[INDUSTRY LEADER] - As an original equipment global leader in mass air flow technology, all Bosch Mass Air Flow (MAF) sensors ensure low levels of harmful emissions with greater fuel efficiency and improved engine performance [OPTIMAL PERFORMANCE] - OE technology provides the correct function and calibration to ensure trouble-free operation and emission compliance while providing up to 20 percent better fuel consumption [SUPERIOR DESIGN] - Bosch OE MAF sensors feature a patented design that increases robustness against water and particulate damage, reduces sensor drift, and lowers pressure drop [PRECISION CALIBRATION] - 100% new sensor and housing are calibrated and sold together (select part numbers only - housing will be shown in photos if included), ensuring precise sensor readings and optimal engine performance [TROUBLE FREE INSTALLATION] - OE identical connector ports and attachment points ensure an exact fit and a trouble free installation process Compatible with select vehicles (Note: engine affects fitment - verify specific vehicle fitment details with fit checker above): MERCEDES-BENZ: 2001-05 C240, 1998-00 C280, 2002-04 C32 AMG, 2001-05 C320, 1998-05 CLK320, 1998-03,2005 E320 Compatible with (continued): MERCEDES-BENZ: 1998-03 ML320, 2003-05 ML350, 2006 S350, 2002-04 SLK32 AMG, 2001-04 SLK320