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      08-30-2010, 06:49 AM   #5
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Drives: BMW F11 535i Touring
Join Date: Mar 2007
Location: Scotland, Highland Region

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The extent of swirl flap issues is still not clear, even for late model M series diesel engines. The N series have completely different manifolds.

Knowing the failure can trash the engine, not something to ignore and an additional reason why many of us have extended warranties even on the E9* models, as failures are now being reported on the revised spindle design and even the enclosed flap variations.

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