Fuel Tank Filler Cap, Gas Cap Compatible With E39 E46 E60 E90-16117222391 About this item ?High Performance?? Long Service Life, Fuel Filler Cap Is Made Of Reinforced ABS Plastic And High-Quality Sealing Rubber,It's More Resistant To Cold And Heat ,Can Adapt To Harsh Weather And Environment. All Fuel Filler Cap Are Tested Before Leaving The Factory To Ensure That The Product Quality Meets The Standards.Provides A Tight Seal To Keep Your Vehicle's Fuel Tank Closed, Safety Your Vehicle's Occupants, Fuel Economy And Reduce Vapor Emissions? ?FIT FOR? ? Gas Cap/ Fuel Cap Compatible with 2002-2018 Mini Cooper,2008-2013 128i,135i,2014-2016 228i,2017-2018 230i, 2013-2018 320i,2001-2006 325Ci 325i 325xi,2007-2016 328i,2014-2016 328i GT xDrive,2009-2016 328i xDrive,2007-2008 328xi,2001-2006 330Ci 330xi,2017-2018 330i,2007-2015 335i,2001-2007 525i 530i,2008-2016 528i 535i,2017-2018 530i,2006-2016 550i, 2011-2015 740Li 740i,2006-2015 750Li,2010-2015 750Li xDrive, 2006-2018 750i,2010-2018 750i xDrive,2001-2018 M3,2013-2018 X1,2004-2017 X3,2007-2018 X5,2009-2016 Z4 More ?Replacement Part Number?? 16117222391, 10844, 31848. Before Ordering, Please Confirm Whether The Accessories Are Suitable For Your Vehicle To Confirm Compatibility?Most Fuel Caps Are Sealed By Turning Them Until You Hear A Clicking Sound? ?Product Advantages?? Over Time, The Car's Fuel Filler Cap Will Loosen And Fail, Which Will Increase Fuel Vapor Emissions And May Cause Your Inspection Engine Light CEL To Turn On. Our Fuel Filler Cap Is Designed And Manufactured According To OEM To Meet Or Exceed All Original Equipment Performance Fuel Tank Caps. Provide A Tight Seal To Keep The Vehicle Fuel Tank Closed, Protect The Safety Of Vehicle Occupants, Save Fuel And Reduce Steam Emissions. The Price Is Only A Small Part Of The Dealer