Unlock the secrets of your BMW 633CSI or 635CSI, including the coveted M6, with this comprehensive Service Repair Workshop Manual covering models from 1983 to 1989. This manual is your ultimate guide to understanding and maintaining your vehicle, providing the same level of detail and expertise used by professional mechanics.

Dive deep into every aspect of your BMW, from routine maintenance and servicing to intricate engine and transmission repairs. The manual offers detailed instructions for tackling a wide range of topics, including cooling systems, fuel and exhaust systems, ignition and electrical components, brakes and brake assemblies, wheels and tires, steering and suspension, frame and bodywork, and much more.

Visual learning is key with high-quality pictures and diagrams accompanying each section, making complex procedures easy to follow. Troubleshooting and fault-finding sections help you pinpoint and address any issues efficiently. This manual is a valuable resource for both experienced mechanics and DIY enthusiasts alike, empowering you to maintain and repair your classic BMW with confidence.

The BMW 6 Series (E24) is a grand tourer produced by BMW from 1976 to 1989. It was the successor to the BMW 3.0 CSL and was offered in a variety of engine and trim levels, including the 633CSI, 635CSI, and the high-performance M6. The 633CSI was powered by a 3.2-liter inline-six engine, while the 635CSI featured a larger 3.5-liter engine. Both models shared a sleek and elegant design, with a long hood, flowing lines, and a distinctive fastback profile. The M6, on the other hand, was a more extreme version of the 635CSI, equipped with a powerful 3.5-liter inline-six engine tuned for high-performance and a unique set of bodywork modifications. The E24 6 Series was renowned for its luxurious interior, comfortable ride, and impressive handling characteristics. It was a popular choice for those seeking a blend of style, performance, and practicality.

The 1983-1989 model years saw several updates to the 6 Series, including new engine options, interior improvements, and minor cosmetic changes. The 633CSI received a 3.4-liter inline-six engine in 1983, while the 635CSI continued with the 3.5-liter unit. The M6 remained the top-of-the-line model, powered by the same 3.5-liter engine but tuned for even more power. Notably, these years also saw the introduction of the catalytic converter for emissions compliance. The 6 Series remained a popular and desirable car throughout the 1980s, renowned for its smooth performance, timeless design, and luxurious features. The E24 6 Series is now a highly sought-after classic car, appreciated for its distinctive style, driving experience, and historical significance in BMW's model lineup.