AdBlue Discussion and Issues
Gogi
Member
Sorry Loz....which download is this from? I've looked at the 'Removing and installing pipes for exhaust gas recirculation system' and 'Maintenance Workshop Manual' but don't see it in either! Thanks
Sorry my mistake, its the Engine SSP that's in the downloads not the engine workshop manual. I've uploaded the EGR replacement section?
T6 & T6.1 - EGR Cooler removal
Workshop manual section with an overview of the EGR valve and cooler. This also includes the removal and fitting instructions.
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T6 & T6.1 - EGR Cooler removal
Workshop manual section with an overview of the EGR valve and cooler. This also includes the removal and fitting instructions.
Daddio3750
Commercial insurance broker
Hi. We have a 2010 T5 caravelle with a 2.0 litre engine. We have similar problems. My thoughts (for what they are worth) are: people say the EGR valve is easy to clean, it is on the 2.5 engine and not the 2.0. I had an aftermarket EGR supplied by euro parts for half the cost of an original VW one and it has failed after 2 weeks. I am hearing that non OE parts are substandard. I’m not sure if I believe the supermarket fuel issue, but I know premium fuel is better because of octane rates. The van has multiple engine faults but VW are adamant that the aftermarket VW EGR valve is the cause and that a genuine VW one will fix the issues . So we will wait and see. I wouldn’t waste money on flushing. You pump some chemicals in to clear carbon. Don’t bother. Get a new one fitted. Do it at your cost. If it works, chase VW down for partial refund. If it doesn’t it has been done by a main dealer so they have to keep going at no cost until they actually fix the damn thing. Don’t wait for good will gestures. Get the van fixed and then Complain like buggery. Maybe negotiate a free service or mot. But don’t put up with the fault. I will let you know about my repair when I pick the van up on Monday next week if you like.
Gogi
Member
Thanks LozT6 & T6.1 - EGR Cooler removal
Workshop manual section with an overview of the EGR valve and cooler. This also includes the removal and fitting instructions.www.t6forum.com
Deltablues
New Member
********. UPDATE ********
Got my van back from VW today and advised there had been an issue with the EGR valve which has now been rectified and the software update has also been completed. I was advised that the problem was resolved and VW would cover 100% under goodwill with the vehicle being 4 weeks out of warranty. This gesture was made without
any quibble and it was a refreshing in comparison with with experiences. ~ Well done VW, Credit where it's due !! Staff additionally advised me that I may find it beneficial to use V`power or similar QUALITY fuel in future. Fingers crossed that's the end of the matter and it's a happy ending. Thanks also to all this assistance from this forum.
Hi Luke, Sorry for delay not been on for a while.
Regarding the EGR.
Well......................VW main dealer, replaced the forward part of the exhaust gas return (red arrow in the image, not my T6 far too clean, image from web search). They also flushed the EGR. No error code since been 3000 miles approx. MPG was not effected before or after. The code fault was P0401. Spoke to carbon clean guy, whom was most helpful mentioned the P0401 fault is....let me see if i can explain this right. Is where the exhaust gas remixes with the air before re-entry. Its not necessarily stating its a fault with the EGR, look........don't quote me on this as I don't know the engine design. If the EGR valve is blocked or stuck I suppose the same error code will be generated.
Also a colleague has a Master Tech friend at VW, whom told him to tell me that,
- VW offer a free flush once a month (not followed this up with dealer) and they have not mentioned it, surprise, surprise.
- EGR are proven to have issues due to diesel gate. The systems cannot handle the work they need to do now. Issue is not going away, if it was his T6 he said he would have it deleted. Only a highly experienced garage should perform this.
So that's where I at with it all.....until its fails again....I decided to try carbon cleaning once/twice a year, depending on XYZ.
Good luck let me know you experiences
.
Interesting information.Hi Luke, Sorry for delay not been on for a while.
Regarding the EGR.
Well......................VW main dealer, replaced the forward part of the exhaust gas return (red arrow in the image, not my T6 far too clean, image from web search). They also flushed the EGR. No error code since been 3000 miles approx. MPG was not effected before or after. The code fault was P0401. Spoke to carbon clean guy, whom was most helpful mentioned the P0401 fault is....let me see if i can explain this right. Is where the exhaust gas remixes with the air before re-entry. Its not necessarily stating its a fault with the EGR, look........don't quote me on this as I don't know the engine design. If the EGR valve is blocked or stuck I suppose the same error code will be generated.
Also a colleague has a Master Tech friend at VW, whom told him to tell me that,
Spoke to a garage (specialise in tuning and have a rolling road) and they said they could do it if becomes unmaintainable but the down side is with the DPF regen. Its possible to delete EGR and keep the Adblue working however the vehicle uses the EGR to raise temperatures to carry out a DPF regen on shorter journeys and on forced static regeneration. deleting it can cause future problems.
- VW offer a free flush once a month (not followed this up with dealer) and they have not mentioned it, surprise, surprise.
- EGR are proven to have issues due to diesel gate. The systems cannot handle the work they need to do now. Issue is not going away, if it was his T6 he said he would have it deleted. Only a highly experienced garage should perform this.
So that's where I at with it all.....until its fails again....I decided to try carbon cleaning once/twice a year, depending on XYZ.
Good luck let me know you experiences
View attachment 79748
It is obvious that the EGR cooler is too low capacity to allow for carbon buildup but I never thought about the changes made after Diesel Gate being a factor.
This has now happened repeatedly over about the last month. Adblue warning after going from 4000m to 650 m with warning plus spanner. Exhaust warning for no reason. VW assist 5 or 6 times. Now back at garage for 3rd time in as many weeks. Very unhappy.
I am staggered that others have had their vans in and out over half a dozen times for what is very obviously a known fault.
