Many people will have heard of the dreaded Swirl Flap problems that afflict many BMW diesel models, however to date I have not been able to find any evidence that they were ever fitted to the X5.
It seems that the common models are the E60 5 Series and the E46 3 Series.
If you are in any doubt, the easiest way to find out is to remove your engine cover and inspect the inlet manifold, on vehicles with Swirl Flaps you should be able to see evidence of an actuator rod that runs the length of the manifold, there should also be an actuator at the rear of the manifold - this will be either mechanical (vacuum operated) or controlled by an electronic actuator.
This simple check will at the very least put your mind at rest that your vehicle does not have the dreaded Swirl Flaps, it will also save you unnecessary expense of purchasing blanks and more importantly removing the inlet manifold.
BMW Swirl Flaps and the X5
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26 February 2013
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