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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW Passat Family (NMS and B7) TDIs (2012+)

VW Passat Family (NMS and B7) TDIs (2012+) Discussion area for the 2012+ Passat TDI (North American and rest of world versions versions). The North American model was previously codenamed NMS (New Midsize Sedan) and the version the rest of the world gets is sometimes referred to as B7.

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Old May 5th, 2020, 07:14   #1
Codester
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Default Question concerning P026A code thrown 2013 Passat TDI

Hey everybody I am new to forum. I just purchased a Ď13 Passat TDI with just under 60k miles on it CPO. I love it. It is an exceptional vehicle. That being said, the check engine light came on a few days ago and my diagnostic tool read P026A which from research on here I found meant something along the lines of ďFailing charge air coolerĒ. I took it in the next day, driving roughly 70 miles with the CEL on. The dealer called yesterday and said they have to replace intercooler. My main concern is the damage done already to the turbo. It is CPO which means 2 year warranty, but I would like some advice or shared experience about turbo failure after this code. Like I said, I drove approx 70 miles with this CEL on. I didnít drive it hard, but was through traffic and interstate. Should I be concerned of the condition of my turbo? I know they wonít replace turbo unless they absolutely have too... but would like any and all advice! Thank you in advance and God bless!
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Old May 5th, 2020, 08:25   #2
Tom in PT
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You should try less drastic measures first: clean the sensor at the top of the intercooler; pull the hose at the bottom of the intercooler and clean out the green oily gunk in there, and clean the intercooler as instructed by flyboybob in a thread (search for that thread, I do it annually). Do all that and clear the code and see if it comes back. When I had this code pop up a few years ago I replaced the sensor and cleaned the intercooler and no codes since. Turbo is just fine. . .

By the way, many (probably most) dealers are clueless in repairing these cars. The dealer I took it to went off on tangents and only when I pointed out the possibility of the sensor being faulty did the go in the right direction. Take the dealer recommended fix of intercooler replacement with a huge grain of salt. When I left the dealer after the initial "repair" the code popped up again on the way home, 10 miles away from the dealer.

Last edited by Tom in PT; May 5th, 2020 at 08:28. Reason: added info
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Old May 5th, 2020, 10:57   #3
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Originally Posted by Tom in PT View Post
You should try less drastic measures first: clean the sensor at the top of the intercooler; pull the hose at the bottom of the intercooler and clean out the green oily gunk in there, and clean the intercooler as instructed by flyboybob in a thread (search for that thread, I do it annually). Do all that and clear the code and see if it comes back. When I had this code pop up a few years ago I replaced the sensor and cleaned the intercooler and no codes since. Turbo is just fine. . .

By the way, many (probably most) dealers are clueless in repairing these cars. The dealer I took it to went off on tangents and only when I pointed out the possibility of the sensor being faulty did the go in the right direction. Take the dealer recommended fix of intercooler replacement with a huge grain of salt. When I left the dealer after the initial "repair" the code popped up again on the way home, 10 miles away from the dealer.
Thank you for the input! Since I bought it Friday and it threw the code Sunday, I immediately took it to VW dealer since itís under CPO warranty. I donít know enough about these vehicles yet to go messing with different hoses and what not when the VW dealership can take care of it properly under warranty. That being said, they said it would need a new intercooler so Iím gonna have to trust their judgement. Hopefully the issue will be solved. Thatís great that youíre turbo is still running strong! That makes me feel a lot better. Thanks again and God bless!
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Old May 5th, 2020, 13:49   #4
Tom in PT
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Good luck with it. Maybe the VW dealer will throw a whole bunch of parts at it and one of them will actually solve your issue and you get a free ride on it all since it is CPO.

By the way, these cars tend to have problems with the heater core and deliver poor heat on the passenger side in the wintertime. You don't have to worry about that now in Mississippi, but come December if your passenger can't keep warm return it to the dealer. There is an extended warranty on the faulty heater cores.

If you do ever plan on doing your own maintenance like oil and fuel filter changes, you will save $$$ and learn a lot more real fast about your car.
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Old May 5th, 2020, 14:30   #5
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Originally Posted by Tom in PT View Post
Good luck with it. Maybe the VW dealer will throw a whole bunch of parts at it and one of them will actually solve your issue and you get a free ride on it all since it is CPO.

By the way, these cars tend to have problems with the heater core and deliver poor heat on the passenger side in the wintertime. You don't have to worry about that now in Mississippi, but come December if your passenger can't keep warm return it to the dealer. There is an extended warranty on the faulty heater cores.

