1,6,7,8 - Series and Mini CooperGeneral Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.
I bought my BMW with 75000 miles on it in 2001. It now has 116500 on it and I do not know if the oxygen sensor has ever been changed. The car runs fine. I get 20-21 miles per/gal on rural roads. Is this something I should replace or wait for a problem to arise? Drummer
Most of us would change them at about 60,00 miles. I did my 1988 750 after receiving a O2 prompt (did both sides). I buy from oxygensensors.com, they are OEM style and are made by Walker with 100,000 mile warranty.
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