Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.
Sounds like someone has picked up the wrong watering can to top up fluids.
trevorking1964:
Sounds like someone has picked up the wrong watering can to top up fluids.
That’s what i was thinking , i know who didn’t pick up the wrong watering can but i can guess who gets the blame
ramone:
Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.
I wonder if leaving it in there, presumably a small percentage of the whole system contents, would be detrimental or perhaps, even, beneficial? Any chemists online who could answer?
Dipster:
ramone:
Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.I wonder if leaving it in there, presumably a small percentage of the whole system contents, would be detrimental or perhaps, even, beneficial? Any chemists online who could answer?
Im [u]not[/u] a chemist, but Im pretty sure that urea is corrosive on metals. `nuff said.
Franglais:
Dipster:
ramone:
Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.I wonder if leaving it in there, presumably a small percentage of the whole system contents, would be detrimental or perhaps, even, beneficial? Any chemists online who could answer?
I
m [u]not[/u] a chemist, but Im pretty sure that urea is corrosive on metals. `nuff said.
Yeah i think its corrosive , its been in over 3 weeks and i only noticed when i came to top it up and it stank of amonia. The mechanic said adblue on Mercs use water as a coolant ■■? never heard of that 1 before , does adblue need cooling i thought it sprayed into the exhaust tank onto the fumes
ramone:
Franglais:
Dipster:
ramone:
Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.I wonder if leaving it in there, presumably a small percentage of the whole system contents, would be detrimental or perhaps, even, beneficial? Any chemists online who could answer?
I
m [u]not[/u] a chemist, but Im pretty sure that urea is corrosive on metals. `nuff said.Yeah i think its corrosive , its been in over 3 weeks and i only noticed when i came to top it up and it stank of amonia. The mechanic said adblue on Mercs use water as a coolant ■■? never heard of that 1 before , does adblue need cooling i thought it sprayed into the exhaust tank onto the fumes
Not heard of adblue needing cooling, but, there are many things I`ve never heard of! The coolant from the engine would surely warm up the adblue?
Flush with clean water, refill with correct coolant, and take top off every couple of days to sniff out for any more contamination??
No further smell, and probably as you said, wrong watering can.
Seems like it is corrosive to metal
corrosionpedia.com/definiti … 0equipment.
But that would depend on the concentration, and Adblue contains 32.5% urea, so probably not as bad as quickly. I’m not a fitter so I will defer to anyone who is.
Franglais:
Dipster:
ramone:
Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.I wonder if leaving it in there, presumably a small percentage of the whole system contents, would be detrimental or perhaps, even, beneficial? Any chemists online who could answer?
I
m [u]not[/u] a chemist, but Im pretty sure that urea is corrosive on metals. `nuff said.
The Urea crystallises inside the pump so I guess that it would do the same wherever it turns up. It’s like having an attack of gout.
Franglais:
Dipster:
ramone:
Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.I wonder if leaving it in there, presumably a small percentage of the whole system contents, would be detrimental or perhaps, even, beneficial? Any chemists online who could answer?
I
m [u]not[/u] a chemist, but Im pretty sure that urea is corrosive on metals. `nuff said.
Sounds like pish to me
Suedehead:
Franglais:
Dipster:
ramone:
Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.I wonder if leaving it in there, presumably a small percentage of the whole system contents, would be detrimental or perhaps, even, beneficial? Any chemists online who could answer?
I
m [u]not[/u] a chemist, but Im pretty sure that urea is corrosive on metals. `nuff said.Sounds like pish to me
The Adblue system doesn’t come into contact with the cooling system, its simply like a small fuel tank that supplies the Adblue fluid to an Injector/dosage valve located in the exhaust pipe just before the silencer. Electronics control a pump unit for the injecting/spraying of the fluid into the exhaust fumes. The main components of the SCR system include a tank for AdBlue, a pump unit, a dosage valve and a silencer with integrated SCR catalytic converter. It’s a mix of distilled water and 32.5% of Adblue fluid and it will have a slight smell of Ammonia. When it gets hot it decomposes into Ammonia and Carbon Dioxide and if spilt it crystalizes when dry but can be washed away with hot water. In your case Ramon, as already mentioned, somebody has topped up your cooling system with a container (watering can usually) that has also been used for Adblue, I know this because in my workshop we did the same and despite trying to keep filling cans separate and marked up people still mixed them, human error can lead to many head scratching moments in a workshop! The sprayed Adblue by the way removes Nitrogen Oxide from the exhaust fumes as it passes through the Catalytic Converter then to atmosphere. We flushed out the system every six monthly service with hot clean water. I doubt very much the amount of Adblue that may have been in the container used to top up your coolant system would have been much, it is a clear fluid and was likely a small amount in the bottom. It is corrosive to Copper and Aluminium but that’s when it is spilt on these metals rather than being in a coolant mix of many litres. A flush out of the coolant system would suffice if anyone was too concerned. Franky.
