This service manual covers the Mercedes 140 Series vehicles produced between the 1981 and 1993 model years. These vehicles are renowned for their exceptional engineering, robust construction, and luxurious appointments, representing a pinnacle of automotive design and performance for their era. This comprehensive guide is designed to assist owners and technicians in understanding and maintaining the sophisticated systems that define the 140 Series, ensuring its continued reliability and operational excellence.

The purpose of this manual is to provide detailed instructions and specifications for the maintenance, diagnosis, and repair of your Mercedes 140 Series. It includes in-depth information on all major vehicle systems, from the engine and transmission to the electrical components and bodywork. By following the procedures outlined within these pages, you can effectively address common issues, perform routine servicing, and ensure your vehicle remains in optimal condition, preserving its value and driving pleasure for years to come.