N57 Diesel Particulate Sensor - Bimmerfest - BMW Forums



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F10 / F11 (2011 - 2016)
The sixth generation of the BMW 5 Series Sedan (F10) was produced from 2011 - 2016 with LCI updates arriving in 2014. In the US BMW offered a hatchback 5 Series Gran Truismo (F07) and the rest of the world also go a Station Wagon/Touring version F11.

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Old 07-03-2019, 10:00 AM
CMA-DO CMA-DO is offline
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N57 Diesel Particulate Sensor

CEL on and told I need a new Diesel Particulate Sensor and don't know what that is. I know there's a Particulate Filter and an Exhaust Temperature Sensor (near the Filter) but no Particulate Sensor. BMW wants almost $1400 so, of course, "no" but wonder what to do next. Vehicle is a 2014 with N57 engine and 30K.
Thanks very much for help!
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  #2  
Old 07-03-2019, 10:02 AM
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Doug Huffman Doug Huffman is offline
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Free money for the liar. Get a second and competent opinion.
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Old 07-03-2019, 12:16 PM
VQPower37 VQPower37 is offline
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interested to know the outcome of this
i thought the particulate filter was an issue closer to 100k miles
didnt think the issue happened at such low mileage

thank you
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Old 07-03-2019, 02:13 PM
n1das n1das is offline
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There is no "particulate" sensor but there are a pair of pressure sensors used to measure the differential pressure across the DPF. The differential pressure data is used to determine when a DPF regeneration is needed.

I suspect the mechanic is referring to a one of the exhaust differential pressure sensors. Also, find a new mechanic, someone who really KNOWS these cars.


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Why DIESEL is better: (from wxmanCCM)
PM - https://sites.google.com/view/lmarzccm/home
Air Toxics - https://sites.google.com/view/loren-marz-ccm/home
Ozone Precursors - https://sites.google.com/view/lorenmarz-ccm/home
General - https://sites.google.com/view/emissions-general/home
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Old 07-04-2019, 07:45 AM
Bobbyl Bobbyl is offline
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Dpf

You have a Oxygen Sensor and a Nitrogen Oxide Sensor for the DPF which are covered under the 10 years/120 miles extended warranty.I just had both of mine replaced under warranty They replaced one and 180 miles later the other one failed.This is the second time the sensors have been replaced.You need to get a scanner and see what codes you have.I use a Foxwell 510 and it will test the sensors so I new they were bad before i took it in.
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Old 07-04-2019, 10:10 AM
CMA-DO CMA-DO is offline
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Very helpful. There seem to be two exhaust pressure sensors however they are on either side of the Catalytic converter. There does not seem to be one downstream of the DPF. Probably the sensor nearest the DPF. I am going to replace the cheap scanner that I have been using as well. Will a proper BMW scanner isolate the sensor?
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Old 07-04-2019, 12:58 PM
Bobbyl Bobbyl is offline
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Dpf

There is four sensors,two for the DPF and two for the catalytic converter.You can view then on www.realoem.com. The Foxwell 510 gave me a code for sensor one then let me run a test on sensor one. there was 7 test to run and it failed on the 5th one. It was the same thing the BMW dealer got.Did you not get a notice from BMW extending the warranty on the sensors.
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Old 07-04-2019, 03:39 PM
CMA-DO CMA-DO is offline
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Incredibly helpful- thanks very much! I ordered a Foxwell NT520 today and will scan ASAP. Interestingly, problems started after BMW performed recall on EGR cooler and I'll bet it's related. I did not get a (sensor) notice from BMW however I most certainly plan on discussing with them after I collect more information.
Thanks again.
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Old 07-15-2019, 04:10 PM
CMA-DO CMA-DO is offline
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With new Foxwell NT520, get a trouble code of P24AF/$07E8 which does indeed correspond to Diesel Particulate sensor. Ugh. Two questions:
1, Could this related to recent EGR Cooler recall work?
2, Is this a DIY project (don't have a lift) but should at least make sure it's plugged in right?
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Old 07-15-2019, 04:22 PM
Raymond Lee Raymond Lee is offline
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It maybe related to emission if that is the case it may cover under warranty. I had same item replaced on my MBZ e250 and was covered warranty.
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Old 07-16-2019, 12:06 AM
MunichMark MunichMark is offline
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These Sensors are $70 with Sales Tax in Germany !

Guess Platinum Plated in USA ?
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Old 07-16-2019, 07:58 AM
Bobbyl Bobbyl is offline
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N57 dps

Your Foxwell will let you run a functional test on all four of your o2 sensors .The car should be hooked up to a battery charger when doing this to insure adequate stable voltage.
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Old 07-16-2019, 10:48 AM
listerone listerone is offline
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Don't know if this might help but there's a BMW independent shop in Natick that might be worth contacting.

(508) 647-1500

P.S. No,I don't work for them,am not related to them and have never used them. I've just driven by them before.
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Old 07-16-2019, 01:35 PM
CMA-DO CMA-DO is offline
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Called BMW today and Diesel Particulate Sensor is indeed covered by extended and will be replaced next week free of charge.
Good thing that I did not fork over the $1400 that another dealer had asked for.
Thanks very much to all for invaluable help- I learned a great deal!
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Old 07-17-2019, 06:34 AM
listerone listerone is offline
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Quote:
Originally Posted by CMA-DO View Post
Called BMW today and Diesel Particulate Sensor is indeed covered by extended and will be replaced next week free of charge.
Good thing that I did not fork over the $1400 that another dealer had asked for.
Thanks very much to all for invaluable help- I learned a great deal!
Given that Massachusetts is a "California" state (meaning extended warranties on emissions equipment) I had a feeling that it might be covered. However,I've seen conflicting info on that warranty so I wasn't sure. I'm on my fourth diesel and have never had a problem with a DPF and hopefully won't with my "Beast"...which will very probably be my last.
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Old 10-15-2019, 11:31 AM
aminoacid99 aminoacid99 is offline
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Quote:
Originally Posted by Bobbyl View Post
There is four sensors,two for the DPF and two for the catalytic converter.You can view then on www.realoem.com. The Foxwell 510 gave me a code for sensor one then let me run a test on sensor one. there was 7 test to run and it failed on the 5th one. It was the same thing the BMW dealer got.Did you not get a notice from BMW extending the warranty on the sensors.
I didn't get such a letter. Is there any online reference to it?
I just got a P240c6 from generic Obii reader - ordering a foxwell to confirm same problem listed here.
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  #17  
Old 10-16-2019, 12:22 AM
MunichMark MunichMark is offline
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Just a note that sometimes a Manual DPF Regeneration Burn mysteriously clears up any DPF Sensor Faults... It happens... Once way out of range the logic points to a faulty sensor rather than a clogged DPF due perhaps recent short range driving.
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  #18  
Old 10-16-2019, 06:30 AM
Bobbyl Bobbyl is offline
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Call BMWNA with your VIN and find out why you have not received the notice of a limited warranty extension for the Oxygen Sensor and Nitrogen Oxide Sensors.
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