By the way don’t keep removing your coolant filler cap and sniffing the coolant, you don’t want to be breathing in carbon dioxide from the heated Adblue if your not sure how much was put in! Franky.
Suedehead:
Franglais:
Dipster:
ramone:
Is it possible for Adblue to leak into the water system on a 106XF. Mine just came back from service and the header tank stinks of Adblue. The fitters are going to drain and swill the system out.I wonder if leaving it in there, presumably a small percentage of the whole system contents, would be detrimental or perhaps, even, beneficial? Any chemists online who could answer?
I
m [u]not[/u] a chemist, but Im pretty sure that urea is corrosive on metals. `nuff said.Sounds like pish to me
Sounds like it, it even smells like it. 
Geordielad:
By the way don’t keep removing your coolant filler cap and sniffing the coolant, you don’t want to be breathing in carbon dioxide from the heated Adblue if your not sure how much was put in! Franky.
They put a new radiator and a non original DAF header tank on about 12 months ago and ever since there’s been a problem with low water warning lights coming on even though the level is fine. As usual and this happens after every service they overfill it and water leaks out of the cap. I top it up with water from our hose pipe and everythings fine apart from the warning light and buzzer which comes on probably twice a day. The last service came and they told me it was the magnets in the header tank that were the problem because the tank wasn’t an original part. I think they’ve topped it up with adblue by mistake but not realised , but how much went in i don’t know and they will never admit it. They are going to swill it out and get it up to temperature and put something similar to Calgen in to clean the system , only problem is it’s not been touched and im trying to do landfill with a midlift Merc (Hitlers Revenge) everything takes for ever at our place
Sounds like from what you say Ramon that the coolant was topped up with Adblue especially if they top it up with water as Adblue is colourless too. Shouldn’t really top a coolant system up with water though but a mix of Antifreeze/Water, however saying that Fitters know the score (hopefully, but the industry is struggling to find experienced guys these days) it just depends how bothered they are. The buzzer and warning light will no doubt be a result of not having the correct header tank, that would do my head in and I would disconnect the buzzer at least until the lot gets sorted but as you say that might not be in the too near future. Franky.
Geordielad:
By the way don’t keep removing your coolant filler cap and sniffing the coolant, you don’t want to be breathing in carbon dioxide from the heated Adblue if your not sure how much was put in! Franky.
Sniffing carbon dioxide occasionally (even in very high concentrations) won’t cause any harm. Sniffing Ammonia (which is the other product of heating aqueous urea) certainly can be harmful.
Geordielad:
Sounds like from what you say Ramon that the coolant was topped up with Adblue especially if they top it up with water as Adblue is colourless too. Shouldn’t really top a coolant system up with water though but a mix of Antifreeze/Water, however saying that Fitters know the score (hopefully, but the industry is struggling to find experienced guys these days) it just depends how bothered they are. The buzzer and warning light will no doubt be a result of not having the correct header tank, that would do my head in and I would disconnect the buzzer at least until the lot gets sorted but as you say that might not be in the too near future. Franky.
Struggling is an understatement they were advertising recently mon - fri 6 until 5 alternative sat mornings 6 until 12 £45000 a year and no one suitable applied
GEORDIELAD, Thank you very much for your explanation of AD blue i have been out of transport since 2002 however have always wondered what ADBLUE was and what was it used for i myself though it was a fuel additive i had no idea whatso ever and now thanks to you i am fully compliant with its use thank you DBP.
Geordielad:
Struggling is an understatement they were advertising recently mon - fri 6 until 5 alternative sat mornings 6 until 12 £45000 a year and no one suitable applied
[/quote]
Probably about £5000 short per year for 50 hours a week & six hours every other Saturday.