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2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums General 5-Series Sedan and Wagon (F10 / F11) Forum 2012 550ix O2 Sensors, location?
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      07-11-2019, 11:11 AM   #1
Bimmerroad
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2012 550ix O2 Sensors, location?

First time replacing bimmer o2 sensor.

Is it safe to assume that because 550i has v8 turbo it has 4 O2 sensors?

Are the pairs the same shape configuration? meaning the two upstream identical to each other? Same question for the downstream. I am asking because my searches to purchase the upstream do not show any upstream discrimination as far as compatibility, presuming that there are 2 upstream.

If anyone can share their locations are they in the usual expected place before and after the catalytic converter? Or under the hood?



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      07-11-2019, 01:23 PM   #2
Trian
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Have you looked through newtis.info?

https://www.newtis.info/tisv2/a/en/f...=oxygen+sensor
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      07-11-2019, 04:36 PM   #3
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One of the online part databases would also reveal the location and the number of sensors: (#1/#2/#3/#4...click link to parts diagram to see what the 11 digit BMW number is for them and what they are called). Combine the info from the parts database with the info from the online BMW TIS website...and you should be golden.

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