Quote:
Originally Posted by Bmwtvboy
Don't change O2 unless you get code or other issue.
If your doing all this front engine replacement, go ahead and do your Dvanos seals if they haven't been replaced.
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Thank you... Two questions.
Why should I better wait until I get a code to replace the O2 Sensors?
On average at what mileage the Vanos has to be rebuilt?
Thanks !!