This comprehensive 1984-1990 BMW 3 Series (E30) Factory Service/Repair/Workshop Manual provides in-depth information for maintaining, servicing, diagnosing, and repairing your vehicle. This manual, designed for both mechanics and DIY enthusiasts, offers detailed step-by-step instructions, alongside highly detailed exploded pictures and diagrams, to ensure you complete every job correctly and efficiently. Covering all repair procedures, this manual is the same type of information that your local BMW dealer or mechanic would use. The manual covers a wide range of topics, including: * **Maintenance and General Data:** Essential information regarding routine maintenance schedules, fluid capacities, and specifications. * **Engine:** Detailed descriptions and repair procedures for the engine, covering components such as the cylinder head, valves, pistons, and crankshaft. * **Engine Electrical Equipment:** Comprehensive coverage of starting and charging systems, ignition systems, and other electrical components related to the engine. * **Fuel System:** Detailed information on fuel injection systems, fuel lines, and fuel pumps. * **Fuel Tanks and Lines:** Guidance on inspecting, repairing, and replacing fuel tanks and lines. * **Radiator:** Procedures for inspecting, servicing, and replacing the radiator and cooling system. * **Exhaust System:** Repair and maintenance instructions for exhaust manifolds, catalytic converters, and mufflers. * **Clutch:** Detailed information on clutch operation, adjustment, and replacement. * **Manual Transmission:** Comprehensive coverage of manual transmission operation, repair, and replacement. * **Gear Shift Mechanism:** Instructions for troubleshooting and repairing the gearshift mechanism. * **Propeller Shaft:** Guidance on inspecting, servicing, and replacing the propeller shaft. * **Transfer Box:** Information on the operation and maintenance of the transfer box (for models with all-wheel drive). * **Front Axle:** Detailed descriptions and repair procedures for the front suspension components, including struts, control arms, and wheel bearings. * **Steering and Wheel Alignment:** Comprehensive instructions on steering systems, including power steering, and wheel alignment procedures. * **Rear Axle:** Detailed information on rear suspension components, including axles, suspension arms, and wheel bearings. * **Brakes:** Thorough coverage of brake systems, including disc brakes, drum brakes, and ABS (Anti-lock Braking System). * **Pedals:** Instructions for inspecting, adjusting, and repairing brake and clutch pedal systems. * **Wheels and Tires:** Guidance on selecting, installing, and maintaining wheels and tires. * **Integrated Suspension Systems:** Detailed information on the operation and maintenance of advanced suspension systems. * **Body:** Detailed procedures for repairing and maintaining the body of the vehicle, including panels, doors, and windows. * **Body Equipment:** Instructions for servicing and repairing various body-related components such as bumpers, mirrors, and windshields. * **Seats:** Information on seat adjustment, repair, and replacement. * **Hood, Sun Roof:** Guidance on operating, repairing, and replacing the hood and sunroof. * **Electrical System:** Comprehensive information on electrical systems, including wiring diagrams, fuses, and relays. * **Instruments:** Procedures for troubleshooting and repairing instrumentation, including the speedometer, tachometer, and gauges. * **Lights:** Detailed instructions for inspecting, replacing, and troubleshooting all lighting systems, including headlights, taillights, and turn signals. * **Heating and Air Conditioning:** Comprehensive coverage of the heating and air conditioning system, including the heater core, blower motor, and AC compressor. * **Radio and Special Equipment:** Information on installing and maintaining radios, CD players, and other optional equipment. * **Equipment and Accessories for Engine and Chassis:** Detailed descriptions and instructions for servicing and repairing engine and chassis-related accessories. * **Equipment and Accessories for Body:** Guidance on inspecting, repairing, and maintaining body-related accessories. This manual provides everything you need to keep your 1984-1990 BMW 3 Series (E30) in peak condition.

The BMW 3 Series (E30), produced from 1982 to 1994, is a compact executive car that marked a significant evolution for the German automaker. The E30 generation, specifically manufactured between 1984 and 1990, is highly regarded among car enthusiasts for its timeless styling, handling prowess, and enduring reliability. This generation introduced a number of innovations, including the first use of a four-wheel independent suspension on a BMW production car, which significantly improved handling and ride comfort. The E30 also boasted a wider range of engine options, catering to different performance preferences. From the powerful 2.3-liter M20 engine in the 325i to the iconic 2.5-liter M20B25 six-cylinder engine in the 325iX, the E30 offered a range of powertrain choices. The addition of the 325iX, a four-wheel drive variant, further expanded the car's capabilities, making it suitable for diverse driving conditions. The E30 3 Series also featured a variety of body styles, including the classic two-door coupé and the more practical four-door sedan. Beyond its performance and practicality, the E30 3 Series gained a reputation for its build quality and durability, solidifying its place as a classic and sought-after model. The E30's timeless design, responsive handling, and robust build have ensured its enduring popularity among enthusiasts, making it an iconic example of BMW's commitment to engineering excellence.