Multiple Engine Management Faults

Mine was the regulator too. The guy who did the work reckoned that it's not particularly easy to do- i think that some rivets have to be drilled out when its changed, which might explain why they greased it, hoping that someone else would get the job next time.
 
Quick update.

Dealer just called and they believe the EGR is at fault and will be replacing it once they receive it from VW. I asked him if they are going to investigate why these EGR’s keep failing as my van is now on EGR number 3 after only 16000 miles.
Basically he talked some shit and said they will just be replacing it.

I’m no Engine or car technician but I am an electronic technician and used to fault finding and if I had a component that kept failing, alarm bells would ring as something else must becausing this component to fail and I would be investigating further to work out the route cause and not just put a plaster on it.

I am pretty sure this new EGR will fail in time as I know fully believe there must be something before it that’s not right.
I have always suspected the engine is not right and heard a lot of talk about these new Euro6 engines not being as clean or as well developed as they should be.
 
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I did some programming on some Californias over the past weekend and 2 out of the 5 T6s had EGR faults that they were not aware of.
Code:
23871 - EGR System 
          P0401 00 [096] - Insufficient Flow
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 15754 km
                    Date: 2019.01.07
                    Time: 10:02:11

                    Engine speed: 2020.75 /min
                    Normed load value: 54.5 %
                    Vehicle speed: 45 km/h
                    Coolant temperature: 59 ∞C
                    Intake air temperature: 18 ∞C
                    Ambient air pressure: 1010 mbar
                    Voltage terminal 30: 12.085 V
                    Unlearning counter according OBD: 40
                    EGR travel diagnosis: strongly increased NOx emission: 0.00 kg/h
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Act.value: 17.22 %
                    EGR travel diagnosis: marginally increased NOx emission: -31.20 kg/h
                    Mass airflow sensor 1 bank 1 airflow: raw value: 506.5 mg/stroke
                    Throttl.valve adapt. 1 bank 1: posit feedback - Act.value: 58.56 %
                    Charge press. ctrl deviation after throttle valve bank 1-Pressure_16_signed_10_mbar: -2.9 mbar
                    O2 sens. 1 bank 1 upstrm oxi cat: raw value: 2.471 counts

and
Code:
15560 - EGR Sensor 1 
          P046C 00 [104] - Implausible Signal
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 17
                    Mileage: 11071 km
                    Date: 2009.01.21
                    Time: 09:19:56

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 86 ∞C
                    Intake air temperature: 8 ∞C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 12.117 V
                    Unlearning counter according OBD: 40
                    Mass airflow sensor 1 bank 1 airflow: raw value: 0.0 mg/stroke
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Spec.value: -2.95 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Act.value: 17.11 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback -Offset closed.: 0.00 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Uncnd vlt: 2.798 V
                    EGR vacuum regulator solenoid valve 1 bank 1: res. Cooling mode stop: 2.312 V
                    EGR vacuum regulator solenoid valve 1 bank 1: res. Bypass operation stop: 2.785 V

31103 - SCR NOx Catalyst Bank 1 
          P20EE 00 [096] - Efficiency too Low
          Intermittent - Not Confirmed - Tested Since Memory Clear
 
I did some programming on some Californias over the past weekend and 2 out of the 5 T6s had EGR faults that they were not aware of.
Code:
23871 - EGR System
          P0401 00 [096] - Insufficient Flow
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 15754 km
                    Date: 2019.01.07
                    Time: 10:02:11

                    Engine speed: 2020.75 /min
                    Normed load value: 54.5 %
                    Vehicle speed: 45 km/h
                    Coolant temperature: 59 ∞C
                    Intake air temperature: 18 ∞C
                    Ambient air pressure: 1010 mbar
                    Voltage terminal 30: 12.085 V
                    Unlearning counter according OBD: 40
                    EGR travel diagnosis: strongly increased NOx emission: 0.00 kg/h
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Act.value: 17.22 %
                    EGR travel diagnosis: marginally increased NOx emission: -31.20 kg/h
                    Mass airflow sensor 1 bank 1 airflow: raw value: 506.5 mg/stroke
                    Throttl.valve adapt. 1 bank 1: posit feedback - Act.value: 58.56 %
                    Charge press. ctrl deviation after throttle valve bank 1-Pressure_16_signed_10_mbar: -2.9 mbar
                    O2 sens. 1 bank 1 upstrm oxi cat: raw value: 2.471 counts

and
Code:
15560 - EGR Sensor 1
          P046C 00 [104] - Implausible Signal
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 17
                    Mileage: 11071 km
                    Date: 2009.01.21
                    Time: 09:19:56

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 86 ∞C
                    Intake air temperature: 8 ∞C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 12.117 V
                    Unlearning counter according OBD: 40
                    Mass airflow sensor 1 bank 1 airflow: raw value: 0.0 mg/stroke
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Spec.value: -2.95 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Act.value: 17.11 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback -Offset closed.: 0.00 %
                    Exhaust recirc.valve 1 bank 1: posit.feedback - Uncnd vlt: 2.798 V
                    EGR vacuum regulator solenoid valve 1 bank 1: res. Cooling mode stop: 2.312 V
                    EGR vacuum regulator solenoid valve 1 bank 1: res. Bypass operation stop: 2.785 V

31103 - SCR NOx Catalyst Bank 1
          P20EE 00 [096] - Efficiency too Low
          Intermittent - Not Confirmed - Tested Since Memory Clear
Were they the 150bhp Engines?
 
