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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 June 24th, 2015, 09:46   #1
TDINJ
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Default P2457 Code - 2014 Passat TDI

Went to autozone to have a CEL scanned. Came up as P2457. They looked it up and it is a Ford code... Researched here and found it only in the MkV forrums as an EGR efficiency issue.
I have VCDS but it's only good for the last cars I owned, MkIV TDIs.

Is this an EGR issue in the Passat CKRA engine? Or something else? Im now at about 46K miles, hopefully whatever it is, it is covered by warranty. Though I read much of the emissions stuff isn't after 30K miles.

No driveability issues, no countdown for the Adblue, and it did a regen yesterday as the fans were running at idle and idle rpm was up a bit during the process.

Thanks for any suggestions.
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2005 Jetta GLS TDI, Reflex Silver/Black, Tiptronic Auto, Bilstein TC's, VNT-17 Turbo, RC Stage II. Traded in with 312K miles.
2000 Golf GL TDI, 2Dr, Black/Tan, 5sp Bilstein TC's GLS wheels, bigger injectors and Upsolute Chip

Last edited by TDINJ; June 24th, 2015 at 10:29.
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Old June 24th, 2015, 16:10   #2
Lightflyer1
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A quick Google search of this site turned up:

http://devforums2.tdiclub.com/showthread.php?t=426483

There was some discussion about the passages being tiny in our heater cores. Might be something to this. Any repairs to the cooling system at all?
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Old June 25th, 2015, 05:10   #3
TDINJ
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Thanks for the info. Nope, no repairs to it thus far.
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2014 Passat TDI SE w/Sunroof, Platinum Gray/Titan Black.
2005 Jetta GLS TDI, Reflex Silver/Black, Tiptronic Auto, Bilstein TC's, VNT-17 Turbo, RC Stage II. Traded in with 312K miles.
2000 Golf GL TDI, 2Dr, Black/Tan, 5sp Bilstein TC's GLS wheels, bigger injectors and Upsolute Chip
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