This comprehensive service and repair manual for the 1978 BMW 7-series E23 covers all models and provides detailed instructions for all repairs. It contains everything you need to maintain, service, diagnose and repair your vehicle.

The manual includes step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications for all aspects of your BMW. You'll find detailed information on maintenance, engine, control system, mechanical components, fuel service specifications, emission control, intake exhaust cooling, lubrication, ignition, starting, charging, automatic and manual transmission, clutch, transfer case, propeller shaft, driveshaft, differential, axle, suspension, tires, wheels, brake control, parking brake, steering column, power steering, air conditioning, supplemental restraint system, seat belts, engine immobilizer, cruise control, wipers, washers, door locks, meter and audio/visual system, horn, windshield/glass mirrors, instrument panel, seats, engine hood/door, exterior and interior, electrical systems, multiplex/can communication, and much more.

This manual is an invaluable resource for both experienced mechanics and DIY enthusiasts. It allows you to tackle repairs with confidence and save money on expensive repair bills.

The BMW 7-Series E23, launched in 1977, marked a new era for BMW, solidifying its position as a manufacturer of luxury automobiles. This first generation of the 7-Series, produced until 1986, pushed the boundaries of comfort and performance, introducing features that would become synonymous with the BMW brand. The E23's elegant design, penned by Paul Bracq, showcased a more refined and sophisticated aesthetic compared to its predecessors. The car's long wheelbase and generous proportions created a spacious and luxurious interior, adorned with high-quality materials and a focus on driver ergonomics. Its powertrain options ranged from the smooth and efficient 3.0-liter inline-six to the powerful 3.2-liter and 3.5-liter inline-sixes, offering a blend of performance and efficiency. For those seeking even greater performance, BMW offered the M735i, equipped with a 3.5-liter engine tuned for greater power and torque.

Beyond its impressive performance and luxurious features, the E23 7-Series introduced innovative safety technologies. It was one of the first cars to offer a driver's airbag, and its advanced braking system with ABS (Anti-lock Braking System) provided enhanced stopping power and stability. The E23's impressive list of standard and optional features included automatic climate control, electric windows and mirrors, a central locking system, and a powerful sound system. The E23, despite its age, remains a highly sought-after classic car, appreciated for its timeless design, luxurious comfort, and robust engineering. The E23's success paved the way for the subsequent generations of the 7-Series, solidifying its place as a benchmark for luxury sedans and cementing BMW's position as a leader in the automotive industry.