The BMW 525TD and 525TDS E39 Repair Service Manual for models from 1997 to 2002 is an essential resource for car owners and independent automotive service professionals. This comprehensive manual provides the same technical specifications and repair procedures used by authorized BMW dealerships. It covers every aspect of the vehicle, from basic maintenance to complex engine overhauls. The manual begins with general information about the BMW 525TD and 525TDS E39, including safety precautions, vehicle identification, and service intervals. It then delves into detailed sections covering: **Engine Service and Overhauling:** This section includes information on engine fundamentals, maintenance schedules, troubleshooting, engine removal and installation, cylinder head removal and installation, valve train adjustments, piston and connecting rod replacement, and much more. **Transmission:** The manual provides comprehensive coverage of the automatic and manual transmissions, including troubleshooting, removal and installation procedures, and component replacement. **Chassis:** This section covers all aspects of the vehicle's chassis, including suspension, steering, brakes, and axles. It includes detailed diagrams and instructions for repairs and adjustments. **Body:** The body section covers parts such as doors, windows, and the roof. It explains how to repair and replace these components. **Wiring:** The manual provides detailed wiring diagrams and explanations of the electrical system, making it easy to troubleshoot electrical problems. **Fuel System:** This section covers the fuel system in detail, including the fuel pump, injectors, and fuel lines. It includes troubleshooting tips for common fuel system issues. **Emission Control:** The manual provides information on the vehicle's emission control system, including the catalytic converter, oxygen sensors, and exhaust system. **Induction:** The induction system is covered in detail, including the air intake, throttle body, and air filter. **Mechanical:** This section covers the mechanical systems of the vehicle, including the cooling system, lubrication system, and the exhaust system. **Control System:** The manual provides information on the vehicle's electronic control systems, including the engine control unit (ECU), ABS system, and other electronic components. **Transmission and Differentials:** This section covers the transmission, differential, and drivetrain components including troubleshooting, maintenance, and repair procedures. **Troubleshooting and Diagnostics:** The manual includes detailed troubleshooting guides for identifying and resolving a wide range of problems. **Steering and Suspension:** This section covers the steering and suspension systems, including the steering wheel, steering column, suspension components, and shock absorbers. **Brakes:** The manual covers all aspects of the braking system, including the brake calipers, brake pads, rotors, and ABS system. **ABS:** The manual provides detailed information on the anti-lock braking system (ABS). **Full Specifications and Torque Settings:** The manual includes a comprehensive list of technical specifications, torque settings, and other important information. **Service Work:** The manual details various service procedures, including fluid changes, filter replacements, and other common maintenance tasks. This manual provides a wealth of information that helps you understand and maintain your BMW 525TD or 525TDS E39. With its detailed instructions and diagrams, you can confidently tackle a wide range of repairs and maintenance tasks.

The BMW 525TD and 525TDS, part of the E39 generation of the 5 Series, were diesel-powered executive sedans produced by BMW from 1997 to 2002. These models were known for their refined driving experience, combining the characteristic BMW handling dynamics with the fuel efficiency and torque of a diesel engine. The 525TD was equipped with a 2.5-liter naturally aspirated diesel engine, producing 143 horsepower and a substantial 258 Nm of torque. The 525TDS, on the other hand, featured a turbocharged version of the same engine, upping the power output to 163 horsepower and 320 Nm of torque. This provided a significant performance boost, making the 525TDS a more potent and engaging driving experience. Both models offered a choice of 5-speed manual or 5-speed automatic transmissions, ensuring a smooth and efficient power delivery. The E39 generation of the 5 Series was a significant step forward for BMW, introducing a number of innovative features and design elements. These included an advanced suspension system with independent multi-link rear suspension, a well-appointed and spacious interior with high-quality materials, and a comprehensive suite of safety features. The 525TD and 525TDS were particularly popular among discerning drivers who valued fuel efficiency and practicality without sacrificing performance and luxury. While these models are no longer in production, they remain highly sought after by enthusiasts who appreciate their classic design, reliable performance, and enduring appeal. Their distinct roar and impressive torque delivery continue to captivate drivers, making them a memorable and desirable choice in the used car market.