Adblue and my passat
Discussion
The Mad Monk said:
I thought a tank full of AdBlue was supposed to last the full interval between services?
Most manufacturer's will state that to comfort the owners, but then quickly have a disclaimer that driving style, weather and road surfaces and probably whether a sheep crosses the road "could" impact on consumption of adblue (i.e. basically take the MPG and apply the same disclaimer to adblue).In regards to another question about what happens if adblue runs out, well in most cars you get loads of warnings from about 800-1000 miles approx left and it will keep warning you everytime you start the car. Eventually if left it will show how many restarts the car has or miles left at which point if left the car will not start without being topped up.
I clearly somehow got away with this in the 640D as they do not have adblue, thank god. It is listed in the manual though and stupidly if mine had one it would be in the rear bumper - which makes me feel a tad uneasy considering adblue is quite damaging to painted surfaces and metal....I know that some of the X series cars have them in the engine bay or some audi's have them next to the diesel tank.
generationx said:
Another one here who had no idea about this "technology". I presume this is just modern vehicles - it's never been mentioned with our 2007 Golf.
EU6 diesels, which became mandatory in Sept 2015. It's only needed for vehicles / engines over a certain size. I don't think Golf has it at all, and Passat only has it on 190PS and above engines. I think Tiguan has it on all diesel engines.But it's likely coming on petrol cars too.
There are other engineering solutions - I don't think Mazda uses the technology (look for "SCR - Selective Catalytic Reduction) at all.
PaulGT3 said:
My mate has a 2016 Skoda Superb (190 dsg 4x4 L&k estate) with 10k miles on and the adblue system has failed, it's been at skoda 5 weeks now and they have replaced the entire adblue system and it's still not fixed. He's been given a 1.6tdi manual passat as a courtesy car and obviously isn't very impressed to be paying ~450 a month for the superb to drive around in the base model passat!
[off-topic] Was just looking at leases on an Octavia (vrs estate 4x4 DSG), they were coming out at ~£250 a month @10k miles (so another 10k each year would be about £312/month in total). £450 is almost SQ5 money!
woodypup59 said:
Just fill the Adblue tank with diesel.
Dont joke about it its worse than miss fueling !!! It would land you with a big billONLY EVER PUT CLEAN ADBLUE IN !!! water, screen wash, diesel ,etc was tried by HGV agency drivers when it first came in on trucks and wasn't the funniest thing when there was a huge bill for sensors dosing pumps and labour to remove and clean out the tank and system....
Edited by powerstroke on Friday 21st October 14:21
For those not having heard of the Ad-Blu systems (various names on other manufacturers).....
This was the system that effectively caused the massive fall from grace for Volkswagen with the scandal last year. VW were claiming that their engines were cleaner than they could possibly have been given their power outputs despite the fact that they had no ad-blu system on the engine in question.
This led other manufacturers to question their performance figures, given that the ad-blu type system costs three hundred odd quid for the manufacturer to add to each car at the factory. VW manipulated the engine management to pass tests given the a set 'car in test mode' criteria, and the results produced were similar to other vehicles with the Ad-blu system added. As soon as the car detected it was no longer in test mode, it wouldn't pass the pollution criteria.
Eventually it came out that VW cheated and therefore didn't require the expensive Ad-Blu system to produce a car that competed with other manufacturers (thus allowing them to make more profit on a car with the cheat software). The rectification for cars that had the cheat software involved would be to retard the power output of the engine so that it produced less pollution using re-programming. The newer design cars have to now incorporate an Ad-blu system. More modern designs also had the add blue, but VW were selling an old design and claiming it was clean - by cheating.
So American car owners affected by the scandal face having their engines remapped to produce less power to reach emmisions regs. Obviously, not the car they bought. Retro fitting an Ad-blu system would be cost ineffective.
This was the system that effectively caused the massive fall from grace for Volkswagen with the scandal last year. VW were claiming that their engines were cleaner than they could possibly have been given their power outputs despite the fact that they had no ad-blu system on the engine in question.
This led other manufacturers to question their performance figures, given that the ad-blu type system costs three hundred odd quid for the manufacturer to add to each car at the factory. VW manipulated the engine management to pass tests given the a set 'car in test mode' criteria, and the results produced were similar to other vehicles with the Ad-blu system added. As soon as the car detected it was no longer in test mode, it wouldn't pass the pollution criteria.
Eventually it came out that VW cheated and therefore didn't require the expensive Ad-Blu system to produce a car that competed with other manufacturers (thus allowing them to make more profit on a car with the cheat software). The rectification for cars that had the cheat software involved would be to retard the power output of the engine so that it produced less pollution using re-programming. The newer design cars have to now incorporate an Ad-blu system. More modern designs also had the add blue, but VW were selling an old design and claiming it was clean - by cheating.
So American car owners affected by the scandal face having their engines remapped to produce less power to reach emmisions regs. Obviously, not the car they bought. Retro fitting an Ad-blu system would be cost ineffective.
tigger1 said:
[off-topic]
Was just looking at leases on an Octavia (vrs estate 4x4 DSG), they were coming out at ~£250 a month @10k miles (so another 10k each year would be about £312/month in total). £450 is almost SQ5 money!
The superb is around £8k higher list price though. Also its PCP not lease.Was just looking at leases on an Octavia (vrs estate 4x4 DSG), they were coming out at ~£250 a month @10k miles (so another 10k each year would be about £312/month in total). £450 is almost SQ5 money!
woodypup59 said:
Just fill the Adblue tank with diesel.
I've seen the aftereffects of that. Not cheap for the customer! 
It goes all goopy inside the pump and kills everything from the pump to the liens to the injector.
Needless to say he had no ide how it happened, and believed that there was a design flaw with his vehicle and it should be warranty!
316Mining said:
For those not having heard of the Ad-Blu systems (various names on other manufacturers)...
Care to elaborate on your source for all that?PaulGT3 said:
tigger1 said:
[off-topic]
Was just looking at leases on an Octavia (vrs estate 4x4 DSG), they were coming out at ~£250 a month @10k miles (so another 10k each year would be about £312/month in total). £450 is almost SQ5 money!
The superb is around £8k higher list price though. Also its PCP not lease.Was just looking at leases on an Octavia (vrs estate 4x4 DSG), they were coming out at ~£250 a month @10k miles (so another 10k each year would be about £312/month in total). £450 is almost SQ5 money!
woodypup59 said:
hornetrider said:
given that adblue is cheaper than diesel.
Really ? Do you pay more than £1.50 per litre for diesel ?Edited by berlintaxi on Monday 7th November 07:47
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