Sold van with faulty EGR… what would you do!?

[Grey Area]

Hiya folks. I have been sold a T28 105ps 2018 Transporter panel van by a dealership. 125,000 miles.

Within 20 miles the EML was on.

Codes are:
PO40100 (EGR flow insufficient)
P164B00 (oil pressure switch malfunction)
P20EE00 (SCR NOx catalyst efficiency below threshold bank 1).

Two separate mechanics have said it needs a new EGR valve … and that there a likely other issues below that one such as the cooler and DPF.

The dealer has offered to do a ‘forced regen’ to “fix the issue in 30 minutes” and said the mechanics are wrong… “overly negative”. Dealer appears to be considering refusing the return and refund which has been requested.

I think that once there is talk of lawyers and the realisation dawns that selling a van like this isn’t really acceptable in law, they might offer to actually repair the van.

My question to you T6 enthusiasts is: if that happens should I accept, or is it better to return it and seek a different vehicle?

 

[Kind of Blue]

OK wait until tomorrow there are some very good brains about but a bit late right now take it easy.

 

[slocumjoseph]

I agree with @Kind of Blues advice. Be careful not to get fobbed off though. Renewing the EGR is a nightmare job. The bill to fix mine was £1500..and that was not even a main dealer price.

 

[Badjamin]

Agreed, wait til sunday for all the whales to chime in on this.

 

[Dellmassive]

EGR needs doing on all vans at some point, 35-80k depending on drive style.

So just ask them to do the Regen which probably won't fix the issue.

Then ask them to do the EGR replacement?

All under the warranty..... That's what's it for.


Main dealer? Or 3rd party dealer?

 

[Sasquatch]

If you're within 30 days just reject it and take your money elsewhere.

 

[jimc91]

How’s the rest of the van? If it ticks all the boxes push for a new EGR, as dell says they all need replacing at some stage, yes it’s a grand but with that kind of mileage it’s to be expected. Everyone understands about paying to have a cam belt changed or changing filters when they are blocked, unfortunately the EGR in my mind falls into the same category

 

[jimc91]

Also not sure why they are offering to do a forced regen, if they follow their own guidelines the minimum they should be doing is a flush and changing the front and rear pipes

 

[Dellmassive]

A forced Regen can actually melt the DPF. .
It's only supposed to be used in very specific situations to reduce soot load. . but if there's oil residue in there...... That will be bad.

 

[Ali-G]

If you're happy with the van and you didn't buy it from a VW main dealer, how about asking them if they would cover the cost of coding out the EGR.
They would probably be more likely to do that than pay for a replacement.

 

[Grey Area]

EGR needs doing on all vans at some point, 35-80k depending on drive style.

So just ask them to do the Regen which probably won't fix the issue.

Then ask them to do the EGR replacement?

All under the warranty..... That's what's it for.


Main dealer? Or 3rd party dealer?

Heya - whoops, I missed that bit. Third-party dealership. Their third-party warranty warranty is not good, and seemingly does not cover DPF, AdBlue, EGR etc.

 

[mmi]

PO40100 (EGR flow insufficient)

Two separate mechanics have said it needs a new EGR valve … and that there a likely other issues below that one such as the cooler and DPF.

The most likely culprit is the cooler not the valve. Anyways, proper way to repair would be to renew both.

P164B00 (oil pressure switch malfunction)

The above can be more challenging - and even more frustrating because usually it also puts engine into limp mode.
Usually the cure is to renew oil pressure regulator (instead of oil pressure switch), however also have been reported to be the oil pump itself.

Thread '[T6_measured] 01-Engine - Oil pressure switches & Oil level sensor'

22 Aug 2021

For future reference. Applicable to T6 EU6 engines.​

Oil pressure switch - F1. Switch pressure 2.3 to 3.0 bar​

Oil pressure switch for reduced oil pressure - F378 (919-040)​

Oil pressure regulating valve N428 (906-030)​

​

References:

Workshop Manual Transporter 2016- Engines: CXFA, CXGA, CXGB, CXHA, CXGC, CXHB, and CXEB, CXEC​

Note: different documents for engines built before/after August-2018.​

T6 - 2.0 Diesel EU6 Engine Wiring Diagram

2L Diesel Engine With Start/Stop Circuit Diagram Covers Euro 6 engines CXFA/CXGA/CXGB/CXHA/CXHB Please check the history/updates tab, first release is for early T6s manufactured from June 2015, second release is for vehicles manufactured from...

www.t6forum.com

...

