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Old Dec 11, 2022 | 09:00 AM
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R350 Bluetec
Bad Smell after Field Measure installed

2013 R350 BlueTec, Toronto, Canada. We got Field Measure installed two months ago. Ever since then the exhaust gas smells very bad, ideal for a while the whole area stinks. Anyone experience the same?

Dealer also got intake manifold replaced two weeks ago. Engine light popped after Field Measure installed.
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Old Dec 11, 2022 | 12:02 PM
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Old Dec 11, 2022 | 03:28 PM
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Originally Posted by hujirong
2Ever since then the exhaust gas smells very bad,
Something is not right. I've owned a lot of Diesels over the years, and this one has the least smell of them all.
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Old Dec 12, 2022 | 06:42 PM
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Yes, it wasn't any smell before. I have a super good nose, btw. This early morning, I smelled the same at a red light, found a Blue Efficient E Class next to me. Wondering this Field Measure might be using something similar to this Blue Efficient, maybe another scam?
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Old Dec 13, 2022 | 11:34 AM
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just got mine installed yestarday on my R350 2011 (bluteec field measure), have'nt noticed bad smell so far my noticed lack of power from motor whwn cold and motor stall when cold and putted to gear, dealer says must let the car heatin some minutes before putting it in gear, have experienced some loss of power or engine stall after your field mesure ??
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Old Dec 13, 2022 | 12:01 PM
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Originally Posted by snow501
just got mine installed yestarday on my R350 2011 (bluteec field measure), have'nt noticed bad smell so far my noticed lack of power from motor whwn cold and motor stall when cold and putted to gear, dealer says must let the car heatin some minutes before putting it in gear, have experienced some loss of power or engine stall after your field mesure ??
Not sure about the power lost, but make sense, they were cheating right? I don't drive this car often, mostly only for long trips, learned diesel cars are bad for short trips, we've replaced the NOX sensor at 50kkm, paid 3k, same problem happened before the Field Measure was installed (NOX sensor again replaced to get rid of that engine light).
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Old Dec 13, 2022 | 01:30 PM
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Originally Posted by hujirong
Not sure about the power lost, but make sense, they were cheating right? I don't drive this car often, mostly only for long trips, learned diesel cars are bad for short trips, we've replaced the NOX sensor at 50kkm, paid 3k, same problem happened before the Field Measure was installed (NOX sensor again replaced to get rid of that engine light).
No car is good for short trips. My friend's wife drove Lexus SUV. On her 3 miles commute it averaged about 5 mpg, so friend bought her GLK Bluetec, so she can drive on tank for month. We are in Las Vegas, so engines warm very fast, but after a year they did not notice any issues with short trips.
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Old Dec 13, 2022 | 10:31 PM
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Originally Posted by snow501
just got mine installed yestarday on my R350 2011 (bluteec field measure), have'nt noticed bad smell so far my noticed lack of power from motor whwn cold and motor stall when cold and putted to gear, dealer says must let the car heatin some minutes before putting it in gear, have experienced some loss of power or engine stall after your field mesure ??
Originally Posted by hujirong
Not sure about the power lost, but make sense, they were cheating right? I don't drive this car often, mostly only for long trips, learned diesel cars are bad for short trips, we've replaced the NOX sensor at 50kkm, paid 3k, same problem happened before the Field Measure was installed (NOX sensor again replaced to get rid of that engine light).
AEM was completed on mine prior to my purchase and it has done fine starting cold. Atleast down to about 25F so far. I always let my diesels warm up a bit before taking off if anything to defrost the windows. That said it sounded fine after a few seconds.

Dont think they were cheating necessarily, they never admitted to it just settled. Even if they were the mapping that they changed wouldnt cause issues cold start and honestly the mileage difference would be negligable if assuming anything is common among diesels US over. Even the VWs that WERE cheating didnt have a huge loss of mileage from what Ive scene. Those 4 bangers are still getting low 40s mpg depending on the application and driving (maybe 3mpg give or take difference).

With the amount of poor mechanics abilities I have read about on these AEM updates would look there first. Not to mention if its been one day maybe everything in the trans needs to be relearned although it shouldnt stall on ya.
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Old Dec 22, 2022 | 08:07 PM
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2016 GL350
Originally Posted by hujirong
2013 R350 BlueTec, Toronto, Canada. We got Field Measure installed two months ago. Ever since then the exhaust gas smells very bad, ideal for a while the whole area stinks. Anyone experience the same?