Quick update.

Dealer just called and they believe the EGR is at fault and will be replacing it once they receive it from VW. I asked him if they are going to investigate why these EGR’s keep failing as my van is now on EGR number 3 after only 16000 miles.
Basically he talked some not good and said they will just be replacing it.

I’m no Engine or car technician but I am an electronic technician and used to fault finding and if I had a component that kept failing, alarm bells would ring as something else must becausing this component to fail and I would be investigating further to work out the route cause and not just put a plaster on it.

I am pretty sure this new EGR will fail in time as I know fully believe there must be something before it that’s not right.
I have always suspected the engine is not right and heard a lot of talk about these new Euro6 engines not being as clean or as well developed as they should be.
It is truly shocking that you are still having all of these issues @Twoguns. Especially when you were possibly the first one here reporting it, and how VW pretty much ripped your adblue system apart.
 
It is truly shocking that you are still having all of these issues @Twoguns. Especially when you were possibly the first one here reporting it, and how VW pretty much ripped your adblue system apart.
I know what you mean, it’s a joke.

Picked “it” up today after they replaced the EGR again. EGR number three so I’m expecting this one to fail at some point as I cannot accept I have been unlucky and had two defective EGR’s. My logical and technical brain screams there must be something else that it causing the EGR to fail as it just can’t cope with what is being put through it.

I was not surprised when the Service Manager admitted I’m not the only one to have EGR problems on these T6’s and they have had to change a number of them now. German engineering at its best........
 
I know what you mean, it’s a joke.

Picked “it” up today after they replaced the EGR again. EGR number three so I’m expecting this one to fail at some point as I cannot accept I have been unlucky and had two defective EGR’s. My logical and technical brain screams there must be something else that it causing the EGR to fail as it just can’t cope with what is being put through it.

I was not surprised when the Service Manager admitted I’m not the only one to have EGR problems on these T6’s and they have had to change a number of them now. German engineering at its best........
Well at least that’s made it formal; a representative of VW has admitted there is a fault with these components. Like you my sceptical mind says, “what is the trigger?” something has to be happening upstream for these to keep failing in the way that they are. Let’s wait for the recall............. turning purple already!
 
Hi guys I'm back and so is the EML. Plugged Carista in and its reading the same fault code I've had all along since 3000 miles from new, P20EE. This is 6000 miles since they change the second EGR and not to mention all the other bits and bobs. I've booked the VW recover guy for Monday so will update on his finds but I expect it will be on he back of a low loader again for the fifth time.

Out of interest does anyone know if there has been any progress with this fault as I understand a few are also getting this fault?
 
Hi Two Guns, I hope you pick this up. I am very interested in you past situation. I am in exactly the same position. Adblue issue are now starting and have started the van build and am wondering that if this does not reslove before warranty what options do I have. Any chance of a phone call as this would be much easier than writing?
Regards,
 
Hi Two Guns, I hope you pick this up. I am very interested in you past situation. I am in exactly the same position. Adblue issue are now starting and have started the van build and am wondering that if this does not reslove before warranty what options do I have. Any chance of a phone call as this would be much easier than writing?
Regards,
Hi Mate, unfortunately I’m still suffering with the same fault and I’m on just over 20000 miles. I’ve had the fault on and off since around 3000 miles. I’m currently driving around with it on now as I’ve had enough of it but stuck with it until maybe the elusive software fix is sorted or I get rid off it before the warranty expires (thankfully I extended to five years).

As you’ve probably read this thread I’ve had loads changed and at most it just delays the time between reoccurrences. The last time I had the VW call out guy come to look at it back in November, he said they were aware of it and have seen lots of it and he believed that VW have a software fix that at the time was due out mid December and that he will give me a call if he saw it come through. He said they just acknowledge and record the fault now as no point sending to dealer.
We are on first name terms now as he has been the one who has come out to me over 8 times now and sent it to the dealers 4 times on a low loader so I believe he is legitimate but he can only tell me the bullshit that comes from above him.

I’m off on holidays tomorrow so will raise the fault again when I get back and see if there is any update from him.

Sorry this is not what you wanted to hear but this seems to be a common fault now.
VW would of replaced the van at the start of the fault but as I had spent nearly £10k converting it they would not cover this cost. Unfortunately even the financial Ombudsman sided with VW on this decision so I’ve been stuck with it.
 
Two guns thank you for your response . All I can say how sorry I am to hear all the troubles you have had. This should of been good times and happy adventures but seems it been nothing but frustrations. OK I will recap on all your posts. My van is back in tomorrow for adblue 650 mile no start again. DEF injector was replaced. My concern is it was obviously not the injector as I done porbably 100miles on the new one, so why was the fault not picked up. Are proper system checks getting done.
Again thanks for your response and have good holiday and forget your van troubles .
 
