This workshop repair manual covers the Deutz Agrotron 105 MK3, a tractor model known for its robust engineering and reliability, building on Deutz's long heritage in agricultural machinery. The Agrotron MK3 series represents an advancement in tractor technology, emphasizing performance and efficiency. This manual is designed to provide comprehensive support for owners and technicians working with this versatile agricultural machine. This manual serves as an exhaustive resource for the service, maintenance, troubleshooting, and repair of all Agrotron 105 MK3 models, engines, and transmission types. It includes detailed procedures for all major systems, from the engine and drivetrain to the hydraulic and electrical systems, supported by hundreds of diagrams and illustrations. The step-by-step instructions and diagnostic information are presented at a professional technician level, enabling users to perform complex tasks and ensure the optimal performance and longevity of their Deutz tractor.