Mass Air Flow Sensor Meter MAF Compatible FOR 1996-2001 BMW 323iS, 328I, M3, Z3 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: OEM: SIEMENS/VDO: 13621703650 13621703275 1703275 1703650 5WK9600 5WK9600Z BECK/ARNLEY: CARDONE: 1580946 7410043 74-10043 DORMAN: HELLA: 917986 8ET009142061 8ET009142-061 CAMBIARE: VE700179 *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 323I (1998 - 1999) BMW 323IS (1998 - 1999) BMW 328I (1996 - 1999) BMW 328IS (1996 - 1999) BMW 528I (1997 - 1998) BMW M3 (1996 - 1999) BMW Z3 (1997 - 2001)