I think the filter is indifferent location in the 2 models. I have found a diagram of the fuel supply system of both, even the filters look different and also their location related to other parts within the diagrams. The problem is, the diagram does not specify the location where to find the filter.

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X5 3.0d - Space Grey , Beige Leather, Burl Walnut Trim, SatNav, Rear Camera, Sunroof, Light Package, 19" 212 Wheels, Tint, Power Fold-in Mirrors. AUDIO: Morel Elate 6 Audiophile Speaker System with Genesis Dual Mono Amp and Rockford Fosgate 3Sixty.2 DSP