Vehicle Segment:
Luxury/Executive Mid-size Coupe
Competitors:
BMW E9 Coupe, Audi 100 Coupe S
Design Philosophy:
German engineering, build quality, and understated elegance typical of Mercedes-Benz
Manual Value Proposition:
Inexpensive way to keep the vehicle working properly by providing comprehensive repair information.
Engine Service Repair:
Comprehensive engine diagnosis, overhaul, and repair.
Transmission Service Repair:
Coverage for manual and automatic transmission service, repair, and overhaul.
Brake System:
Detailed procedures for brake system maintenance, repair, and adjustment.
Electrical System:
In-depth diagnostics and repair for all electrical components and circuits.
Wiring Diagrams:
Detailed and integrated wiring diagrams for troubleshooting the electrical system.
Suspension:
Repair and maintenance of suspension components, alignment, and ride height.
Steering:
Service and repair procedures for the steering system, including power steering.
Cooling System:
Maintenance and repair of the radiator, cooling fans, thermostat, and coolant passages.
Fuel Injection:
Specific coverage for the Bosch D-Jetronic fuel injection system.
Fuel System:
Service and repair of fuel pumps, lines, tanks, and associated components.
Emission System:
Information pertaining to emission control systems of the era.
Heater Air Conditional:
Service and repair of the HVAC system, including heating and ventilation.
Engine Control System:
Diagnostics and troubleshooting for engine management electronics.
Chassis Body:
Bodywork repair, structural integrity, and chassis components.
Restraint System:
Information on seat belts and early passive safety features.
Interior:
Service and repair procedures for interior trim and components.
Differential Drive:
Maintenance and repair of the rear axle differential and drive components.
Axle:
Service procedures for front and rear axles, including bearings and seals.
General Maintenance:
Routine maintenance procedures and schedules.
Troubleshooting:
Systematic troubleshooting guides for common and complex issues.
Periodic Lubrication:
Detailed lubrication points and recommended service intervals.
Repair Procedures:
Step-by-step instructions for complete disassembly and reassembly of major components.
Diagnostic Procedures:
Methods for identifying and resolving vehicle faults, particularly for electrical systems.
Tune Up Procedures:
Guidance on engine tuning for optimal performance and emissions.
Electrical Troubleshooting:
Combined troubleshooting and electrical service procedures with detailed wiring diagrams.
Depth:
Full factory service repair manual, suitable for DIYers and experienced mechanics.
Detail Level:
Hundreds of photos and illustrations, detailed substeps, notes, cautions, and warnings.
Oil Change Interval:
Typically every 3,000-5,000 miles or 6-12 months, depending on driving conditions (refer to manual for exact specifications).
Tune Up Interval:
Recommended annually or every 10,000-15,000 miles (refer to manual).
Engine Oil:
Refer to manual for viscosity grade (e.g., 10W-40 or 20W-50 depending on climate) and API service classification.
Coolant:
Ethylene glycol-based antifreeze/coolant mixture.
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Transmission Fluid Auto:
Dexron-II or equivalent automatic transmission fluid (ATF).
Common Wear Items:
Fuel injection system components (fuel accumulators, pressure regulators), ignition system components, exhaust system, suspension bushings, and potential rust in common Mercedes-Benz areas.
Electrical Gremlins:
Age-related degradation of wiring insulation and connectors can lead to intermittent electrical faults.
