is it a myth our true you can use water if till you can get your hands on ad blue
Sure you can, it won’t work tho…
stvme2519:
is it a myth our true you can use water if till you can get your hands on ad blue
well i for one won’t be testing that theory,any one who does can post the result here when they get back from the job centre. 
No it’s not a myth.
Adblue is a useless addition. It just sprays the fumes in the exhaust to cool them down. Water does exactly the same thing.
The only difference between adblue and water is the TAX.
You could use nothing if you wanted.
it is a 32.5% solution of high-purity urea in demineralised water that is clear, non-toxic and is safe to handle
Urea is, in essence, a waste product. Urea is the human waste product known as urine
The 2009 Mercedes-Benz ML320 diesel model comes with the BlueTEC System to create a zero emissions vehicles. It uses a water-based urea solution (known to Mercedes as AdBlue) that is injected into the exhaust system and releases ammonia. This gets reacted with the nitrogen oxide emissions and gets converted into nitrogen and water within the catalytic converter
ad-blue is 32.5% high grade ■■■■ - 67.5% water
who ever invented this must be laughing all the way to the bank
merc0447:
it is a 32.5% solution of high-purity urea in demineralised water that is clear, non-toxic and is safe to handle
Urea is, in essence, a waste product. Urea is the human waste product known as urine
The 2009 Mercedes-Benz ML320 diesel model comes with the BlueTEC System to create a zero emissions vehicles. It uses a water-based urea solution (known to Mercedes as AdBlue) that is injected into the exhaust system and releases ammonia. This gets reacted with the nitrogen oxide emissions and gets converted into nitrogen and water within the catalytic converter
ad-blue is 32.5% high grade ■■■■ - 67.5% water
who ever invented this must be laughing all the way to the bank
Or just simply taking the ■■■■. Here is all the ballcocks about it, plus 2 Material Safety Data Sheets (MSDS)
http://dgmk.de/downstream/report_616-1_e.pdf
http://www.sciencelab.com/xMSDS-Urea-9927317
I suppose the only thing you could get is a PG9 if the VOSA bloke has a gas spectrometer in his John Bull nicking kit
So there is truth in the rumour that you can use the ad blue tank as a toilet then, well that will save using the MSA`s parking area. 
Water certainly works in a 2007 DAF 105 without any ill effect, a guy I worked for recently insisted that we use only water.
Im told thought that it wont work in the 2008 models - dont know why.
Putting anything other than Ad Blue in will bugger up the SCR
What is an SCR?
SCR stands for Selective Catalytic Reduction. Vehicles which are equipped with an SCR will carry an AdBlue storage tank in addition to the standard fuel tank. AdBlue is transferred from the storage tank and injected under pressure into the exhaust gases where a series of chemical reactions take place.
Essentially the process involves the AdBlue mixture being passed on to the super heated porous ceramic head of the SCR where the de-ionised water evaporates and the remaining urea is passed on as a reagent (breaking the Nitrous Oxides into mostly Nitrogen and Water).
Any contaminants present in the AdBlue will collect on the SCR, eventually causing it to clog and fail, therefore it is imperative for the AdBlue to remain free from impurities through all stages of production, storage and dispensing.
Pretty much like putting 4 star in your cat.
Just a quick question…but where does the “urea” come from?.
I mean, who actually collects it and how■■? 
Is it animal or human and are there tankers driving around loaded with it■■?
bullitt:
Just a quick question…but where does the “urea” come from?.I mean, who actually collects it and how■■?
Is it animal or human and are there tankers driving around loaded with it■■?
if there are then could that be classed as “taking the [zb]” 
( language edit ) jd
Santa:
Putting anything other than Ad Blue in will bugger up the SCR
I hope you don’t believe everything the polititions want you to believe.
Santa:
Pretty much like putting 4 star in your cat.
Havent tried that,do you think it will rid them of fleas,frontline does’nt seem to work as well as it used too.
The reason it may bugger up the works is more to do with using ■■■■ than adblue, adblue is manufactured to a specification.
If you read the first link I put in it says that Urea is a solid and the simplest way to be able to inject it into the exhaust system was to mix it with water.
Using water may well bugger up the reading from the emissions but I reckon a new SCR will still be cheaper than all the wind and ■■■■ you have injected up your chimney pot.
There are hundreds of tankers driving around with Adblue, they normally say Brenntag Air-One on the side.
The truck will use 5% of the fuel used in Adblue which will cost you 65 pence per litre. How much will it cost you to buy one SCR to keep in the shed to be used at MOT time?
Or why not just buy EGR and save money on a bigger diesel fuel tank
The reason Ad-Blue will be required for newer motors is down to the fact that the requirements are changing. For your motor to comply with euro 5 it has to have Ad-Blue or EGR.
And the industry is certain they will need EGR as well as SCR to meet euro 6, so get used to smelly horrible ad-blue.
The 2008 models aren’t the only ones it won’t work on. In a year or so, the older euro 5 SCR engines will get reprogrammed, and they will go into “limp home” mode if the exhaust sensor detects the failure of the SCR for any reason.
I think this will be about the point the Euro 4 engines stop qualifying to low emission certs or something.
Can you still drive if the adblue has run out or can it harm the engine?
jonah65:
Can you still drive if the adblue has run out or can it harm the engine?
The vehicle still runs, but according to the manual (haven’t had it run out yet) to keep to legal requirements the engine runs at about 60% power.
you can run without adblue, i di for about 3 weeks while waiting for a new pump to be fitted. there were no problems with the truck it ran no problems. in general the adblu is a pain in the arse! i always get it in france on the as24 as it is only about 30p a litre against 70p in uk (thats what the boss tols me!!) nowhere near enough places have pumps in uk anyway IMHO
faulkner:
jonah65:
Can you still drive if the adblue has run out or can it harm the engine?The vehicle still runs, but according to the manual (haven’t had it run out yet) to keep to legal requirements the engine runs at about 60% power.
That is the important bit, Im not even sure about that either, Does it work like an empty washer bottle and keeps telling you that you need to fill up and sends a message to the ECU telling it to ■■■■ the driver off and cut his power output by 40%,
Other stories I heard about is the AdBlue dosing pump will burn out if it is run dry.
Quite possible. Im sure if you kept pumping the screen washer pump whilst it was dry, then it too would burn out. There is certainly no lubricating additives in the AdBlue, how can there be, you are spraying it straight onto the road or into the atmosphere.
So if the only effect of AdBlue is to cool a ceramic filter, by spraying the equivalent of Chanel Number 5 into the exhaust. (after the engine don’t forget) I dont understand how it can harm the engine.