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Old 07-14-2011, 05:35 PM   #1
Bigjohn88
1st Gear Newbie
 
Join Date: May 2011
Location: Toronto
Posts: 21
O2 sensor

My e39 528! Burn a lots of gas 14L/100km on city driving, with 200000km do I need to change the O2 sensor? Will I save some gas by replace a new one?

Thanks!
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Old 07-14-2011, 10:24 PM   #2
MLue1
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Location: Markham
Posts: 451
I say go for it, as well make sure you eliminate the air leaks around the intake and make sure you don't have a lazy caliper on any of the brakes, use an infred temp gun to check to make sure they aren't running too hot.



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Originally Posted by Bigjohn88 View Post
My e39 528! Burn a lots of gas 14L/100km on city driving, with 200000km do I need to change the O2 sensor? Will I save some gas by replace a new one?

Thanks!
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'99 E39 540iT
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Old 07-14-2011, 10:49 PM   #3
Bigjohn88
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Thanks
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