02 AM

Hi everyone, my check engine light came on recently for the downstream O2 sensor. I'm looking for the sensor online but I'm getting 2 different types of the same sensor

BOS-0258030046

BOS-0258010416

Does anyone know which one is the correct one? My build date is 08/13 of that helps

Hoa · 10-11-2023, 11:20 AM

BOS-0258030046 is the pre cat. Bolted near the flange

BOS-0258010416 is post cat. Bolted to the middle of the cat

10-10-2023, 02:02 AM	#1
KMS115 Registered 0 Rep 1 Posts Drives: BMW 535 Join Date: Jun 2023 Location: Utah iTrader: (0) Garage List 2014 535i [0.00]	535i oxygen sensor Hi everyone, my check engine light came on recently for the downstream O2 sensor. I'm looking for the sensor online but I'm getting 2 different types of the same sensor BOS-0258030046 BOS-0258010416 Does anyone know which one is the correct one? My build date is 08/13 of that helps
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10-11-2023, 11:20 AM	#2
Hoa Major 513 Rep 1,356 Posts Drives: BMW Join Date: May 2010 Location: GA iTrader: (9)	BOS-0258030046 is the pre cat. Bolted near the flange BOS-0258010416 is post cat. Bolted to the middle of the cat
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