Yet another AdBlue error thread…

NJS5

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I wonder whether this may be a solution:-

Anti-crystallisation AdBlue solution​

Total UK has launched CLEARNOX, which prevents crystallisation in the selective catalytic reduction (SCR) system in on-road and off-road vehicles

Source

NJSS
 

mioba

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I wonder whether this may be a solution:-



Source

NJSS

Was just a matter of time till someone came up with a solution - excuse the pun.

That said who knows what the effects will be of such addidives.

Pity one cant get at the sensors that gunk up, whip them out and give them a clean and replace - not very logical set up by merc and these systems as is, must be costing them in claims. Hope they remodel the system in the future.

If Blobcat is getting this replaced every year, the claims will never end as he will perpetually claim under the new parts guarantee.

Assmuning Blobcat is a he of course.
 
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Blobcat

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Happened again today…:rolleyes:

B369661C-99A6-4387-BC8E-87AFADF03AE1.jpeg

With luck it will be sold soon… ;)
 

ajlsl600

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Thing is they'll work perfectly well without the AdBlue system... problem is that's slightly worse than a hanging offence...
IF they made the kit properly I wud be OK with replacement but until then I wud have no issues codin adblue out.. I am not gettin bend over as a captive to poor quality components.
 

supernoodle

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I wonder if there are any sensors in the AdBlue systems that would detect tap water if it were used in the tank in place of the AdBlue fluid that should be used, as it appears that apart from mechanical failure, the crystallisation of the AdBlue product is a common cause of failure?
There are combined level and quality sensors. I know some lesser brands use them, so thought Mercedes would. Even without that, it would soon throw up a NOx conversion efficiency fault. That's why the two NOx sensors, to make sure the SCR is working.
If a dealer sees that fault the first thing they should do is take a sample from the tank and check with a refractometer.
 
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Blobcat

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You are not having much luck with that system. Lets hope it is covered by what done before and is not a burden for you diring the repairs.
Thankfully it’s still under warranty
 

harrye500

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NJS5 I had a look for that Clearnox. Lots of articles on it but doesn't appear to be for sale anywhere. Possibly the solution is to drain out if in the tank for some time and then half fill with fresh so to use it up quickly?
 

NJS5

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Clearnox is for sale here.

10 litres for 24 euros.

NJSS
 

harrye500

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Super thanks NJSS I'll get some of that! We do reasonable mileage in our W213 but for peace of mind n all that! Just replaced a lot of kit for the A207 (new Trickle Charger, Petrol Stabiliser and some tools etc etc) which is currently laid up for winter so a £ month this month on the Benz front!
 

malcolm E53 AMG

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Thankfully it’s still under warranty
I’d keep it that way or get rid….it would be very interesting to know the Adblue failure rate nationally.
As already mentioned EU6 cars that stand around a lot are more likely to suffer failures.

Totally frustrated by the shortage of affordable S213 3 litre petrol engined estates even been considering a
BMW 540i touring but I know it’s not as practical and would probably end up regretting it. MB really lost the plot with petrol cars since 2010
 
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I’d keep it that way or get rid….it would be very interesting to know the Adblue failure rate nationally.
As already mentioned EU6 cars that stand around a lot are more likely to suffer failures.

Totally frustrated by the shortage of affordable S213 3 litre petrol engined estates even been considering a
BMW 540i touring but I know it’s not as practical and would probably end up regretting it. MB really lost the plot with petrol cars since 2010
It's back in with Mercedes today, confidence levels that it will be fixed are low probably turning to nil later...

It's not really MB's fault about the lack of decent petrol engines, they along with the rest were pushed towards diesels :(
 

joderest

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Why do we need ad-blue >?

My wife has a 2016 Mini Cooper Diesel, does not have ad-blue ! although its the newer BMW three pot engine.
It does seem to re generate quite often as you can hear the exhaust note change.
 

malcolm E53 AMG

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It's back in with Mercedes today, confidence levels that it will be fixed are low probably turning to nil later...

It's not really MB's fault about the lack of decent petrol engines, they along with the rest were pushed towards diesels :(
Hope you get it back sorted this time

BMW continued production of their petrol IL6 (to their credit) throughout the last 25 years while MB stopped in 1995 to resume in 2017 - so there has been availability but the 5 series doesn’t give the load capability of a
E estate unfortunately
 
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ajlsl600

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My ml has sat for near 6 month perhaps I Shud use the oil pump and suck all out. Refill with new on each home trip? Bet my supper no place to drain it. Last time home did 50 mile pointless miles on DC to try see a regen... Fa. Brain myself.
 

bladecrazy

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This is why i sold my e350 , most of our friends have done the same but as has been said finding something at a resonable price is difficult, i looked at a cls 400 in feb this year for 23k and now that car on that year is 33k.
 

harrye500

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Blob I hope yours is OK. It is somewhat worrying as the car is super. Oddly with all this used car pricing on the up, I put mine into the WBAC price thing. Good god they will pay £800 more than I bought it for! Further, a search in Autotrader give an average of 2.5k more expensive prices than I paid for the same spec and broadly similar mileage 4 months ago. Even the A207 with its very un-pc V8 is an Autotrader recommended selling price at £1500 more than it was just 4 odd months ago. What a funny time we are living in.
 
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Blob I hope yours is OK. It is somewhat worrying as the car is super. Oddly with all this used car pricing on the up, I put mine into the WBAC price thing. Good god they will pay £800 more than I bought it for! Further, a search in Autotrader give an average of 2.5k more expensive prices than I paid for the same spec and broadly similar mileage 4 months ago. Even the A207 with its very un-pc V8 is an Autotrader recommended selling price at £1500 more than it was just 4 odd months ago. What a funny time we are living in.
Have a look at "Motorway" they pay quite a bit more than WBAC - This A180d is valued at £3,750 more than it was bought for with an additional 4K miles on
 
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Update from Mercedes...

The fault code is advising that the adblue valve is the issue but they’ve tested it several times and the valve itself is working fine, and it has been replaced several times...

What they’re doing now is investigating what the issue may actually be so have said they can have it in longer to have a proper look. They advised it might (as I thought) be due to the Ad Blue crystallising and causing an issue somewhere.

As it's only covered ~11K miles in nearly 3 years some of the Adblue will no doubt be original fill so I can see that crystallising could be an issue
 

gailedee65

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Hi I’m new to this forum. Just wanted to say Mercedes need to be called out on these adblue issues. I have a 67 reg e 220 AMG 5100 MILES . The EML light came on mercedes did a diagnostic and advised the adblue pump need to be replaced cost 1650;00 . How could this be . I thought these pumps are meant to function at least up to 100,000 miles. Mercedes are ripping off its customers by putting faulty components.
 


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