GO FISHING, use SLABSAUCE Fishing Attractant
Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: oxygen sensor 1 is bad which do i replace

  1. #1
    Join Date
    May 2006
    Posts
    65

    Default oxygen sensor 1 is bad which do i replace

    i have to replace sensor one but i dont know which one it is. Where can I find out? I left my bentley at home!

  2. #2
    Join Date
    Mar 2006
    Location
    East Brunswick, New Jersey
    Posts
    879

    Default

    One is the driver side I believe.
    '01 540it, 6/01
    '03 325i 5 speed, 9/02
    '10 535ix. 9/09
    '10 mini 6 speed
    '15 mini countryman 6 speed

  3. #3
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    6,922

    Default

    i am reasonably sure it's the left side, but i wouldn't just do one
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  4. #4
    Join Date
    Nov 2006
    Location
    Vancouver, BC
    Posts
    44

    Default

    Okay, this is what I've been told by others on this forum.

    If it's been more than 50,000 miles since they've been changed, then you should do them. If one is gone, the other likely is, or is close to it to.

    So do both, it's worth it.

    And to buy it, here's a link for you to find them at a decent price. Someone else had also given me this link.

    http://www.pelicanparts.com/BMW/cata...EXHmuf_pg2.htm

    Enjoy.
    1995 540i E34 Green V8 4.0L Auto Style 5's 200,000 KM's

  5. #5
    Join Date
    Oct 2006
    Location
    NEPA
    Posts
    936

    Default

    i would do both at the same time as well. They arent too expensive but I have a question. Dont mean to thread jack but on V8 models if you switched the connectors for the 02 sensors would it kick off a check engine light? reason is because I did tranny mounts and had to disconnect 02 sensors to get to them.

  6. #6
    Join Date
    Mar 2006
    Location
    USA
    Posts
    1,839

    Default

    shouldnt throw any error, unless the engine has problems, then you could have some new more serious problems.
    Alusil, Dinan DME | ITG Air Filter | Eibach/Bilstein HD | 26/20 Swaybars | Iridium plugs | Depo/ProLumen HID | Optima batt. | no AC | Stoptech brake lines, Frozen rotors, brass bushings, Superblue

  7. #7
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    6,922

    Default

    it would definatly piss it off, if you look at how the wires are run you can see which one is which, the computer adjusts the mixture separately for each bank of the motor, it would probably set a 02 control code for both sensors but not before screwing up the short term fuel trims, resettable on obd I cars by killing the battery

    Quote Originally Posted by markus
    i would do both at the same time as well. They arent too expensive but I have a question. Dont mean to thread jack but on V8 models if you switched the connectors for the 02 sensors would it kick off a check engine light? reason is because I did tranny mounts and had to disconnect 02 sensors to get to them.
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  8. #8
    Join Date
    Jan 2004
    Posts
    4,150

    Default Ditto, what Winfred said. It will definitely throw a code and won't run

    correctly.



    Quote Originally Posted by winfred
    it would definatly piss it off, if you look at how the wires are run you can see which one is which, the computer adjusts the mixture separately for each bank of the motor, it would probably set a 02 control code for both sensors but not before screwing up the short term fuel trims, resettable on obd I cars by killing the battery


  9. #9
    Join Date
    Oct 2006
    Location
    NEPA
    Posts
    936

    Default

    alright kool. just making sure i didnt screw anything up.

  10. #10
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,843

    Default

    i have a couple miles on the originals and still need to sort the front throttle body gasket before I change mine.

    lets see what a new one does... *patiently waits*
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

Page 1 of 2 12 LastLast

Similar Threads

  1. $775 Oxygen sensor in NC
    By Jon K in forum 5 Series BMW
    Replies: 42
    Last Post: 11-01-2007, 07:04 AM
  2. which Oxygen sensor is #2 ??
    By lvngdead in forum 5 Series BMW
    Replies: 4
    Last Post: 06-10-2006, 01:46 AM
  3. No oxygen sensor !!!
    By Ali in forum 5 Series BMW
    Replies: 11
    Last Post: 04-23-2005, 02:54 AM
  4. Should I replace Oxygen sensor @50K?
    By Warren N.CA in forum 5 Series BMW
    Replies: 2
    Last Post: 04-23-2004, 12:17 PM
  5. Oxygen Sensor
    By jbw535i in forum 5 Series BMW
    Replies: 10
    Last Post: 03-24-2004, 11:38 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •