AudiWorld Forums

Q5/SQ5 MKI (8R) Discussion Discussion forum for the First Generation Audi Q5 SUV produced from 2008 to 2017

2014 Q5 TDI post fix issues O2 Sensor check engine

Thread Tools
 
Search this Thread
 
Old 05-05-2019, 03:24 PM
  #31  
AudiWorld Senior Member
 
Mythdoc's Avatar
 
Join Date: Jan 2017
Location: Knoxville, Tennessee
Posts: 975
Received 162 Likes on 124 Posts
Default
Originally Posted by Barraged
Had my O2 sensor replaced at 45,000, CEL was intermittent for about a week before I got to my dealer... sounds all too common. My SA told me to drive it more “spirited” to extend the life of the sensor.

Is there any evidence of that? I typically shift at fairly low RPM, 2,200-2,500...occasionally at 3-3,500. Am I babying my TDI?
The only thing I’d recommend is every so often to go full out on the throttle on a fully warmed up engine for about 10 seconds. I do it at least once every time I drive, usually pulling onto the freeway in manual mode. I also, always, use diesel additive for lubricity and cetane boost. That said, if you do neither of these things, Audi is still required to pay for your O2 sensors, lol.
Mythdoc is offline  
Reply Like
Old 05-05-2019, 03:48 PM
  #32  
AudiWorld Super User
 
KevinGary's Avatar
 
Join Date: Mar 2005
Location: Long Island, New York
Posts: 9,691
Received 882 Likes on 721 Posts
Default
Originally Posted by JoeRJGR1
makes me the think they really don't have a permanent t fix yet...
There are reports of a few of the post fix cars being bought back under the lemon law.
KevinGary is offline  
Reply Like
Old 05-06-2019, 04:02 AM
  #33  
AudiWorld Junior Member
 
JoeRJGR1's Avatar
 
Join Date: Jul 2009
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default
Interestingly enough....when I was on the test drive it wasn't until I really punched it that it blew the code
JoeRJGR1 is offline  
Reply Like
Old 06-07-2019, 06:32 AM
  #34  
AudiWorld Newcomer
 
KSaucier's Avatar
 
Join Date: Jun 2019
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default
I have had the exact same problem. It's extremely frustrating!
KSaucier is offline  
Reply Like
Old 06-07-2019, 02:05 PM
  #35  
bpp
AudiWorld Super User
 
bpp's Avatar
 
Join Date: Nov 2000
Location: Nazareth, PA
Posts: 7,937
Received 16 Likes on 15 Posts
Default Another link for TDI emission fix
For those who may have missed my recent posts on O2 sensors etc..
https://www.audiworld.com/forums/q5-.../#post25327035
bpp is offline  
Reply Like
Old 06-21-2019, 07:26 PM
  #36  
AudiWorld Junior Member
 
Gold1977's Avatar
 
Join Date: Jun 2019
Posts: 6
Received 1 Like on 1 Post
Default
I have a 2016 Q5 TDI, which I love. I purchased it brand new almost a year ago. June 30, 2018) Within 3,000 miles (Sept 2018 )my check engine light came on and it was the 02 Sensor. I have had 2 more check engine lights all 02 sensors. Last month they replaced the turbo charger and did the 15,000 mile service. I drove out of the dealership at 2:15pm and the following day started up my car at 9:15am and the check engine light went on. Brought it in to the dealership and guess what it was? 02 sensor again. All the work was done at the Audi dealership. Technically it is a lemon now and AofA contacted me yesterday regarding buyback. I have also gotten a lawyer. Anyone have any experience with this and any suggestions?
Gold1977 is offline  
Reply Like
Old 06-22-2019, 01:48 AM
  #37  
AudiWorld Super User
 
KevinGary's Avatar
 
Join Date: Mar 2005
Location: Long Island, New York
Posts: 9,691
Received 882 Likes on 721 Posts
Default
Originally Posted by Gold1977
I have a 2016 Q5 TDI, which I love. I purchased it brand new almost a year ago. June 30, 2018) Within 3,000 miles (Sept 2018 )my check engine light came on and it was the 02 Sensor. I have had 2 more check engine lights all 02 sensors. Last month they replaced the turbo charger and did the 15,000 mile service. I drove out of the dealership at 2:15pm and the following day started up my car at 9:15am and the check engine light went on. Brought it in to the dealership and guess what it was? 02 sensor again. All the work was done at the Audi dealership. Technically it is a lemon now and AofA contacted me yesterday regarding buyback. I have also gotten a lawyer. Anyone have any experience with this and any suggestions?
Take a look at this thread over at the TDi Club forum.

Is this the first 3.0L TDI Gen 2 buyback, potentially? - TDIClub Forums
KevinGary is offline  
Reply Like
Old 06-23-2019, 07:48 AM
  #38  
AudiWorld Senior Member
 
Mythdoc's Avatar
 
Join Date: Jan 2017
Location: Knoxville, Tennessee
Posts: 975
Received 162 Likes on 124 Posts
Default
Originally Posted by Gold1977
I have a 2016 Q5 TDI, which I love. I purchased it brand new almost a year ago. June 30, 2018) Within 3,000 miles (Sept 2018 )my check engine light came on and it was the 02 Sensor. I have had 2 more check engine lights all 02 sensors. Last month they replaced the turbo charger and did the 15,000 mile service. I drove out of the dealership at 2:15pm and the following day started up my car at 9:15am and the check engine light went on. Brought it in to the dealership and guess what it was? 02 sensor again. All the work was done at the Audi dealership. Technically it is a lemon now and AofA contacted me yesterday regarding buyback. I have also gotten a lawyer. Anyone have any experience with this and any suggestions?
I owned my Touareg 7 years, drove it 72K mikes, and VW bought it back for $48K, just $6K less than I paid. If your vehicle qualifies, pursue a buyback and find another car to love, preferably one that doesn’t send you back to the dealer every other week.
Mythdoc is offline  
Reply Like
Old 06-23-2019, 11:57 AM
  #39  
AudiWorld Junior Member
 
HuemanA6's Avatar
 
Join Date: Feb 2017
Location: Western Mass.
Posts: 18
Likes: 0
Received 0 Likes on 0 Posts
Default
4 NOX sensors and counting, the CEL came on again Thursday!
HuemanA6 is offline  
Reply Like
Old 06-24-2019, 01:00 PM
  #40  
AudiWorld Super User
 
DennisMitchell's Avatar
 
Join Date: Oct 2001
Location: Long Island, NY, USA
Posts: 2,625
Received 61 Likes on 56 Posts
Default
My engine light came on last week. Scan shows errors for a oxygen sensor. Have to make appointment. This is the third time for me since TDI fix.
DennisMitchell is offline  
Reply Like
The following users liked this post:
Barraged (07-03-2019)



Advanced Search
Quick Reply: 2014 Q5 TDI post fix issues O2 Sensor check engine


Reply Closed Thread Share

All times are GMT -8. The time now is 11:58 AM.