• mmi
• 005706 005707 15188 oil pressure p164b 00 t6_measured
• Replies: 124
• Forum: Engine, Gearbox, Exhaust, Drivetrain

• 

 

[Sasquatch]

TBH you can guarantee they knew there was a problem and simply cleared the code to get it out the door. I don't believe it's a coincidence you got 20 miles up the road before having problems.

What other surprises does it have in store?

 

[Grey Area]

How’s the rest of the van? If it ticks all the boxes push for a new EGR, as dell says they all need replacing at some stage, yes it’s a grand but with that kind of mileage it’s to be expected. Everyone understands about paying to have a cam belt changed or changing filters when they are blocked, unfortunately the EGR in my mind falls into the same category

Hello. Thanks. It’s an interesting point.

Honestly the rest of the van is a bit tatty - holes on driver seat, dings, faulty electric window switch, nothing terrible. It’s recently had a new clutch and flywheel, timing belt and pump. Used commercial.

 

[WinFreak]

Hello. Thanks. It’s an interesting point.

Honestly the rest of the van is a bit tatty - holes on driver seat, dings, faulty electric window switch, nothing terrible. It’s recently had a new clutch and flywheel, timing belt and pump. Used commercial.

Give it back


I made the mistake of keeping mine and fixing it when the EGR light came on on the way home and it's been nothing but trouble the 3yrs I've owned it

 

[Sasquatch]

And give it back quick, because once you get past 1000 miles you face the scenario where they can knock money off your refund to cover the use you've had out of the vehicle.

 

[Bigsidavies]

If you're within 30 days just reject it and take your money elsewhere.

Only thing with that is that if this is a VWVC then this will be done under warranty. I believe they do the flush first and we all know the fault will come back then it’s new egr time. Hopefully all under warranty.
If the van is rejected then the next one will at some stage need a replacement egr - probably a few months down the line when the warranty has run out.
As the egr has a finite lifespan it’s inevitable that every van will need one. Better to have one where someone else foots the bill and you know you’re good for another 80k.

 

[Sasquatch]

Only thing with that is that if this is a VWVC then this will be done under warranty. I believe they do the flush first and we all know the fault will come back then it’s new egr time. Hopefully all under warranty.
If the van is rejected then the next one will at some stage need a replacement egr - probably a few months down the line when the warranty has run out.
As the egr has a finite lifespan it’s inevitable that every van will need one. Better to have one where someone else foots the bill and you know you’re good for another 80k.

But they've sent it out the door with this. What other surprises have they not old the OP about?

Call me old fashioned but id sooner take my chances with one that isn't faulty from the first drive than buy a knackered one and pray that whatever warranty it comes with will bail me out each and every time. After all, even a good one will still come with a warranty...

 

[SussexT6]

You should be covered under the sale of goods act as I had the same issue recently with a Range Rover. Bought it and then discovered the chain guides were worn the turbo was on its last legs and the DPF needed cleaning.
Originally the supplying 3rd party dealer wasnt interested but when I contacted both the finance company and trading standards they advised me to go back with the sale of goods act wording and suprise, suprise they came back with a 3K settlement figure for repairs.
So I would go back and force their hand in either fronting the repairs or taking back the vehicle.

 

[Kind of Blue]

If you're happy with the van and you didn't buy it from a VW main dealer, how about asking them if they would cover the cost of coding out the EGR.
They would probably be more likely to do that than pay for a replacement.

I do not think it appropriate to be suggesting criminal solutions t o problems even if unlikely to be caught their really ought to be prosecutions and companies caught doing it closed down and assets stripped