A8 / S8 (D2 Platform) Discussion Discussion forum for the D2 Audi A8 and S8 produced from 1994-2002

o2 Sensor replacement

Thread Tools
 
Search this Thread
 
Old Nov 6, 2007 | 04:45 AM
  #1  
KYNZ's Avatar
Thread Starter
AudiWorld Senior Member
 
Joined: Aug 2003
Posts: 1,515
Likes: 0
Default o2 Sensor replacement

So i am probably going to replace my pre-cat O2 sensors this winter and was wondering what the best recomendations are to do this procedure? Should i use the OEM Bosch ones or the Bosch Universals that you have to splice? is there a writeup on how to remove and replace them available somewhere? I heard the passenger side is a pain but when i had my throttle body off i could easily see the sensor...didnt look that hard to get to with a long socket extension...anyway, any help would be appreciated.
Reply
Old Nov 6, 2007 | 05:48 AM
  #2  
skiracer's Avatar
AudiWorld Super User
20 Year Member
 
Joined: Aug 2001
Posts: 3,734
Likes: 32
Default On a pre-facelift they are not difficult to get to with a decent toolbox. Make sure you have the

correct socket with the cutout for the wires. If you are good at making weatherproof in-line splices, you can save a considerable amount of $$ using the generic 4-wire Bosch sensors and splicing the old connector on to them.
Reply
Old Nov 6, 2007 | 05:54 AM
  #3  
KYNZ's Avatar
Thread Starter
AudiWorld Senior Member
 
Joined: Aug 2003
Posts: 1,515
Likes: 0
Default is this something that needs to be done on the car or can you disconnect it all and do it ...

on the workbench? i would think that doing the splice would be pretty easy on the bench but on the car would be a nightmare i would guess. Anyone have a picture of where they are located?
Reply
Old Nov 6, 2007 | 06:00 AM
  #4  
PaulW's Avatar
AudiWorld Super User
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2001
Posts: 19,020
Likes: 209
From: Wilbur by the Sea
Default You do the splice on the work bench

You don't need to do waterproof splices, the generic bosch kit has this big box looking thing that the splice sits in.....unlike the old sensors that you had to physically splice. The new ones are a crimp conneciton.
Reply
Old Nov 6, 2007 | 06:03 AM
  #5  
KYNZ's Avatar
Thread Starter
AudiWorld Senior Member
 
Joined: Aug 2003
Posts: 1,515
Likes: 0
Default where is the cheapest place to get these sensors? AND...

should i do just the pre cats or all 4?
I really dont feel like dropping the exhaust if i dont have to
Reply
Old Nov 6, 2007 | 07:36 AM
  #6  
NeilTheWheel@82atwrk's Avatar
Audiworld Junior Member
15 Year Member
 
Joined: Sep 2006
Posts: 97
Likes: 0
Default

Bosch # 15733 universal 4 wire comes all U need . I got some if you need
Reply
Old Nov 6, 2007 | 07:53 AM
  #7  
KYNZ's Avatar
Thread Starter
AudiWorld Senior Member
 
Joined: Aug 2003
Posts: 1,515
Likes: 0
Default

NEIL - YGM
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
UnderCut
12v V6 Discussion
9
Jan 14, 2011 10:29 PM
CTAudiDriver
S4 / RS4 (B5 Platform) Discussion
4
Mar 9, 2009 03:14 PM
Wheelblur
Audi allroad
6
May 4, 2007 06:30 AM
midge355
A4 (B5 Platform) Discussion
4
Nov 16, 2003 10:30 PM
awloS4
S4 / RS4 (B5 Platform) Discussion
15
Sep 30, 2003 06:43 PM




All times are GMT -8. The time now is 12:43 PM.

story-0
New Audi A6 Allroad Is The Market's Coolest Wagon: 9 Things to Know

Slideshow: Audi's latest A6 Allroad gets RS-style fenders, real off-road hardware, and enough personality to stand out in a market obsessed with crossovers.

By Pouria Savadkouei | 2026-06-16 17:31:52


VIEW MORE
story-1
10 Strangest Audi Designs That Actually Made Production

Slideshow: 10 strangest Audi designs that actually made production

By Joe Kucinski | 2026-06-10 16:32:29


VIEW MORE
story-2
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!

Slideshow: Everything you need to know about the 2027 Audi Q7 and SQ7

By Michael S. Palmer | 2026-06-09 06:02:56


VIEW MORE
story-3
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

Slideshow: Limited to just 499 units, the 987-horsepower halo car signals a new chapter for Audi performance.

By Verdad Gallardo | 2026-06-04 17:37:15


VIEW MORE
story-4
The Highs & Lows of Every Audi C-Class Generation

Slideshow: The highs and lows of every Audi C-Class generation.

By Joe Kucinski | 2026-05-27 16:05:50


VIEW MORE
story-5
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

People were more than happy to shell out big bucks for these cars.

By Brett Foote | 2026-05-27 15:32:23


VIEW MORE
story-6
10 Audi Features & Options We Miss the Most!

Slideshow: 10 Audi features and options we miss the most.

By Joe Kucinski | 2026-05-12 19:33:47


VIEW MORE
story-7
Audi Recreates Crazy-Looking Speed Record Breaker From 1935

Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.

By Verdad Gallardo | 2026-05-11 09:49:34


VIEW MORE
story-8
Coachbuilder Recreates the 1995 Audi TTS Concept

Slideshow: A Dutch coachbuilder has reimagined the original Audi TT by finishing what the 1995 concept only hinted at.

By Verdad Gallardo | 2026-05-05 15:17:58


VIEW MORE
story-9
Every Audi V10 Car Ranked!

Slideshow: Ranking every Audi V10 road car

By Joe Kucinski | 2026-04-29 16:11:56


VIEW MORE