This comprehensive service repair manual provides detailed instructions for maintaining, repairing, rebuilding, refurbishing, or restoring your Mercedes 560 SEC (1985-1991). The manual offers the same level of information used by professional technicians and mechanics, encompassing all aspects of vehicle maintenance and repair. The manual guides you through a vast array of procedures, providing detailed step-by-step instructions, clear diagrams, illustrations, wiring schematics, and specifications. From routine maintenance tasks to complex repairs, this manual empowers you to confidently perform repairs and services on your 560 SEC. Key topics covered within the manual include: * **Engine & Drivetrain:** Engine oil and filter change, valve clearance adjustment, idle speed adjustment, injection timing adjustment, fuel filter replacement, air filter replacement, V-belt inspection, oxygen sensor replacement, spark plug inspection and replacement, coolant level and antifreeze protection, engine mount bolt retorquing, clutch disk wear inspection, manual and automatic transmission fluid changes, transfer case fluid change, clutch system inspection, throttle linkage lubrication, level control (ADS, ASD, 4MATIC) fluid level, axle fluid changes, ball joint inspection, wheel inspection and rotation, tire inspection and pressure correction, drive shaft flexible coupling inspection. * **Brakes & Steering:** Brake fluid level check, brake line inspection, brake pad and disk thickness inspection, parking brake cable inspection, brake fluid replacement, brake test, power steering fluid level check, steering play check, steering bolt re-tightening. * **Electrical & Body:** Fuel system condition check, exhaust system connection re-tightening, battery fluid level check, warning and indicator lamp check, water drain cleaning, engine compartment lower panel removal and installation, door hinge and lock lubrication, hydraulic top fluid level check, sunroof and soft top inspection, windshield washer fluid level check, cassette deck tone head cleaning, antenna mast cleaning, headlamp and exterior lamp inspection, windshield and headlamp wiper and washer inspection, windshield wiper blade replacement, AC refrigerant charge check, dust, active charcoal, and recirculating air filter replacement, folding side mirror lubrication, hood lubrication, safety belt inspection, backrest lock operation check, lower noise encapsulation panel removal and installation, body paint damage inspection. With this manual, you will have the knowledge and confidence to handle a wide range of repairs and maintenance tasks, ensuring your Mercedes 560 SEC remains in top condition.

The Mercedes-Benz 560 SEC, produced from 1985 to 1991, was a luxurious and powerful coupe that epitomized the brand's reputation for engineering excellence and elegant design. It was part of the W126 model series, sharing its platform with the S-Class sedans and the 560 SEL and 560 SL models. The 560 SEC was powered by a 5.6-liter naturally aspirated V8 engine producing 300 horsepower and generating a smooth, effortless driving experience. It was equipped with a four-speed automatic transmission and a multi-link independent suspension system on all four corners, providing excellent handling and ride comfort. The 560 SEC's exterior featured a timeless and elegant design with a long hood, fastback roofline, and a prominent grille. It sported a luxurious interior with plush leather upholstery, rich wood trim, and an advanced instrument panel. The 560 SEC offered a unique blend of performance and luxury, making it a popular choice among discerning drivers. The powerful engine delivered impressive acceleration and effortless passing power, while the comfortable suspension and refined interior made it an excellent choice for long-distance cruising. The 560 SEC also featured several advanced safety features for its time, including a driver's airbag and anti-lock brakes. However, in the United States, the 560 SEC was only available for a single model year, 1987, due to the luxury car tax imposed in 1987. Despite its short run, the 560 SEC remains a highly sought-after classic car, showcasing the timeless appeal and engineering prowess of Mercedes-Benz during that era.