I have no idea where the fuel tank vent valve is on the Mrs. X5M but you should be able to test it fairly easy if you know where to find it. Being in Missouri without your diagnostic tools is a nightmare. Can't imagine a lot of X5M's or S63's there

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• 2004 E53 X5 3.0 ZSP (4/04 build date) Jet Black exterior/Sand Beige interior
• 2002 E46 325i ZPP (2/02 build date) Alpine White exterior/Hell Beige interior

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