This comprehensive Workshop Repair Service Manual provides detailed technical information for the BMW 635CSI model years 1983 through 1989. The manual is designed to assist mechanics and technicians in understanding and performing a wide range of maintenance and repair procedures. It covers everything from basic engine and transmission work to more complex electrical and bodywork repairs. With step-by-step instructions, clear diagrams, and comprehensive troubleshooting guides, this manual is an indispensable resource for anyone working on a BMW 635CSI. It features detailed information on engine, transmission, suspension, brakes, electrical system, and bodywork. The manual includes specifications, wiring diagrams, torque values, and other important technical data.

The BMW 635CSi, produced from 1983 to 1989, was a high-performance grand touring coupe that embodied the spirit of the German automaker's legendary engineering prowess. Built on the E24 platform, the 635CSi was a successor to the iconic 633CSi, boasting a powerful and refined nature that set it apart as a true driver's car. Under the hood resided a potent 3.5-liter, naturally aspirated inline-six engine, codenamed M88, which delivered an impressive 218 horsepower and 214 lb-ft of torque. This engine, originally developed for the M1 supercar, was renowned for its smooth operation, linear power delivery, and an intoxicating soundtrack, making the 635CSi a joy to drive on both winding roads and open highways. Paired with a five-speed manual or four-speed automatic transmission, the 635CSi offered a thrilling driving experience that was both engaging and refined. Beyond its powerful engine, the 635CSi was a testament to BMW's commitment to luxury and refinement. It featured a spacious and well-appointed interior with plush leather seats, wood trim, and high-quality materials throughout. The coupe's sleek and elegant styling, featuring a long hood, a distinctive shark nose, and a fastback roofline, continued to turn heads even decades after its introduction. However, the 635CSi was more than just a stylish cruiser; it was engineered for performance. With a well-balanced chassis, precise steering, and responsive handling, the 635CSi offered a rewarding driving experience that made it a favorite among enthusiasts. Despite its age, the BMW 635CSi remains a desirable and sought-after classic car, appreciated for its blend of performance, luxury, and timeless design.