Question about 1998 BMW 5 Series

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1998 bmw 528I runs ruff after starting,smooths out after 30 sec.

Also some smoke from exhust when ruff.

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If you let it warm up first it should not run ruff .Its the car staying in low gear to warm up the catalytic converter faster so that it can cut the amount of pollution that the is car producing .For the clean-air laws.

Posted on Dec 20, 2008

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