2000-2004 Land Rover Discovery Mass Air Flow Sensor Meter MAF # 0280217532 ERR7171 Brand New Replacement Mass Air Flow Sensor ( MAF ) Land Rover OEM Ref. # ERR7171 Bosch Ref.#:0280217532 This MAF has a 5 pin connector Compatiblity: 1999 Land Rover Discovery II & 2000-2004 Land Rover Discovery 4.0L