Dealer also got intake manifold replaced two weeks ago. Engine light popped after Field Measure installed.
I am experiencing a very bad smell after they installed the field measure on February 2022. Anyone did a follow up on this with the dealership?
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Old Oct 4, 2024 | 01:09 PM
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2013 GLK 250
Diesel exhaust smell after field measure

Originally Posted by Ron_@bu
I am experiencing a very bad smell after they installed the field measure on February 2022. Anyone did a follow up on this with the dealership?
reviving this old thread wondering whether any of you got the diesel exhaust smell after the field measure was installed addressed. My 2013 GLK 250 is having the exact same problem ever since the field measure was completed two years ago. Some days it only smells for a brief period of time whether the engine is cold or at operating temperature. Some days it sticks around for the entire drive. I do not do any short trips less than 30km at a time.
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Old Oct 5, 2024 | 10:42 PM
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Originally Posted by GLK250-AB
reviving this old thread wondering whether any of you got the diesel exhaust smell after the field measure was installed addressed. My 2013 GLK 250 is having the exact same problem ever since the field measure was completed two years ago. Some days it only smells for a brief period of time whether the engine is cold or at operating temperature. Some days it sticks around for the entire drive. I do not do any short trips less than 30km at a time.
I would have all connections checked out. I did not have this problem however when I was working on my car noticed the DEF injector had bunch of dried DEF around it. When I checked it wasnt even hand tight, they installed it but forgot to tighten it up.
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Old Oct 5, 2024 | 11:58 PM
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Interesting! Thank you. I will check connections like this out.
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Old Oct 14, 2024 | 04:41 PM
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Can someone describe the smell? If you are in the middle of a regen, it can smell like burning plastic.
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Old Oct 15, 2024 | 10:42 AM
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Originally Posted by Quint22
I would have all connections checked out. I did not have this problem however when I was working on my car noticed the DEF injector had bunch of dried DEF around it. When I checked it wasnt even hand tight, they installed it but forgot to tighten it up.
Ditto on that.
I did AEM on 4 Bluetecs and 3 of them had it butchered.
Finger-tight sensors, modules hanging loose on cables, wiring rubbing against sharp edges of heat shields, shipping stickers left on new DPF, what is fire hazard.
Job ethics in America are down the drain.
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Old Nov 7, 2024 | 07:59 PM
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I had the Field Measure (recall) done on my 2012 E350 E Class and I too now have this smell. It doesn't smell like that diesel truck exhaust, there is no smoke coming out. Instead it's this very weird and nasty chemical smell, completely different and distinct from that typical diesel exhaust smell you'd get from a diesel car/truck with no emissions systems onboard. It's the most noticable on cold starts. I now always have to make sure that all the doors are closed and all the kids are inside the car, before first starting it up in the morning. Once the engine is nice and hot, the smell almost completely goes away. Still there but it's almost un-noticable when the engine is hot. When it's cold, the smell is very obnoxious of you stand behind the car. It's kind of like the smell off the DEF fluid mixed with something else.
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Old Nov 7, 2024 | 10:55 PM
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Originally Posted by Ceric
I had the Field Measure (recall) done on my 2012 E350 E Class and I too now have this smell. It doesn't smell like that diesel truck exhaust, there is no smoke coming out. Instead it's this very weird and nasty chemical smell, completely different and distinct from that typical diesel exhaust smell you'd get from a diesel car/truck with no emissions systems onboard. It's the most noticable on cold starts. I now always have to make sure that all the doors are closed and all the kids are inside the car, before first starting it up in the morning. Once the engine is nice and hot, the smell almost completely goes away. Still there but it's almost un-noticable when the engine is hot. When it's cold, the smell is very obnoxious of you stand behind the car. It's kind of like the smell off the DEF fluid mixed with something else.
Think your right about the emissions system causing it. My truck would do this when going into regen, most noticeable when coming home and it was all working. On the benz I notice the regen smell usually when stopping after long haul.
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Old Nov 8, 2024 | 09:42 AM
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Regen smells like melting plastic on mine. Sort of like getting a plastic shopping bag wrapped around the converter.
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Old Nov 14, 2024 | 12:32 PM
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Originally Posted by John CC
Regen smells like melting plastic on mine. Sort of like getting a plastic shopping bag wrapped around the converter.
This is normal regen smell for all modern diesel engines. What varies is how much of that smell gets into the cabin.
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Old Apr 10, 2025 | 01:13 PM
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Any further updates or news on this issue? I can no longer park the car and have it sit while idling. Because after a short time the smell gets so bad and overpowering on the outside that the AC system starts to draw the he smell in to the interior of the car. It doesn't smell like soot or diesel, or even burning plastic. It's this very acrid toxic chemical smell. Never smelled anything like it before.
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Old Apr 11, 2025 | 07:29 AM
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Originally Posted by Ceric
Any further updates or news on this issue? I can no longer park the car and have it sit while idling. Because after a short time the smell gets so bad and overpowering on the outside that the AC system starts to draw the he smell in to the interior of the car. It doesn't smell like soot or diesel, or even burning plastic. It's this very acrid toxic chemical smell. Never smelled anything like it before.
Sounds like you might be catching it in the middle of a regen. It's an awful smell, first time that happened to me pulling into the garage I was sick for a while after. Much worse than the smell of regular diesel exhaust, which I kinda like.
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Old Apr 11, 2025 | 02:52 PM
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Originally Posted by Ceric
I can no longer park the car and have it sit while idling.
Is this all the time, or only every 100 miles or so? If it's all the time, I don't think it is connected to the regen cycles. Could it be the urea (DEF) you're smelling? I can smell that sometimes right after I start mine, but don't really notice it any other time. I think it's sort of reminiscent of chlorine in a pool, or bleach.
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Old Apr 13, 2025 | 10:25 PM
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Ceric, do you have a scanner with which you can monitor regens and see if there's a correlation between the smell and the regen process?
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