the smallest hole or excessive stretch in the diaphragm or membrane can cause rough idle
Idler Arm Bushing Kit for 600SL (1993)
550i (2008-2013)
Trust our Coolant Hose for peak performance and engine longevity
combine our Rennsport Muffler with GT3 headers featuring catalytic converters or Fabspeed headers with HJS German EPA-approved catalytic converters
BMW Crankcase Vent Hose Heating Element with O-Ring | 2006-2013 Manufacturer:Genuine BMW the smallest hole or excessiveCrankcase Vent Hose Heating Element with O Ring for 530i (2006 2007), 525i (2006 2007), 530xi (2006 2007), 525xi (2006 2007), 325xi (2006), 330xi (2006), Z4 (2006 2011), 328i (2007 2013), 328xi (2007 2008), X3 (2007 2012), X5 (2007 2010), 528i (2008 2011), 528xi (2008), 128i (2008 2013), 528i xDrive (2009 2010), 328i xDrive (2009 2013), 330i (2006), 325i (2006)