This comprehensive Mercedes-Benz 300SD w126 Factory Workshop Service Repair Manual is your ultimate guide to maintaining and repairing your 1981-1985 model. This manual, identical to the one used by Mercedes-Benz dealership technicians, provides detailed instructions for every imaginable service and repair. From routine oil changes to complex transmission overhauls, this manual covers it all. Explore in-depth sections on engine operation, braking systems, suspension components, seating adjustments, exterior trim, and much more. Whether you're a seasoned mechanic or a dedicated DIY enthusiast, this manual empowers you to confidently tackle any repair or maintenance task on your Mercedes-Benz 300SD.

The 1981-1985 Mercedes-Benz 300SD w126, a true icon of automotive engineering, represented the pinnacle of luxury and performance in its time. This four-door sedan, part of the W126 model series, was renowned for its robust construction, sophisticated features, and unparalleled longevity. Powering the 300SD was a 3.0-liter, five-cylinder, naturally aspirated diesel engine, producing a respectable 123 horsepower and a substantial 162 lb-ft of torque. The engine was paired with a smooth-shifting four-speed automatic transmission, ensuring effortless acceleration and efficient fuel consumption. The 300SD was a practical and frugal choice, delivering impressive fuel economy without compromising on comfort or performance. Beyond its powertrain, the 300SD boasted a range of luxurious and innovative features. The spacious interior offered sumptuous leather upholstery, plush carpeting, and ample legroom for passengers. Advanced comfort amenities included automatic climate control, power windows and locks, and an optional sunroof. The 300SD's suspension, a sophisticated multi-link system, delivered a smooth and controlled ride, even on rough roads. The vehicle also featured power-assisted steering and disc brakes on all four wheels, ensuring precise handling and confident braking. The 300SD's exceptional build quality and meticulous attention to detail translated into a car that could withstand the test of time. It was a testament to German engineering at its finest, offering a combination of luxury, durability, and performance that continues to be admired today.