AdBlue refill
From Wikipedia:
Urea or carbamide is an organic compound with the chemical formula (NH2)2CO. The molecule has two amine (-NH2) residues joined by a carbonyl (-CO-) functional group.
Urea plays an important role in the metabolism of nitrogen-containing compounds by animals, and is the main nitrogen-containing substance in the urine of mammals. Being solid, colourless, odorless, neither acidic nor basic, highly soluble in water, and relatively non-toxic, urea is widely used in fertilizers as a convenient source of nitrogen.
$220 (15 gal) is an outrageous price to pay for a water base solution of what is basically a fertilizer. As more manufacturers use the system to control NOx in diesel exhaust, the competition for supply should bring the cost down. See your local farm supply house for info on the price farmers pay for bulk quantities of urea fertilizer.
It is TYPICAL to refill adBlue every motor oil change. That's the size of the tank.
The only comparable "other fluid" is the diesel in the fuel tank. It's a consumption item, not a lubricant or coolant.
@service A, it took about 5 gallons to fill, this was provided in half gallon bottles @ 11 USD each.......tank holds 8 gallons.
They had forgot to even check it until reminded, and couldn't tell me when they were ever going to get the proper (bulk) servicing equipment.
Then there's labor......
Last edited by muchsnow; Jul 27, 2009 at 11:35 AM. Reason: spelin
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They should be giving the stuff away to encourage more bluetech takers not raping us....
Neil
The Best of Mercedes & AMG
http://www.detroitdiesel.com/emissions/epa2010/

I had to add 5 Litre for about 12000 km mixed drived, so the total price ended in 3,14 Euro.
However, it took 10 min to get it in, due to the big pressure in the pump. That is why it in the manual is written, do not use a pump.
https://mbworld.org/forums/gl-class-...art-adblu.html
I wanted to get the 1/2 gallon bottles to use, but the MB dealer says they are on national backorder. He checked with his techs who said they were filling the tanks with funnels.
There is no need to use the 'official' M-B BluTec fluid, any urea solution meeting the international standards DIN 70070 [or later ISO standard] are acceptable. It is a expendable fluid just like diesel is expendable. M-B doesn't specify 'approved' diesel sources; neither do they specify AdBlu (or BluTec) sources.
Also I have service A due here soon. We're going to have my own shop do it. I own a limo business. I havnt looked into it yet but is service A just : oil change, oil and lube up front end, and fill up adblue? I know it uses a specific oil which I believe is "OEM Mobil 1 5w40 ESP Formula M" , can anybody verify this is correct? How many quarts of this oil do you need?
Also does adblue just fill up easily with a funnel?
Last edited by pteam; Nov 20, 2011 at 09:40 PM.







