Soot sensor fault - MB extending warranty??!
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Joined: Aug 2008
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Soot sensor fault - MB extending warranty??!
Maybe this has already been discussed?
Anyway, today I received a letter from MB Canada. It stated that Daimler have determined that a defect may exist in the emission control system on 2013-2015 cars and that our GLK250 is one of the models affected.
They say that the soot particulate sensor may fail and trigger diagnostic / Check Engine light which would prevent system from monitoring other potential problems.
As a result, they are extending warranty on the sensor to 10 year.s or 193k km. (I thought we had 8 years anyway, so not too generous!)
Seems to me, that if Daimler know there is a fault, it should be fixed, not wait for failure!
Anyway, today I received a letter from MB Canada. It stated that Daimler have determined that a defect may exist in the emission control system on 2013-2015 cars and that our GLK250 is one of the models affected.
They say that the soot particulate sensor may fail and trigger diagnostic / Check Engine light which would prevent system from monitoring other potential problems.
As a result, they are extending warranty on the sensor to 10 year.s or 193k km. (I thought we had 8 years anyway, so not too generous!)
Seems to me, that if Daimler know there is a fault, it should be fixed, not wait for failure!
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From: WI
GLK 250
Further searching turned this one up: NOx sensor for about $417. P/N 000-905-34-03
Thanks for posting the letter. Hopefully US owners aren't far behind to receive their notices.
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Joined: May 2016
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From: Portland, OR
2014 Mercedes GLK250, 2007 Mazda 3 GT, 2004 Honda XR400R
Would this relate to a P229F check engine code by chance? Mine threw a CEL on Friday with this code, I cleared it to see if it would come back right away and 400 miles later it's not back. Unsure what I should do.
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Thread Starter
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MBWorld Fanatic!
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From: WI
GLK 250
Sensors can go bad for no good reason. Other times the signal they transmit can be intermittent, again for no good reason. In both cases, you will get a CEL.
If the CEL cleared and stayed off, I'd just keep an eye out for it. The emissions control system on these Bluetecs is overly sensitive and extremely complex.
Extended warranty on something, ANYTHING in the system would be welcome.
If the CEL cleared and stayed off, I'd just keep an eye out for it. The emissions control system on these Bluetecs is overly sensitive and extremely complex.
Extended warranty on something, ANYTHING in the system would be welcome.
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Joined: Dec 2017
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glk 250
Same letter and MB is not giving any info
Maybe this has already been discussed?
Anyway, today I received a letter from MB Canada. It stated that Daimler have determined that a defect may exist in the emission control system on 2013-2015 cars and that our GLK250 is one of the models affected.
They say that the soot particulate sensor may fail and trigger diagnostic / Check Engine light which would prevent system from monitoring other potential problems.
As a result, they are extending warranty on the sensor to 10 year.s or 193k km. (I thought we had 8 years anyway, so not too generous!)
Seems to me, that if Daimler know there is a fault, it should be fixed, not wait for failure!
Anyway, today I received a letter from MB Canada. It stated that Daimler have determined that a defect may exist in the emission control system on 2013-2015 cars and that our GLK250 is one of the models affected.
They say that the soot particulate sensor may fail and trigger diagnostic / Check Engine light which would prevent system from monitoring other potential problems.
As a result, they are extending warranty on the sensor to 10 year.s or 193k km. (I thought we had 8 years anyway, so not too generous!)
Seems to me, that if Daimler know there is a fault, it should be fixed, not wait for failure!
Newbie
Joined: Dec 2017
Posts: 2
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glk 250
i received the same letter from MB. The check engine light came on 3 weeks ago. The code that I received using my tester is P24AF : Particulate matter sensor circuit/range/performance.
I called MB Canada and they said that they cannot give me the associated code for the soot particulate sensor.I have to go to the dealer and if it is the sensor, I would not have to pay.If it is not the sensor, I will have to pay for the check engine analysis $$$$$.
I called MB Canada and they said that they cannot give me the associated code for the soot particulate sensor.I have to go to the dealer and if it is the sensor, I would not have to pay.If it is not the sensor, I will have to pay for the check engine analysis $$$$$.
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Did find the wiring diagram for the DEF tank and it's level sensors. Looked like there is a common electrode plus three level probes. Must measure current or voltage between probes and common via the DEF which is conductive.
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2013 GLK 250 BT
i received the same letter from MB. The check engine light came on 3 weeks ago. The code that I received using my tester is P24AF : Particulate matter sensor circuit/range/performance.
