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Thread: Oxygen Sensor

  1. #1
    Join Date
    Mar 2004
    Posts
    21

    Default Oxygen Sensor

    I seem to remember reading on one of the bmw forums that you could use a certain model Ford oxygen sensor in place of the $100 BMW oxygen sensor. I know this was possible with the E28s.

    Has anyone done this with an E34? And if so what is the part #?

    thanks,

    jbw535

  2. #2
    Join Date
    Dec 2003
    Location
    Canada, ON
    Posts
    732

    Default

    I received a great tip from a digester a few months ago. Allen from Simpsonville, SC, THANK YOU! Your suggestion for using the Bosch part that goes in a 5.0 liter 1990 Mustang works great on my big six. And wow what a difference in price. The local parts store wants only $39 for the Bosch part no. 13942 and then asked $132 for the part as it crossed to my BMW 535i. The sensor numbers were almost identical (off by the last digit of 1..ex..0258003008 vice 0258003009 for the new one). Better yet the sensors were identical except for the different wiring plug. Expensive plug folks!!! I just soldered the old plug onto the new sensor and everything worked great. My big six idles a little better too (it was running rich according to the black tail pipes). Response picked up and I'm hoping for better gas mileage. Once again I receive great tips from this digest...keep it up folks.

    This is from another forum... I did it on my E28 and will not do it again, the old wires were old and very hard to solder...
    '85 Euro 635csi Race Turbo, megasquirt, Group A
    '92 525i Touring 5 speed, 3.46 diff, UUC 8.5lb flywheel, soon to be turbo.
    '02 Subaru WRX Wagon with STI springs, bigger sway bars

  3. #3
    Join Date
    Dec 2003
    Location
    Canada, ON
    Posts
    732

    Default

    4. Regarding substitution, Bosch lists #13942 as its interchange for the Ford DY606 that others have recommended, and is cheaper. Cheaper still, and apparently identical to the 942 except for the connector which will be cut off anyway is 13913, whose original application was an 86 Taurus V-6, (I paid about $44 for it). This is even less than some of the kits available by mail order and given that the original application is as common as dirt, it should be in stock at any auto parts store in North America that sells Bosch. (BTW, both of these sensors appeared the same as my (literally) factory original at the tip, but the barrel was somewhat shorter) At this price, there is no reason not to change your sensor every 60,000 miles, which is Bosch's current recommendation, especially since you will get your money back in increased mileage fairly quickly- see below.


    More of it...
    '85 Euro 635csi Race Turbo, megasquirt, Group A
    '92 525i Touring 5 speed, 3.46 diff, UUC 8.5lb flywheel, soon to be turbo.
    '02 Subaru WRX Wagon with STI springs, bigger sway bars

  4. #4
    Join Date
    Jan 2004
    Location
    Sydney, Australia
    Posts
    104

    Default There's an NTK part with correct plug

    You might want to try to find the NTK equivalent which was half the price of the Bosch. The part number for an Australian 535 is OZA 527-E27. These are 4 wire direct replacement unit and come with the long harness and correct plug. The problem with all the others was the harness is very short and the plugs are wrong.

    John 535is

  5. #5
    Join Date
    Dec 2003
    Posts
    1,640

    Default

    Awesome suggestions! Thanks Bruno and John!
    Bellevue WA
    90 535iM - not much stock remains. 3.7 liters, ported head, cammed, 3.73 diffy, M5 brakes, MAFed, yadda yadda yadda
    86 Porsche 951 - Track Toy

  6. #6
    Unregistered Guest

    Default

    John, I'll get NAPA on that NGK (is that right) number tomorrow! If it is half the Bosch price and has the correct plug, no brainer!!

    Paul

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

    Default

    they are a bitch to solder because they are stainless steel, a little flux is all you need to do old copper/tin wires with ease

    Quote Originally Posted by Bruno
    the old wires were old and very hard to solder...
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  8. #8
    Join Date
    Mar 2004
    Posts
    21

    Default

    Quote Originally Posted by Unregistered
    John, I'll get NAPA on that NGK (is that right) number tomorrow! If it is half the Bosch price and has the correct plug, no brainer!!

    Paul
    Let me know what you find out? As you said a no briainer if it is a direct replacement..

    Brian

  9. #9
    Unregistered Guest

    Default

    The NAPA store wasn't all that helpful. They couldn't find the NTK (NGK?) number but did have both of the Ford sensors. Those are good numbers. The guy said he used to work at the local BMW store and their experience with non-spec O2 sensors wasn't good. I'd sure like to find that NTK (NGK?) sensor somewhere. I'll keep looking for obvious reasons.

    Paul

  10. #10
    Join Date
    Feb 2004
    Location
    Missouri, USA
    Posts
    136

    Default I used this site with GREAT success....

    Quote Originally Posted by jbw535i
    I seem to remember reading on one of the bmw forums that you could use a certain model Ford oxygen sensor in place of the $100 BMW oxygen sensor. I know this was possible with the E28s.

    Has anyone done this with an E34? And if so what is the part #?

    thanks,

    jbw535
    My last project car was an '87 Buick T-Type (a Grand National in plain clothes).
    THE best O2 sensor for them was the Denso.
    IT would stand up to leaded race fuel.
    Searching for that sensor hooked me up with:
    www.sparkplugs.com

    They have the O2 sensor we're looking for in NGK.
    Factory fit is $95
    Solder-it-yourself is like $45.
    Don't let the do-it-yourselfer scare you.
    It's a breeze.
    I just did that with my daily driver '98 Metro (don't laugh, it gets 42 MPG).
    BOTH of it's O2's would have been over $220.
    Do-it-myself only added about 45 minutes to the job and I saved $130.

    They have VERY fair shipping and lightning fast service!!!

    Our beloved Beemers only have ONE to do.
    So do it!!!

    I will, the moment I get the "Inspection 2" list completed on my 525i.

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