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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 01-16-2010, 05:25 AM   #1 (permalink)
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Exclamation O2 sensors

Dear friends,

i discovered that there are no O2 sensors attached to my car.
is it normal to come without them from the factory??? also no holes for them on the exhaust.!!!! what it will cause for my car ??????!!!!!

the car is 2003 E39 520i


thanxxx
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Old 01-16-2010, 05:42 AM   #2 (permalink)
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That will be because they are on the exhaust manifold #2 x2 in the diagram:

RealOEM.com BMW E39 520i Lambda Probe Fixings
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Old 01-16-2010, 09:37 AM   #3 (permalink)
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Dear Marti

thanx, but even there i didnt find any sensor.
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Old 01-16-2010, 09:54 AM   #4 (permalink)
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Eh! whats the last 7 digits of your VIN #.
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Old 01-16-2010, 10:27 AM   #5 (permalink)
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where i can find it?? and what it can help for???
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Old 01-16-2010, 10:36 AM   #6 (permalink)
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You can find it on the suspension tower under the bonnet/hood or at the bottom of you windscreen or on you vehicle registration form, what you do with it is go to the site below and key in the last 7 digits thats your car and it will show all the parts fitted to your car.

RealOEM.com Online BMW Parts Catalog
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Old 01-16-2010, 10:45 AM   #7 (permalink)
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i'll check the number
but is it related to the country where i live ????

and i noticed that strong smell comes from the exhaust and i think its the cats, some one advised me to remove them so is there any damage for the engine if i did it???
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Old 01-16-2010, 11:09 AM   #8 (permalink)
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The VIN will show all that's fitted to that car, whether it be in Syria or the North Pole, removing the cats wont affect the engine, but if your country has smog tests or emissions tests for cars it will FAIL without cats fitted..
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Old 01-16-2010, 11:12 AM   #9 (permalink)
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Thanx Marti for help

best wishes
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