I called MB Canada and they said that they cannot give me the associated code for the soot particulate sensor.I have to go to the dealer and if it is the sensor, I would not have to pay.If it is not the sensor, I will have to pay for the check engine analysis $$$$$.
I called MB Canada and they said that they cannot give me the associated code for the soot particulate sensor.I have to go to the dealer and if it is the sensor, I would not have to pay.If it is not the sensor, I will have to pay for the check engine analysis $$$$$.
Last edited by bluecoupe05; Dec 10, 2018 at 02:07 PM.
Junior Member
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2013 GLK 250 BT
I have a MY2013 GLK 250 BT that threw a CEL this afternoon. I was able to read and clear the P24AF code with my icarsoft MBII diagnostic scanner. This was the only code reported and the CEL is now off. @gilleslapointe, have you been to the dealer for a diagnosis and if so, what was the resolution? Many thanks
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Joined: Jan 2019
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GLK 250
I have had the CEL on with P24AF for a few weeks now, scouring the forums for a solution. Then I found this. Has anyone had it to the dealer to determine warranty yet? I also got a P20BE "Reductant Heater "B" Control Circuit Performance" fault more recently. They are likely related.
Junior Member
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2013 GLK 250 BT
I have had the CEL on with P24AF for a few weeks now, scouring the forums for a solution. Then I found this. Has anyone had it to the dealer to determine warranty yet? I also got a P20BE "Reductant Heater "B" Control Circuit Performance" fault more recently. They are likely related.
Newbie
Joined: Jan 2019
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GLK 250
As for the reductant heater, I ordered an aftermarket heating element and installed it myself. It was quite the involved process including soldering of wires, but it fixed it.
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From: WI
GLK 250
As for the reductant heater, I ordered an aftermarket heating element and installed it myself. It was quite the involved process including soldering of wires, but it fixed it.
Could you elaborate a bit more? Are you talking about the AdBlue heater thingy or something else? Thanks in advance.
Newbie
Joined: Jan 2019
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GLK 250
The inner tank heater for DEF, yes. I got it from Xemodex online. I just looked and they don't sell the element only anymore. It's a kit, but I assume it's the same heater I got. I paid $349 CAD plus tax and shipping.
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From: WI
GLK 250
Thanks, I was keeping an eye on that myself. There is a repair kit from MB, it used to be around $800, now it's over $1k. It comes with all the parts you need, no soldering involved.
Hopefully the fact that we garage ours (even though WI gets sub-zero every winter) will keep it alive.
Hopefully the fact that we garage ours (even though WI gets sub-zero every winter) will keep it alive.
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2008 R320 CDI, 2012 GL 350
GL 350 NOx sensor
So my GL 350 had two NOx sensors replaced in March of last year by the previous owner. Now my dealer says I have a NOx sensor bad. Generally my dealer has been replacing parts under warranty that need replaced if they fail within two years per Mercedes guidelines. The previous owner had bought the SUV as a Certified Pre-Owned (CPO) vehicle. The dealer tells me they can’t be replaced under warranty as the CPO replacement does not warrant the parts for two years. I am going to suggest that the previous ones replaced should have been replaced by the emissions warranty, not the CPO. The SUV was originally sold in Pennsylvania so it should have fallen under the 7/70 emissions regulation for that state. I think the Pennsylvania regulation will apply even though the car is in Florida now. One potential issue however is the SUV has been in service 7 1/2 years but only has 60K miles on it. Any thoughts or advice would be appreciated, as I am really frustrated. Thanks!
Last edited by Jckissin; Jun 24, 2019 at 11:48 PM.
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From: WI
GLK 250
Dumb question: is your GL 350 a gasser or diesel? This thread is about Bluetec diesels and the emissions system specific to them, not gassers.
Also, the GL is not a X204 chassis. Try the X164 subcategory instead.
Also, the GL is not a X204 chassis. Try the X164 subcategory instead.
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2013 GLK250
Our 2013 GLK 250 threw this code over the Summer with ~62k miles. Just took it to the dealer. Dealer says soot sensor, wanted $900. Let's see $380 list price, available from MB for $270 shipped, or from Bosch directly if you know how to get it. Then ... in the exhaust, unscrew, electronics held with two bolts and one electric connector. Baffling how that adds up to $900.
But ... seems like no warranty coverage in the USA. Diesels are weird too, insofar as what is covered under Federal Emissions law. Wasn't worth leaning on MBUSA ... easier to spend $270 and slide under the GLK.
But ... seems like no warranty coverage in the USA. Diesels are weird too, insofar as what is covered under Federal Emissions law. Wasn't worth leaning on MBUSA ... easier to spend $270 and slide under the GLK.
