NOX and Adblue help

ScottyCLS

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Hi folks. Sorry for long winded post about my 15 plate cls.
Had a downstream nox sensor replaced less than a year ago under warranty from
Main dealer. Now out of warranty the fault has appeared again with the same sensor and CEL on. Yesterday I got the top up Adblue warning so topped up 10l and Adblue message went away.
Tonight when driving the message ‘Adblue: engine won’t start in 480miles’ came on.
I turned off the CEL with my cheap code reader and the Adblue message has gone also. Im waiting on dealer getting back to see if they will resolve the nox sensor with the part being under 1 year old. But in meantime with the Adblue engine start message now gone is it still liable to be counting down to a non start state as I need the car for work?

Thanks in advance.
 

mioba

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Search the forum pal. Sorry to burst your bubble but its been covered do death.

The sensors in the tank become dis functional due to chemicals in the adblue. Meaning the entire tank needs replacing.

Not cheap.

Newer NOx sensors need the newer diesel gate update. Old sensors on new software wont cut it.

AFAIK MB parts are two year warranty, regardless you are in warranty so let MB deal with that sensor issue.
 

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If the message has gone, then it won’t count down in the background. However in clearing the faults, your dealer will not be able to diagnose any faults that put the engine light on. You’ll have to wait for it to happen again.
Very rare to get warranty on a part replaced under warranty.
 

ajlsl600

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The whole adblu system is r and d at owners cost. And will remain so until makers forced to give warranty on all environmental components some of DPF stuff same. 10 Yr warranty or 8 as some claim car life... And in 2 yr these issues will simply go away.
That's happy customer, happy environmentalists, happy governments, happy NHS... And prob 100 quid on new car. But unhappy makers. And design to fail policy. How t f is having to replace tank to get sensor a good use of resources policy or environmentaly justifiable . It simply time to get stuff designed for repair. Like old tellies, irons alternators, hi, fi.. Cud go on for ever. Throw away goods just clogging up the world. I recently replaced some electronic relays on a non working roller blind motor about £5 for 2. A bit of faffing around, now working fine new cost 170.00. My policy if not working interview it. Even if little known about it. What's to loose? Wud say 70% of time I wriggle the rest it was screwed anyway. I can buy a few beers with 165, or buy the grandkids something...

Sorry got a bit carried away, subject really irritates me. Let's stay on topic.
Hope u get a decent solution that does not strangle ur cc
 
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mioba

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Lets hope merc develop/update la system whereby the sensors in the tank or pump (known weak points fail) and the components are made available separately and can be replaced by the mere mortal.
Too many poorly made items nowadays with a weak component (not available) that cannot be interchanged.

For the want of a nail and all that.....
 

onefortheroad

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An indie I use told me mb now sell recon Nox sensors half price. It's basically a new sensor joined onto existing wiring from old sensor. Anyone heard of similar ???
 

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Some are exchange units but nothing is joined, just replaced.
 

mioba

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An indie I use told me mb now sell recon Nox sensors half price. It's basically a new sensor joined onto existing wiring from old sensor. Anyone heard of similar ???
look on the official MB Reman site. That they do well but domt tell anyone about it, esp considering the environment and sustainabaility and all that!
 

Botus

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Hi folks. Sorry for long winded post about my 15 plate cls.
Had a downstream nox sensor replaced less than a year ago under warranty from
Main dealer. Now out of warranty the fault has appeared again with the same sensor and CEL on. Yesterday I got the top up Adblue warning so topped up 10l and Adblue message went away.
Tonight when driving the message ‘Adblue: engine won’t start in 480miles’ came on.
I turned off the CEL with my cheap code reader and the Adblue message has gone also. Im waiting on dealer getting back to see if they will resolve the nox sensor with the part being under 1 year old. But in meantime with the Adblue engine start message now gone is it still liable to be counting down to a non start state as I need the car for work?

