This comprehensive Mercedes 300SD Turbo Service Repair Manual covers models from 1981 to 1985, providing detailed information and instructions to help you diagnose and repair a wide range of issues. This manual serves as an invaluable resource for mechanics and DIY enthusiasts alike, offering step-by-step guidance on everything from routine maintenance to complex repairs. Within its pages, you'll find extensive information on inspecting, maintaining, and repairing various components of your Mercedes 300SD Turbo. This includes detailed instructions on: * **Engine Maintenance:** Learn how to perform oil and filter changes, adjust valve clearance, check injection timing, replace fuel filters, clean air filters, and more. * **Transmission & Drivetrain:** The manual covers procedures for fluid changes, level checks, and adjustments for manual and automatic transmissions, transfer cases, and the clutch system. * **Suspension & Steering:** Find guidance on inspecting and adjusting the self-leveling suspension, checking front and rear axle fluid levels, inspecting ball joints, and adjusting the rear axle mount. * **Brakes & Wheels:** Learn how to inspect and replace brake pads and rotors, adjust the parking brake, bleed the brake system, and inspect tires and wheels. * **Electrical Systems:** The manual includes information on checking battery fluid levels, inspecting warning lamps, and cleaning water drains. * **Body & Interior:** Learn how to lubricate door hinges and locks, inspect and clean the sunroof and soft top, check windshield washer fluid levels, and replace air filters. * **Climate Control:** The manual provides instructions for checking and replacing AC refrigerant, replacing dust and active charcoal filters, and lubricating folding side mirrors. * **Safety Features:** Find information on inspecting and adjusting safety belts and checking the operation of backrest locks. This manual offers a wealth of knowledge to help you keep your Mercedes 300SD Turbo running smoothly. Whether you're a seasoned mechanic or a dedicated DIY enthusiast, this guide provides the information you need to perform repairs with confidence.

The Mercedes-Benz 300SD Turbo, produced from 1981 to 1985, was a groundbreaking model in the automotive world, marking a pivotal moment in the evolution of diesel-powered luxury cars. This sedan, part of the W126 series, showcased the Mercedes-Benz commitment to engineering excellence and performance. It was powered by a potent 3.0-liter inline-five-cylinder diesel engine, equipped with a Garrett T03 turbocharger, making it the first Mercedes-Benz production car to feature a turbocharged diesel engine. The 300SD Turbo boasted impressive power and fuel efficiency for its time. The turbocharger significantly enhanced the engine's output, delivering 125 horsepower and 177 lb-ft of torque, while maintaining a remarkable fuel economy, exceeding 25 miles per gallon. The 300SD Turbo was renowned for its smooth and quiet operation, setting a new standard for diesel-powered luxury cars. It was also meticulously engineered with premium features including a plush interior, spacious cabin, and advanced suspension system, making it a comfortable and refined driving experience. Its robust design, incorporating a durable body and a highly sophisticated engine, contributed to the 300SD Turbo's reputation for reliability and longevity. Today, the 300SD Turbo remains a highly sought-after classic, admired for its historical significance, iconic design, and exceptional performance.