Hi Mate, unfortunately I’m still suffering with the same fault and I’m on just over 20000 miles. I’ve had the fault on and off since around 3000 miles. I’m currently driving around with it on now as I’ve had enough of it but stuck with it until maybe the elusive software fix is sorted or I get rid off it before the warranty expires (thankfully I extended to five years).

As you’ve probably read this thread I’ve had loads changed and at most it just delays the time between reoccurrences. The last time I had the VW call out guy come to look at it back in November, he said they were aware of it and have seen lots of it and he believed that VW have a software fix that at the time was due out mid December and that he will give me a call if he saw it come through. He said they just acknowledge and record the fault now as no point sending to dealer.
We are on first name terms now as he has been the one who has come out to me over 8 times now and sent it to the dealers 4 times on a low loader so I believe he is legitimate but he can only tell me the bullshit that comes from above him.

I’m off on holidays tomorrow so will raise the fault again when I get back and see if there is any update from him.

Sorry this is not what you wanted to hear but this seems to be a common fault now.
VW would of replaced the van at the start of the fault but as I had spent nearly £10k converting it they would not cover this cost. Unfortunately even the financial Ombudsman sided with VW on this decision so I’ve been stuck with it.
Goodness me @Twoguns. Shocked to hear you are still suffering after all this time and when they had your van for so long and replaced pretty much everything.
 
VW have not got a clue. I would ask a remapping specialist if the adblue system can be mapped out. Perhaps replace the adblue sensor with something that makes the system think the tank is full...
 
Is it that bad? I always looked after mine own cars and knew that main dealer does not always mean top service sometimes far from it But that's goes for any garage or business. Depends.on the individuals.
Though I am thinking about I need to intervene and ask the questions on what they did and how they did it. Try and manage and get to know the individuals in the workshop . Get an idea if they give a f**k or not. Had a couple of minor things that I had with the whole experience that has got the alarms bells ringing . I see how it works out.
Regarding adblue delete , surely that's a emissions failure on MOT?
 
Hi Mate, unfortunately I’m still suffering with the same fault and I’m on just over 20000 miles. I’ve had the fault on and off since around 3000 miles. I’m currently driving around with it on now as I’ve had enough of it but stuck with it until maybe the elusive software fix is sorted or I get rid off it before the warranty expires (thankfully I extended to five years).

As you’ve probably read this thread I’ve had loads changed and at most it just delays the time between reoccurrences. The last time I had the VW call out guy come to look at it back in November, he said they were aware of it and have seen lots of it and he believed that VW have a software fix that at the time was due out mid December and that he will give me a call if he saw it come through. He said they just acknowledge and record the fault now as no point sending to dealer.
We are on first name terms now as he has been the one who has come out to me over 8 times now and sent it to the dealers 4 times on a low loader so I believe he is legitimate but he can only tell me the bullshit that comes from above him.

I’m off on holidays tomorrow so will raise the fault again when I get back and see if there is any update from him.

Sorry this is not what you wanted to hear but this seems to be a common fault now.
VW would of replaced the van at the start of the fault but as I had spent nearly £10k converting it they would not cover this cost. Unfortunately even the financial Ombudsman sided with VW on this decision so I’ve been stuck with it.

Have you looked at removing the addblue system?
 
My experience with the VAG network leads me to believe that you will not get to speak to the workshop technician. They are fitters, and follow procedures as fast as they can. They don't want to waste time talking to you They will lose their bonus as they will not complete as many jobs as they could
At the moment, MOT is a smoke test only so raised NOx levels from failed or doctored Adblue system will not be picked up. Warning lights on the dash, however, are now an MOT failure.
 
OK, so no NOX check yet for emmision testing on MOT,.well that's something.
Well I did speak to the technician yesterday and he told he done a DPF regen and a reset of the adblue system . When asking questions he was either shy or something else. He certainly had no answers and I not 100% sure on his knowledge base on the subject, though that may be unfair but my spider senses were tingling. It's intermittent fault that is not kicking in the MIL and has not been faulting when we VW . As hooting Owl quoted ' VW may have no idea on this fault ' now I believe him. So until the next 90 mile round trip ..............
 
So now have pending codes P20EE and P204F. No MIL and waiting for the dreaded 650mile warning.
 
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I'm beginning to regret buying my first ever VW never mind a T6 after reading this thread !

I had a 16 reg MB Sprinter SWB Premium Edition that was too big for my everyday use. I sold it on because of the shocking lack of customer service care.
In short, the body had started to rust from the inside out, NOT stone chips, it was bubbling under my company graphics.
I tried and tried to get them to pay attention, they after 8 months of visits and phone calls they agreed that they would fix some of it.

I fixed it, I sold it and bought a T6.

I put this picture on the Mercedes Benz UK Vans Facebook page and said, "Look, I got my paintwork issues sorted"
20190113-142031.jpg

They actually responded by saying, "good news Brian, your van looks like new again. Glad to hear your local dealer was able to help"!

Now, if this is what expert company representation is from a manufacturer I am not surprised in the level of assistance we receive.

I had to reply, "yes, it's now a Volkswagen" Funnily enough the post was removed very soon after ;):rofl:
 
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