5500 km on a new Q5 TDI and have to replace a knock sensor - Page 2 - Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more!


Q5 - Q7 For the Q5 and the new Q7

Reply
 
 
 
LinkBack Thread Tools Search this Thread Rate Thread
Old 02-19-2014, 05:41 PM   #11
Audi Forum - Posts like an S4
 
Tim$2's Avatar
 
Join Date: Nov 2010
Location: Calgary, Alberta
Posts: 207
Tim$2 is on a distinguished road
Default Re: 5500 km on a new Q5 TDI and have to replace a knock sensor

Quote:
Originally Posted by spijun View Post
LOL "knock sensor but really means oxygen sensor"

Oxygen sensor (or lambda sensor) is not the same as Nitrogen oxide sensor or NOX sensor

Knock sensor works like a microphone listening for detonation (knocking). As the name implies, it senses knocks in the engine.............

Totally different sensors with different functions: Oxygen sensor, NOX sensor, Knock sensor
I know they are different. My theory is that the service writer doesn't know they are different.
Tim$2 is offline   Reply With Quote
Old 02-27-2014, 11:03 AM   #12
Audi Forum - Posts like an A1
Thread Starter
 
Join Date: Dec 2013
Location: Ottawa
Posts: 9
obelisk is on a distinguished road
Default Re: 5500 km on a new Q5 TDI and have to replace a knock sensor

As everyone suggested (and I suspected) it is a NOx sensor and not a knock sensor. In for replacement today and hopefully I get it back tonight.

They gave me an A4 with the 2.0T as a loaner... not a fan after getting used to the Q5 TDI.
obelisk is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2004 Audi A4 - $5500.00 airwolph Audi Cars For Sale 0 09-07-2014 09:47 AM
2000 Audi 1.8T Quattro - $5500 maarp Audi Cars For Sale 0 12-29-2010 08:17 AM
Odd "metal knock" noise while in gear and slowing down davis2k 2nd gen. A3 - (Typ 8P/8PA, 2003–present) 2 02-15-2010 12:29 PM
$2,500 to replace the transmisson sensor chip??!! pyramid36 Audi Mailing List 4 03-14-2007 04:37 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 03:20 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.