If you do ever plan on doing your own maintenance like oil and fuel filter changes, you will save $$$ and learn a lot more real fast about your car.
Oh I know it Iíve never taken a vehicle in for maintenance before. Like I said if I hadnít just gotten it 2 days prior to CEL, I wouldíve tackled it myself. Itís really just the principle of the thing considering it basically was just driven off the lot and the so called ď112 point inspectionĒ of CPO was performed.. And hopefully it will be all ok after this. I am hoping it wasnít a complete failure and the turbo wasnít that stressed. As far as maintenance though, not a stranger to filter exchange and oil changes. Truthfully itís bugging me having someone else mess with my vehicle. More of my own OCD though. I thank you for all the information and input. Lord willing I will have it back tomorrow! And I will remember that about the heater core. So glad I went with CPO I almost bought private party
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Old May 5th, 2020, 19:37   #6
flyboybob
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hi codester!

i’m sad that you’re having this problem w a car you otherwise enjoy. here’s the thread tom mentioned:

http://forums.tdiclub.com/showthread.php?t=492363

with now close to 200K miles on the clock, i haven’t had any issues like this since vw replaced the turbo in my car under the “dieselgate” fix extended warranty.

if i were a betting man, i would wager that there isn’t anything wrong w the intercooler in your car (based on my own experience and the lack of NMS intercooler issue posts on this board). that said, you need to let the dealer “do their thing“ w the warranty work. but be persistent—if (or when?) the issue returns then bring it back to them and insist they repair it under warranty.

good luck w your new ride....enjoy it safely!

bob.
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Old May 5th, 2020, 23:10   #7
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This oil in intercooler/dieselgate fix/turbo failure an issue with the Ď13s or is my Ď15 prone to the same issue(s)?


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Old May 6th, 2020, 06:10   #8
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hi codester!

iím sad that youíre having this problem w a car you otherwise enjoy. hereís the thread tom mentioned:

http://forums.tdiclub.com/showthread.php?t=492363

with now close to 200K miles on the clock, i havenít had any issues like this since vw replaced the turbo in my car under the ďdieselgateĒ fix extended warranty.

if i were a betting man, i would wager that there isnít anything wrong w the intercooler in your car (based on my own experience and the lack of NMS intercooler issue posts on this board). that said, you need to let the dealer ďdo their thingď w the warranty work. but be persistentóif (or when?) the issue returns then bring it back to them and insist they repair it under warranty.

good luck w your new ride....enjoy it safely!

bob.
Thank you for the input! I hope replacing the intercooler doesnít start a domino effect of issues just from having to remove the required equipment to do the replacement. I knew going into buying a post dieselgate car it would most likely have some issue since theyíve literally been sitting there for years not being ran. I will have to gauge mileage after the new intercooler is installed. Another reason I donít think the intercooler was completely failing is I was averaging between 48-50mpg the way to the dealer at 70mph in some places. So it would seem to me that it was either the sensor was damaged or faulty. Either way, praying I can pick it up today! Like i said before, I hate someone else messing with my ride lol. Thanks again
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Old May 14th, 2020, 11:30   #9
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Ok so now they have ordered an intercooler, itís been over a week and they were supposed to have it today. They are now saying it is in Mexico plant and with Covid 19 itís not looking good and hasnít shipped yet. Iím contemplating going and getting it and working on it myself. But it will void CPO warranty. Any suggestion? It was getting great mileage when I took it in so I think it possible that it is only a sensor issue. But canít be sure. Any advice??
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Old May 19th, 2020, 07:53   #10
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Ok so now they have ordered an intercooler, itís been over a week and they were supposed to have it today. They are now saying it is in Mexico plant and with Covid 19 itís not looking good and hasnít shipped yet. Iím contemplating going and getting it and working on it myself. But it will void CPO warranty. Any suggestion? It was getting great mileage when I took it in so I think it possible that it is only a sensor issue. But canít be sure. Any advice??
They should give you a loaner if your car is unsafe or might cause other damage to drive. I would do that.
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Old May 19th, 2020, 10:09   #11
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VoA has been placing parts in quarantine. It sucks. We've had all kinds of stuff waiting.
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Old May 20th, 2020, 04:41   #12
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VoA has been placing parts in quarantine. It sucks. We've had all kinds of stuff waiting.
Right! Supposedly VW of Mexico, where my tdi intercooler is, is now open and it is scheduled to be here next Tuesday.. thatís being said Iím not holding my breath as they have changed the scheduled arrival time two times already. Also, I was provided a loaner through enterprise at the dealershipís expense. And lo and behold if it isnít a 2020 Jetta! This thing gets 50mpg, same as my diesel. Truly amazing what they are able to squeeze out of a gasoline engine these days! So while I very much yearn for my oil burner, I am pleased with the loaner provided. Will update everyone once the replacements have been made and/if anything else goes wrong. Lord willing that wonít be the case
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Old May 22nd, 2020, 04:02   #13
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VW ended up calling me a couple days ago saying the car was all done. Charge air cooler and sensor replaced.. donít know how it magically got there in a day or two but thankful it was. The ol Passat rides just as good as it did before I took it in, but I guess itís nice to get a free new intercooler from VW.
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Old May 22nd, 2020, 04:46   #14
Tom in PT
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Suggestion: in a year from now, remove the sensor from the top of the intercooler and inspect. If you have the right tools it takes less than a minute. If it is all covered with green goo, clean it and do the cleaning procedure discussed earlier in this thread. Keep that sensor healthy and you should have no more problems with this code.
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