2003 BMW 530i Bsnk2 o2 sensor

Asked by Jul 20, 2016 at 10:16 AM about the 2003 BMW 5 Series

Question type: Maintenance & Repair

Took my car to garage his computer said
bank 2 catalytic converter he said to
replace them ,, should I try replacing the
sensors first my car has 160000 miles I
bought it used for you guys that know all
about the BMW what would you do ?
Please help me decide ,, your opinion
matters !

1 Answer

If it's a P0420/P0430 code means that your catalytic converter is not doing its job, and replacing the O2 sensor will not usually help. A repair shop should be able to test if the O2 sensors are functioning properly.

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