Nox sensor

franan · 08-02-2017, 03:01 PM

Hey guys my 2009 x5 just shot me a code. Last summer I changed the Metering Unit, but I did not re calibrate the car. Ever since, the check engine light has been on. Went to Auto Zone and they showed me this... Also, what is the best tool to buy to re calibrate, since I do not want to pay the dealer for it. Thanks.

P124D
P2209

Kakalika · 08-02-2017, 11:27 PM

I believe P124D is the NOX sensor. You can reset it, but the error will come back. They have to be replaced. I believe BMW will do it, as they have extended the warranty on them.

franan · 08-04-2017, 11:28 AM

For everyone with the Nox sensor there are under warranty on these sensors.Check with your state dealer.

Quote:

Originally Posted by Kakalika

I believe P124D is the NOX sensor. You can reset it, but the error will come back. They have to be replaced. I believe BMW will do it, as they have extended the warranty on them.

e70jane · 10-15-2017, 07:47 PM

I have a 07 X5 4.8l with only 49k. Just recently cel came on. Check code was a p3203. Car hesitates during acceleration. When I clear the code, it drives normally but only for a short period of time until it comes back. Yesterday while waiting for a wash, the rpm started jumping for just a short time. It also died out on me once while waiting on a red light. Just last night I checked the code again and this time 3 codes popped up. The p3203 is no longer there anymore. Instead, I got p1039, p1036, and p3205. What could be the problem?
I hope it's just the o2 triggering the nox because the nox is super expensive and I doubt there's any warranty left to replace the nox.

08-02-2017, 03:01 PM	#1
franan Registered 0 Rep 2 Posts Drives: X5 2009 Diesel Join Date: Aug 2017 Location: Franklin lakes Nj iTrader: (0)	Nox sensor Hey guys my 2009 x5 just shot me a code. Last summer I changed the Metering Unit, but I did not re calibrate the car. Ever since, the check engine light has been on. Went to Auto Zone and they showed me this... Also, what is the best tool to buy to re calibrate, since I do not want to pay the dealer for it. Thanks. P124D P2209
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08-02-2017, 11:27 PM	#2
Kakalika First Lieutenant 101 Rep 302 Posts Drives: 2014 X5 35d M Sport Join Date: Jan 2013 Location: Houston TX iTrader: (0)	I believe P124D is the NOX sensor. You can reset it, but the error will come back. They have to be replaced. I believe BMW will do it, as they have extended the warranty on them. __________________ RUN FLAT TIRES? NEIN DANKE!
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10-15-2017, 07:47 PM	#4
e70jane New Member 0 Rep 11 Posts Drives: bmw e70 Join Date: Aug 2017 Location: Denver, Colorado iTrader: (0)	I have a 07 X5 4.8l with only 49k. Just recently cel came on. Check code was a p3203. Car hesitates during acceleration. When I clear the code, it drives normally but only for a short period of time until it comes back. Yesterday while waiting for a wash, the rpm started jumping for just a short time. It also died out on me once while waiting on a red light. Just last night I checked the code again and this time 3 codes popped up. The p3203 is no longer there anymore. Instead, I got p1039, p1036, and p3205. What could be the problem? I hope it's just the o2 triggering the nox because the nox is super expensive and I doubt there's any warranty left to replace the nox.
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