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Old 06-11-2012, 01:55 PM   #15
combo9011
Registered User
 
Join Date: Jun 2012
Location: winston salem NC 27106
Posts: 8
My Ride: 08BMW 528XI
Hello Sdbimmer !! Thank u fo the diagrams!! I have the same problem, now I can see clearly which one i need but most likely I might have to buy both . Is it true that both top 2 sensors are the same . One out of two dealers told me that the pre cat sensors are the same ..well to my 08/528xi ..? the other dealer told me differently so I took non of their advice !!
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