Target Audience:
DIY Enthusiasts, Independent Workshops, Owners seeking detailed information
Value Proposition:
Cost savings through DIY repairs, comprehensive technical resource
Comprehensiveness:
Covers all workshop procedures, electrical diagrams, technical data, spare parts illustrations
Ease Of Use:
Easy to follow, step-by-step instructions for any skill level
Primary Coverage:
Workshop Service and Repair
Secondary Coverage:
Maintenance, Diagnostics, Electrical Schematics, Technical Data, Spare Parts Illustrations
Estimated Page Count:
Likely 1000+ pages (typical for full workshop manuals)
Type:
Workshop Service Repair Manual
Language:
English (Assumed based on common availability)
Engine:
Detailed overhauls, diagnostics, component repair (e.g., M103, M110, M116, M117 engines)
Ignition Injection System:
K-Jetronic, KE-Jetronic, Electronic Ignition Systems (e.g., EZL/EIS)
Clutch:
Hydraulic clutch operation and repair
Gearbox:
Manual and Automatic Transmission (e.g., 722.3, 722.4, 722.5) overhaul and repair
Suspension System:
Front and Rear Suspension, Struts, Bushings, Ball Joints, Steering Linkages
Wheels:
Wheel bearings, tire specifications, bolt patterns
Braking System:
Hydraulic system, ABS (Anti-lock Braking System), Disc Brake Service, Parking Brake
Control Driving Instructions:
Likely refers to vehicle operation and basic troubleshooting
Air Temp Control System:
Climate Control (ECC - Electronic Climate Control), HVAC System Service
Electrical System:
Comprehensive wiring diagrams, component testing, diagnostics, fuse/relay information
Bodywork:
Body panel removal/installation, glass replacement, trim details
Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid checks, belt replacement
Repair:
Engine rebuilds, transmission overhauls, brake caliper service, suspension component replacement
Diagnostics:
Troubleshooting guides for common issues, diagnostic procedures for engine and electrical systems
Installation:
Component replacement and installation instructions
Depth:
Extremely Detailed - from basic to complete engine/transmission rebuilds
Diagrams:
Step-by-step diagrams, exploded views, electrical schematics
Data Provided:
Torque settings, fluid capacities, technical specifications
Engine Family:
M103, M110, M116, M117 (Representative engines, manual will cover specific variants)
Displacement Range:
2.6L to 5.6L (e.g., 2.6, 3.0, 3.8, 4.2, 5.0, 5.6 Liters)
Horsepower Range:
Approx. 150 hp to 270 hp (varies by engine and market)
Torque Range:
Approx. 210 Nm to 400 Nm (varies by engine and market)
Fuel Delivery:
Bosch K-Jetronic (CIS), Bosch KE-Jetronic (CIS-E), Electronic Fuel Injection (EFI)
Ignition Type:
Electronic Ignition (e.g., EZL/EIS)
Transmission Types:
4-Speed Automatic (722.3, 722.4), 5-Speed Automatic (722.5), 4-Speed Manual (less common)
Transmission Options:
5-Speed Manual (on some models)
Automatic Features:
Hydraulic control, often with sport/economy modes
Crash Safety:
Designed to robust European safety standards of its era; specific ratings may vary by region and test methodology
Active Safety Systems:
ABS (Anti-lock Braking System) standard on most models
Passive Safety Features:
Reinforced safety cell, driver's airbag (late models), seatbelt pre-tensioners (late models)
Oil Change Interval:
Typically 10,000 - 15,000 km or 12 months (refer to manual for specific engine/oil)
Major Service Intervals:
e.g., Spark plugs, transmission fluid, coolant at 50,000 - 100,000 km
Engine Oil Type:
API SG/SH or ACEA A2/A3 (e.g., 15W-40, 10W-40, 5W-40 synthetic depending on climate and engine)
Transmission Fluid Type:
MB 236.1 (for 4-speed automatic, e.g., Dexron II equivalent), MB 236.6 or 236.7 (for 5-speed automatic)
Coolant Type:
Ethylene glycol based, Mercedes-Benz specification (e.g., MB 325.0 / G05)
Common Problems:
Brake accumulator failure, vacuum leaks (hoses), window regulator issues, timing chain stretch (M103/M111), fuel distributor seal leaks, differential seal leaks, front suspension sagging (worn springs/shocks)
Model Recognition:
Widely praised for its comfort, build quality, and pioneering safety features for its time. Often cited as one of the best luxury sedans of the 1980s.
Expert Reviews:
Consistently ranked highly by automotive publications for its engineering and refinement.
Manual Quality:
Official Workshop Manual quality, providing factory-level repair procedures.
