This manual provides comprehensive service and repair information for the Deutz BFM 1012 and BFM 1013 engine series. Designed for a wide range of applications, these engines are known for their robust construction and reliable performance. This guide is essential for anyone seeking to maintain the operational integrity and longevity of their Deutz engines, ensuring they continue to meet demanding requirements. The scope of this manual encompasses all critical aspects of engine maintenance and repair. It details general maintenance procedures, troubleshooting common issues, and in-depth engine service and repair. Additionally, it covers essential systems such as the transmission, brake system, electrical system, suspension, cooling system, fuel injection, and emission controls. This resource is invaluable for owners, technicians, and mechanics aiming to perform all necessary upkeep and repairs efficiently and effectively.