1987 Mercedes-Benz 300D Service Manual

1987 Mercedes-Benz 300D Technical Service Documentation

• Covers 1983–1987 Mercedes-Benz models including the 190D, 300D, 300SDL, 300TD, 260E, 420SEL, and 560 series with diesel and V8 engine configurations
• Original OEM publication, copyright 1998 Mitchell Repair Information Company, LLC
• Includes 23 detailed electrical diagrams, 19 system inspection tables, and 5 engine tightening sequence charts
• Delivered as a direct download the moment payment clears
• File resolution preserves exploded-view detail and electrical schematics for shop-floor use
• Accessible from your device as soon as the order is placed
• Suitable for printing individual sections for shop-floor use
• This 100-page official technical publication serves as the primary reference for engine, HVAC, and electrical system diagnostics for the 1983–1987 Mercedes-Benz 300D model range

Engine and Mechanical Coverage

This documentation details service operations for the 2.5L 5-cylinder and 3.0L 6-cylinder turbo diesel engines, providing specifications for pistons, rings, camshafts, and hydraulic valve tappets. The assembly sections document removal and installation sequences for the engine and transmission, along with internal components such as the crankshaft, connecting rod bearings, and cylinder head. Every engine-related task is supported by extensive torque specifications and timing component data, including the multi-stage angle tightening method required for cylinder head bolts. Learn more about how factory workshop documentation is structured to streamline your engine maintenance.

A/C-Heater System and Technical Specs

Complete diagnostics for the automatic climate control system are provided, detailing the operation of the electronic control unit, auxiliary coolant pump, and temperature sensors. Technical preview data includes system pressure settings of 24–34 psi (low side) and 230–275 psi (high side). Electrical specifications document sensor resistance values, such as the 10,000-ohm reading at 77°F (24°C) for the in-car temperature sensor. The text also contains comprehensive inspection tables for the heating, ventilation, and air conditioning systems, referencing uniform standards for maintenance, relay, and connector condition. Reference only — always consult a certified technician before performing service on this equipment. This official 100-page Mitchell publication provides comprehensive service, diagnostic, and technical data for the 1983–1987 Mercedes-Benz 300D, documenting engine, drivetrain, and climate control specifications across the 601, 602, and 603 engine series.