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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 16th, 2014, 17:25   #16
VeeDubTDI
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To measure the amount of NOx coming out of the engine so that the emissions systems can control it.
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Old June 2nd, 2014, 12:19   #17
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Why is it that we have to replace the sensor AND the control unit, while only the sensor is faulty? the sensor alone cost +/- $25!
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Old June 9th, 2014, 07:07   #18
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Mine got replaced last week under warranty, not sure how much, got a rental too.

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Old June 9th, 2014, 10:40   #19
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$471.33 - www.genuineaudiparts.com For the control unit.
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Old June 13th, 2014, 10:09   #20
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I just returned from the dealer. Same issue and the part will arrive tomorrow with no one to replace it. Scheduled to return on Monday. Is it safe to drive the vehicle this way?
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Old June 13th, 2014, 10:11   #21
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I drove mine for two weeks with the light on while waiting for the parts.
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Old December 15th, 2014, 18:29   #22
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The NOX sensor on my 2012 Passat TDI just failed at about 50,000 miles. So far the repair cost is on me.
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Old December 27th, 2014, 15:36   #23
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Mine failed at bout 38k.

Worst part was I had just driven 400 miles and the CEL came up 10 min away from the hotel. Took it to dealer, quoted me almost 800, VWoA took care of it after a phone call same day.
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Old December 28th, 2014, 18:47   #24
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Looks like I am in the same boat with 62K miles on the car, here is the codes I pulled last week. I cleared the codes and the CEL was back 100 miles later. I wonder what my dealer is going to say, I bet the bill will be all mine. I just changed out the exhaust flapper valve, $275, dealer wanted $670 to do the job. At the rate this car is going with repair costs... I won't be saving any money driving a diesel.
2 Faults Found:
18644 - NOx Sensor 1 Bank 1
P2200 00 [096] - Electrical Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 98824 km
Date: 2028.14.30
Time: 12:19:32
18640 - Sense Circuit for Heater for NOx Sensor 1 Bank 1
P2209 00 [237] - Implausible Signal
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 98709 km
Date: 2028.14.30
Time: 11:08:28
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Old December 30th, 2014, 11:26   #25
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Mine sent a code with @ 3k miles on the car, and never acted up after that. But I sold it @ 50k miles, so don't know what happened after that.
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Old January 23rd, 2015, 07:12   #26
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Angry Just joined the NOX club

Went in for the recall cause I had a light on. Recall programming didn't fix issue (but may have avoided diagnostic charge).
NOX sensor is bad. Dealer didn't have part and ordered it. Since a non stock item made my wife pay for it before leaving.

My B:B warranty is long gone. I'm trying to follow this thread to see if emissions warranty covers this and/or if calling VW is worth it. Dealer obviously didn't suggest this was covered.

Thoughts on how to proceed? Part comes in Tuesday. Is this a DYI install?
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Old January 23rd, 2015, 07:18   #27
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B:B or emissions?

Quote:
Originally Posted by ng3 View Post
Mine got replaced last week under warranty, not sure how much, got a rental too.

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Old January 23rd, 2015, 17:33   #28
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Quote:
Originally Posted by South Coast Guy View Post
Had a nox sensor replaced under warranty.

Me too.
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Old January 23rd, 2015, 18:24   #29
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I had both go bad as well.....
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Old January 23rd, 2015, 18:25   #30
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Default Which warranty?

What specific warranty?


Quote:
Originally Posted by paulpas View Post
Me too.
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