The BMW E46 is the fourth generation of the 3 Series compact executive cars produced by BMW, produced from 1998 when it succeeded the BMW E36 until it was replaced by the BMW E90 in 2006. The E46 was released in 1998 to worldwide markets (excluding the United States) in the sedan body style. In 1999, a coupé and touring body style became available to all markets, and the sedan was released in the United States. A convertible and hatchback body style was released in 2000, the latter only for Europe and Australia. The E46 experienced enormous success in all markets and was widely considered the performance benchmark of its class.The record selling year for the E46 chassis was 2002, when 561,249 vehicles were sold worldwide. BMW M GmbH produced a high performance variant of the E46 chassis, designated the M3. This version had a larger, more powerful engine, sportier suspension, a limited slip differential, and various aesthetic modifications. The M3 was released in 2001 and was available only in the coupé and convertible body style. It was offered with two transmissions; a standard 6-speed manual, or an optional sequential manual gearbox.
The following document is an electrical troubleshooting manual for 1992 BMW 320i Convertible. It consists of electrical wiring diagram necessary to troubleshoot the BMW 320i. The content of the electrical troubleshooting manual are the index, how to use the manual, wire size conversion chart, symbols, systematic troubleshooting, connector views, power distribution box, fuse data, component location charts, component location views, and the splice location views. The other electrical system discussed here also are the power distribution, charge, start, injection electronics, supplemental restraint system, brake warning system, antilock braking system, power mirrors, central locking, power windows, seats, electromechanical convertible top, body electrical, ignition key warning, wiper/washer, instrument cluster, active check control, light switch details, headlights/foglights, turn/hazard lights, park/tail/front marker lights, rear marker license/trunk lights, back up lights, stop lights, interior lights, heating and air conditioning, A/C temperature control, A/C temperature blower, A/C air delivery control, A/C compressor control, auxiliary fan, radio/antenna, cruise control, on-board computer. For more details about the PDF document, download it from the following source :
BMW 320i CONVERTIBLE ELECTRICAL WIRING DIAGRAM