Oxygen sensor - BMW Luxury Touring Community
 
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post #1 of 11 Old Dec 3rd, 2006, 1:44 pm Thread Starter
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Oxygen sensor

I've looked through the owner's/service manual and can't find anything about replacement of the O2 sensor. Auto mfg's reccommend replacement every 30k-50k miles, is there a replacement requirement for the LT? Other than if/when it gets contaminated.
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post #2 of 11 Old Dec 3rd, 2006, 2:13 pm
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I think it is an "as needed" item for maintenance reasons....but if you decide to change it you may want to look at the link below for purchase.

http://beemerboneyard.com/11781464492n.html


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Ron


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post #3 of 11 Old Dec 3rd, 2006, 2:37 pm
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O2 sensor

$80 dollars through mail order at Auto Zone. The part number is listed here in one of the forums.
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post #4 of 11 Old Dec 3rd, 2006, 4:11 pm Thread Starter
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Thanks for the link. I am a firm believer in replacing O2 sensors on a regular basis. A malfunctioning/poisioned O2 sensor will cause an improper air/fuel mixture and that can lead to catalytic converter breakdown. which once started is an irreverseable process that can't be stopped.
It looks like it isn't a heated sensor either. All the more reason to change it on a schedule.
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post #5 of 11 Old Dec 3rd, 2006, 6:54 pm
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Quote:
Originally Posted by Morley
Thanks for the link. I am a firm believer in replacing O2 sensors on a regular basis. A malfunctioning/poisioned O2 sensor will cause an improper air/fuel mixture and that can lead to catalytic converter breakdown. which once started is an irreverseable process that can't be stopped.
It looks like it isn't a heated sensor either. All the more reason to change it on a schedule.
A good reason to upgrade to a Remus. No catalytic converter at all.

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post #6 of 11 Old Dec 4th, 2006, 10:39 am
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Question

Quote:
Originally Posted by Steve_R
A good reason to upgrade to a Remus. No catalytic converter at all.
Interesting I guess you just disconnect and tie off plug?

Pete Murray
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post #7 of 11 Old Dec 4th, 2006, 10:51 am
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Quote:
Originally Posted by Steve_R
A good reason to upgrade to a Remus. No catalytic converter at all.
Is that true??? Strange if it is. The Motronic adjusts the fuel/air mixture based on feedback from the O2 sensor, so without one it is "blind". Also, it should set error codes in the Motronic when the O2 sensor input does not conform to the expected voltages. Having a bad, or worse, missing O2 sensor should screw up the fuel injection timing for mixture control either running the engine too lean or too rich.

I know on my BMW cars error codes and "check engine light" warn of any unexpected feed back from the O2 sensors. I have had to replace all FOUR O2 sensors on the 740! That is nearly $400 worth! Of course in CA you automatically fail smog check if an engine check light is on. The "check only" smog stations look at that first, and if on tell you that you have to get it repaired before they can run the test.

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post #8 of 11 Old Dec 4th, 2006, 12:14 pm
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Quote:
Originally Posted by dshealey
Is that true??? Strange if it is. The Motronic adjusts the fuel/air mixture based on feedback from the O2 sensor, so without one it is "blind". Also, it should set error codes in the Motronic when the O2 sensor input does not conform to the expected voltages. Having a bad, or worse, missing O2 sensor should screw up the fuel injection timing for mixture control either running the engine too lean or too rich.
Dave.
No cat on the Remus, but the 02 sensor is still used.

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post #9 of 11 Old Dec 4th, 2006, 3:31 pm
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Quote:
Originally Posted by ustasub
Dave.
No cat on the Remus, but the 02 sensor is still used.
OOPS! I misread. Was thinking about O2 sensors at the time, since that is the heading of the thread.

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Dandridge, TN
EX: '01 Black LT, BAT BYKE (Totaled at 110,000 miles)
IBA SS, BB, BBG, 10/10ths.
No bike now, but maybe in the future.

Last edited by dshealey; Dec 4th, 2006 at 3:55 pm.
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post #10 of 11 Old Dec 4th, 2006, 5:15 pm
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Quote:
Originally Posted by dshealey
OOPS! I misread. Was thinking about O2 sensors at the time, since that is the heading of the thread.
Me to oh well !

Pete Murray
IBA # 359 and
2014 RT
1973 R75/5
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post #11 of 11 Old Dec 8th, 2006, 4:56 pm
 
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Smile O2 sensor

I replaced the sensor on my '99 at 100k after reading the Robert Bosch site, IIRC that was the current recomendation. I was disapointed in the results as it made no discernable difference, but at least I quit worrying about it!
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