BMW Repair Questions? Ask a Mechanic for Answers ASAP
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Can I have the last 7 digits of your vin?
thanks one moment please
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These codes are generally caused by a bad cat, or possibly bad o2s. Also a clog could do it as well.
However, they can also be caused by an exhaust leak if you are looking for a possibility for both at once.
I would check for an exhaust leak. If none is found, a proper real time diagnostic on a sophisticated diagnostic computer that can read live data would be advised, as trying to solve this using simple p codes will be very difficult.
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