SCR Emissions Issue (long story)

Greck · 10-28-2016, 11:52 AM

Okay, tomorrow I gonna replace the thermostat, because "t" is definitely wrong:

Greck · 10-31-2016, 10:45 AM

Here is the update:
it says one more monitor to complete, but still not CEC light (300miles after DPF replaced)

Greck · 10-31-2016, 10:51 AM

And probably it was to impulsive, yesterday I thought that I should be busy with thermostat replacement, but because of rain I checked the web sites and found the 2011 x5 35d at one of the closest Dealerships

and now I have two diesel cars

) and x5's temperature is 82-84, that is lower than I expected, probably I have to buy one more thermostat))?

Hoooper · 10-31-2016, 04:08 PM

82-84 is fine unless its causing you smog issues. I had "low" ECTs for a while (about 77C in the summer) and never had any issue with regen.

Greck · 10-31-2016, 04:30 PM

Quote:

Originally Posted by Hoooper

(about 77C in the summer) and never had any issue with regen.

I guess that in my case the Regeneration was affected by bad temperature sensor on the DPF, there are 3 of them and first one shows lower than last one(closer to the SCR).

Thermostat can actually make it worth by continuously cheating on engine with wrong temperature and DDE send more fuel to make the engine's temp higher and because of that I had extra soot...

Currently pipes aren't super clean, but much better than it was before...

Greck · 10-31-2016, 04:49 PM

Photos of the Thermostat:

Greck · 10-31-2016, 04:52 PM

and the Old DPF looks like that, and I don't see anything bad except of soot... it is not clogged or damaged, isn't is?

floydarogers · 10-31-2016, 06:09 PM

Quote:

Originally Posted by Greck

and the Old DPF looks like that, and I don't see anything bad except of soot... it is not clogged or damaged, isn't is?

Looks perfect to me.

ingenieur · 10-31-2016, 06:34 PM

Quote:

Originally Posted by Greck

Here is the update:
it says one more monitor to complete, but still not CEC light (300miles after DPF replaced)

Your scanner does not read a diesel (compression engine) readiness correctly - Mode 1 PID 01.
You can determine what really is not ready at this link:
https://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_1_PID_01

Greck · 10-31-2016, 10:56 PM

you right,
Oxg Sen Hrt = C6 = PM filter monitoring

Greck · 12-20-2016, 12:09 PM

Finally, Happy End)!

Now I have to fix diesel smell in cabin)

ninja_zx11 · 12-20-2016, 12:23 PM

Quote:

Originally Posted by Greck

Finally, Happy End)!

Now I have to fix diesel smell in cabin)

Great job in chasing the problem!!Thanks for the update.

Greck · 01-21-2017, 05:55 PM

WoooHooo! Hey Again, guess what is the reason to pull up this topic))? jackie chan(check engine) again... 4 month of repairs and ~2000$ out of pocket... = 1 month of happy driving

I feel like I'm paying for lease of brand new m3...

ninja_zx11 · 01-21-2017, 06:00 PM

Quote:

Originally Posted by Greck

WoooHooo! Hey Again, guess what is the reason to pull up this topic))? jackie chan(check engine) again... 4 month of repairs and ~2000$ out of pocket... = 1 month of happy driving

I feel like I'm paying for lease of brand new m3...

Sorry to hear that...😯What code now?

Greck · 01-21-2017, 06:10 PM

P20EE

Several hours before this code appeared I bought brand new tires Bridgestone RFT Tires )) Car doesn't want to pay me back in the same positive way as I'm trying to treat her) Real BITCH!

octalon7 · 01-27-2017, 01:33 PM

Wow you have gone through a lot of troubleshooting. This is nuts.

Greck · 01-27-2017, 03:25 PM

Quote:

Originally Posted by octalon7

Wow you have gone through a lot of troubleshooting. This is nuts.

Yep, now I guess I have to replace the MAF sensor, because fuel consumption is higher that my e70 X5 with the same engine. The idea is the because of MAF = more fuel = more NOX = SCR issues...

Will check it soon)

10-28-2016, 11:52 AM	#89
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	Okay, tomorrow I gonna replace the thermostat, because "t" is definitely wrong: Attached Images
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10-31-2016, 10:45 AM	#90
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	Here is the update: it says one more monitor to complete, but still not CEC light (300miles after DPF replaced) Attached Images
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10-31-2016, 10:51 AM	#91
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	And probably it was to impulsive, yesterday I thought that I should be busy with thermostat replacement, but because of rain I checked the web sites and found the 2011 x5 35d at one of the closest Dealerships and now I have two diesel cars ) and x5's temperature is 82-84, that is lower than I expected, probably I have to buy one more thermostat))?
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10-31-2016, 04:08 PM	#92
Hoooper Colonel 213 Rep 2,210 Posts Drives: 335D Join Date: Jun 2013 Location: Petaluma, CA iTrader: (0)	82-84 is fine unless its causing you smog issues. I had "low" ECTs for a while (about 77C in the summer) and never had any issue with regen.
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10-31-2016, 04:49 PM	#94
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	Photos of the Thermostat: Attached Images
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10-31-2016, 04:52 PM	#95
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	and the Old DPF looks like that, and I don't see anything bad except of soot... it is not clogged or damaged, isn't is? Attached Images
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10-31-2016, 10:56 PM	#98
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	you right, Oxg Sen Hrt = C6 = PM filter monitoring
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12-20-2016, 12:09 PM	#99
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	Finally, Happy End)! Now I have to fix diesel smell in cabin) Attached Images
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01-21-2017, 05:55 PM	#101
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	WoooHooo! Hey Again, guess what is the reason to pull up this topic))? jackie chan(check engine) again... 4 month of repairs and ~2000$ out of pocket... = 1 month of happy driving I feel like I'm paying for lease of brand new m3...
	Appreciate 0 Quote

01-21-2017, 06:10 PM	#103
Greck Second Lieutenant 62 Rep 245 Posts Drives: e90 2011 335d / e70 2011 35d Join Date: Jul 2016 Location: CA, Bay Area iTrader: (0)	P20EE Several hours before this code appeared I bought brand new tires Bridgestone RFT Tires )) Car doesn't want to pay me back in the same positive way as I'm trying to treat her) Real BITCH!
	Appreciate 0 Quote

01-27-2017, 01:33 PM	#104
octalon7 Private First Class 15 Rep 121 Posts Drives: 2006 Z4 M Roadster Join Date: May 2016 Location: Oregon iTrader: (0)	Wow you have gone through a lot of troubleshooting. This is nuts.
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