Mass Air Flow Sensor / Meter 1993-1998 BMW 540i, 740i, 840Ci In order to avoid return hassle and save yours and our time, you must cross-check indicated reference part numbers against those found on your old unit. Do not rely on vehicles compatibility list, which is presented for the reference purpose and shouldn't be your guide to determine compatibility. If you are unsure, you may call local dealership (auto parts dept.) to obtain correct part numbers or ask your mechanic. If you would like us to help you, please contact us and provide your vehicle's detailed info such as: Make/Model/Year/Engine/Full VIN# and we will do our best to find compatibility. PART REFERENCE NUMBERS: BMW: BOSCH: 13621702078 13621403123 13621468625 0280217800 0 280 217 800 BECK/ARNLEY: CARDONE: 1581073 7410115 74-10115 *Please cross-check indicated OEM reference codes against those found on your current unit. You may call local dealership (auto parts dept.) to obtain correct numbers. COMPATIBLE VEHICLES: * Models presented for reference purpose only! MAKE: MODEL: YEAR: BMW 540I (1994 - 1998) BMW 740I (1993 - 1998) BMW 740IL (1993 - 1998) BMW 840CI (1994 - 1997)