The least reliable vehicle I have ever owned- including some of the worst offerings from; Citroen (2CV6) , Fiat (1990's Cinquecento- as in The Inbetweeners) and British Leyland (Metro).
I am staggered that others have had their vans in and out over half a dozen times for what is very obviously a known fault.
The least reliable vehicle I have ever owned- including some of the worst offerings from; Citroen (2CV6) , Fiat (1990's Cinquecento- as in The Inbetweeners) and British Leyland (Metro).
Just got the 650miles adblue warning with spanner after I’d just scrolled through the MFD and it showed 3500 miles remaining.
I know I’ve only done 2000 miles since the last service and adblue refill.
We are on our outbound journey for a a few days away and if the 650 is correct I could probably just get back home.
So the question is do I call out VW assist or head for the nearest dealer? I don’t want to add adblue for fear of overfilling as I am sure it does not need any.
I know I’ve only done 2000 miles since the last service and adblue refill.
We are on our outbound journey for a a few days away and if the 650 is correct I could probably just get back home.
So the question is do I call out VW assist or head for the nearest dealer? I don’t want to add adblue for fear of overfilling as I am sure it does not need any.
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Gogi
Member
Hi Chiphil200Hi Luke, Sorry for delay not been on for a while.
Regarding the EGR.
Well......................VW main dealer, replaced the forward part of the exhaust gas return (red arrow in the image, not my T6 far too clean, image from web search). They also flushed the EGR. No error code since been 3000 miles approx. MPG was not effected before or after. The code fault was P0401. Spoke to carbon clean guy, whom was most helpful mentioned the P0401 fault is....let me see if i can explain this right. Is where the exhaust gas remixes with the air before re-entry. Its not necessarily stating its a fault with the EGR, look........don't quote me on this as I don't know the engine design. If the EGR valve is blocked or stuck I suppose the same error code will be generated.
Also a colleague has a Master Tech friend at VW, whom told him to tell me that,
Spoke to a garage (specialise in tuning and have a rolling road) and they said they could do it if becomes unmaintainable but the down side is with the DPF regen. Its possible to delete EGR and keep the Adblue working however the vehicle uses the EGR to raise temperatures to carry out a DPF regen on shorter journeys and on forced static regeneration. deleting it can cause future problems.
- VW offer a free flush once a month (not followed this up with dealer) and they have not mentioned it, surprise, surprise.
- EGR are proven to have issues due to diesel gate. The systems cannot handle the work they need to do now. Issue is not going away, if it was his T6 he said he would have it deleted. Only a highly experienced garage should perform this.
So that's where I at with it all.....until its fails again....I decided to try carbon cleaning once/twice a year, depending on XYZ.
Good luck let me know you experiences
View attachment 79748
Thought I'd update what my local VW centre said...
So I contacted my local VW repair and service centre and they have denied that this service is offered for free and on a monthly basis. Instead he said I would be charged £118.20 for diagnostics and then in would be up to VW whether or not they would do it as a "goodwill" gesture. I've asked them if the £118.20 would be reimbursed if VW covered it, just waiting to hear back. Thanks
Gordon
Daddio3750
Commercial insurance broker
Hi all.
my update is this: main dealer took 4 days to get the part in from Germany ( high demand). Cost was £706 including vat, a touch up pen and fuel cap knob. A wick burn of 50 miles and no issues. I will let you know if anything comes up again.
Genuine parts are pricey so I hope this fixes it. You would have thought that for a £700 repair bill that the garage would have washed the outside of the van! Came out as dirty as it went in!!
my update is this: main dealer took 4 days to get the part in from Germany ( high demand). Cost was £706 including vat, a touch up pen and fuel cap knob. A wick burn of 50 miles and no issues. I will let you know if anything comes up again.
Genuine parts are pricey so I hope this fixes it. You would have thought that for a £700 repair bill that the garage would have washed the outside of the van! Came out as dirty as it went in!!
I'd be quite happy with it being unwashed! The work experience lad isn't going to wash it as carefully as you would.
Thanks Gordon for the update and interesting..I cannot verify my information i was given about the free egr flush. It came from someone i don't know (carbon clean business) from i colleague of his. Glad you mentioned it though.
A lot of EGR issues here on 2017 Transporter, within three days of purchase light was on and it had to go back for a flush. They said it was probably as it sat on the lot for a year... It then happened again, and again, - I regularly take it for 'runs' but also do a lot of short city stops. I cant believe that just because long journeys are not regular that us consumers should have to deal with this.
3rd flush in 1 year of ownership, I keep sending back to VW and now they are promising a EGR valve replacement or a replacement van (with a higher cost asm mine has depreciated in value since purchase). VW commercial were incredibly unhelpful - I finally arranged to take the dealership to high court for a full refund and they are now being helpful., but VW themselves were awful. I love vans but this is ridiculous. I spoke to another dealership and the vw roadside assist that said this amount of flushing isn't normal.
The van sat around for several months due to coronavirus - no place to go or work (full tank lasted three months! and the valve problem returned immediately.
Sounds like my van with less than 35k miles on it is a dud.
Hoping for the best...
3rd flush in 1 year of ownership, I keep sending back to VW and now they are promising a EGR valve replacement or a replacement van (with a higher cost asm mine has depreciated in value since purchase). VW commercial were incredibly unhelpful - I finally arranged to take the dealership to high court for a full refund and they are now being helpful., but VW themselves were awful. I love vans but this is ridiculous. I spoke to another dealership and the vw roadside assist that said this amount of flushing isn't normal.
The van sat around for several months due to coronavirus - no place to go or work (full tank lasted three months!
and the valve problem returned immediately. Sounds like my van with less than 35k miles on it is a dud.
Hoping for the best...
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