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  #1  
Old 12-21-2016, 09:02 PM
jkpgt96 jkpgt96 is offline
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P124d Code

I got back in my 2011 X5d tonight and the check engine light came on for the very first time. I got the codes pulled on the way home and it came back as P124D. A quick google search tells me it is the NOx sensor. Can I simply pull it and clean it? Any other tips to try before getting a new one?

Car is a 2011 X5d with 69k on it, weather tonight Is not very cold or anything like that..thoughts?
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  #2  
Old 12-21-2016, 09:08 PM
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floydarogers floydarogers is offline
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Quote:
Originally Posted by jkpgt96 View Post
I got back in my 2011 X5d tonight and the check engine light came on for the very first time. I got the codes pulled on the way home and it came back as P124D. A quick google search tells me it is the NOx sensor. Can I simply pull it and clean it? Any other tips to try before getting a new one?

Car is a 2011 X5d with 69k on it, weather tonight Is not very cold or anything like that..thoughts?
Can't be cleaned. Early for it to fail, but not insanely early.

The trouble-shooting for that system is pretty complicated; may not actually be the sensor. The sensors are quite expensive - $500-$750, so it's worth having someone (dealer) do the troubleshooting.
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  #3  
Old 12-22-2016, 04:38 AM
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Doug Huffman Doug Huffman is offline
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Troubleshooting means executing the appropriate Test Plan, not a multimeter.
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  #4  
Old 12-22-2016, 06:00 AM
jkpgt96 jkpgt96 is offline
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Wasn't planning on doing this troubleshooting myself. Thanks


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  #5  
Old 12-27-2016, 06:01 AM
jkpgt96 jkpgt96 is offline
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Okay so it is the NOx sensor, the upstream unit. They are quoting me almost 850 bucks to replace it. Is this something that can be done myself? Or is there some coding to be done that disconnecting the battery won't take care of? I am pretty mechanically inclined.


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  #6  
Old 12-27-2016, 08:34 AM
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floydarogers floydarogers is offline
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Quote:
Originally Posted by jkpgt96 View Post
Okay so it is the NOx sensor, the upstream unit. They are quoting me almost 850 bucks to replace it. Is this something that can be done myself? Or is there some coding to be done that disconnecting the battery won't take care of? I am pretty mechanically inclined.
You can DIY and save $300 - the sensor itself is around $500.
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  #7  
Old 12-27-2016, 09:09 AM
jkpgt96 jkpgt96 is offline
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Awesome! Thanks!


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