Thanks in advance.
the biggest issue sorting it all out so it works in the end, is the Engine ECU is full of deliberate bugs - they got found out - and wrote a good one - but half the idiots don't want it and even when you do - you need the latest DFP sensor and Mk3 NOx sensors or you can't fit the fault free map or sort the corresponding SCR update
 

ajlsl600

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So even if u don't have prob, yet should u be daft enough or unfortunate enough to take ur car to the dealer, they will they apply all the updates that will then not work with ur existing DPF, nox sensors, forcing one to pay for new sensors that were not giving one any concerns.
 

onefortheroad

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Anyone successfully had the Nox and ad blue deleted ??
 

ajlsl600

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Plenty. But not many descussin as greens don't like idea. If makers wud just not use as financial turture, blackmail. Most wud just keep it going properly. I have read from USA, Canada that many there delete DPF, adblu. Nox and swirl flaps. The last a particularly stupid design putting flaps in a plastic. Manifold that fill up with carbon, oil and gunk. Sieze, burn out Yr motor and cost you a new PLASTIC manifold.new motor, How f green ain't that system. And how many miles those bits do before I get robbed.
Until makers are forced tostop robbin us on back of gov/environment money traps its fix flaps in open. Resistor, and delete 4 me. At least until I get away from all this dtf kit to perhaps a good old hillman minx or volvo 1800 they cant even put the f engine in right way around any more. And blow up bonnet hinges, great idea as long as guy jumped on my bonnet is at pts counter. Not me.
I like comfort, but don't like robbery, so a little loss of comfort to keep a little cash in pocket is OK for me.
 

onefortheroad

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Plenty. But not many descussin as greens don't like idea. If makers wud just not use as financial turture, blackmail. Most wud just keep it going properly. I have read from USA, Canada that many there delete DPF, adblu. Nox and swirl flaps. The last a particularly stupid design putting flaps in a plastic. Manifold that fill up with carbon, oil and gunk. Sieze, burn out Yr motor and cost you a new PLASTIC manifold.new motor, How f green ain't that system. And how many miles those bits do before I get robbed.
Until makers are forced tostop robbin us on back of gov/environment money traps its fix flaps in open. Resistor, and delete 4 me. At least until I get away from all this dtf kit to perhaps a good old hillman minx or volvo 1800 they cant even put the f engine in right way around any more. And blow up bonnet hinges, great idea as long as guy jumped on my bonnet is at pts counter. Not me.
I like comfort, but don't like robbery, so a little loss of comfort to keep a little cash in pocket is OK for me.
I've been quoted £180 . Seems alot cheaper than Nox and ad blue sensors when they fail.
 

malcolm E53 AMG

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I remember a comment sometime ago on one of these threads regarding Nox sensors and Adblue tanks being more reliable in heavy goods vehicles which is no doubt true but businesses aren’t likely/won’t buy vehicles fitted out with the unreliable EU6 emissions equipment fitted to private vehicles can you image the M1 would be full of broken down trucks poor old Joe Bloggs gets sh***ed again.

As soon as I discovered that the EU6 diesels had a countdown to a no-start in the event of an Adblue fault I decided not to go near one I don’t fancy being held to ransom - rant over!
 
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We all love egr’s and the crap that fills the inlet system. Trying take something apart without crud falling into somewhere it shouldn’t is scary. A0AEBB3B-993C-4237-9441-6D9D6334D06D.jpeg 03FE437F-C011-495D-92A7-420989F76EF4.jpeg
 

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ajlsl600

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I remember a comment sometime ago on one of these threads regarding Nox sensors and Adblue tanks being more reliable in heavy goods vehicles which is no doubt true but businesses aren’t likely/won’t buy vehicles fitted out with the unreliable EU6 emissions equipment fitted to private vehicles can you image the M1 would be full of broken down trucks poor old Joe Bloggs gets sh***ed again.

As soon as I discovered that the EU6 diesels had a countdown to a no-start in the event of an Adblue fault I decided not to go near one I don’t fancy being held to ransom - rant over!
Not a rant pal, just a fact mine will be going in next month if poss
No issues yet. But it's sure to be one comming. Nice place to be when driving. But no where near quality of vdoz. Its like 2 different companies made them.
 


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