Covered Series:
107, 123, 124, 126, 129, 140, 201
Production Years Covered:
1981-1993
Vehicle Types Covered:
Includes Sedans, Coupes, Convertibles (SL), Wagons (T-model), and potentially Limousines.
Chassis Codes:
W107, W123, W124, W126, R107, C107, C123, S123, W123, A123, C124, S124, A124, W124, C126, V126, W126, R129, W140, C140, W201
Target Audience:
DIY enthusiasts, independent workshops, and Mercedes-Benz owners seeking detailed repair and maintenance information.
Value Proposition:
Provides comprehensive, dealership-level technical data at a fraction of the cost of official manuals or professional labor.
Accessibility:
Easy-to-follow, step-by-step instructions suitable for various skill levels.
Visuals:
Includes detailed illustrations, exploded view diagrams, and electrical schematics.
Primary Coverage:
Service, Repair, Workshop Procedures
Secondary Coverage:
Maintenance, Diagnostics, Electrical Diagrams, Torque Settings, Fluid Capacities, Spare Parts Illustrations
Diagrams And Illustrations:
Includes electrical diagrams, detailed illustrations, and exploded views.
Estimated Pages:
Extensive (Specific count not provided, but described as 'COMPLETE' and 'Extremely detailed')
Type:
Workshop Manual / Service Manual
Engine:
Detailed coverage including engine removal/installation, internal components, and general maintenance.
Fuel System:
Injection and Ignition Systems detailed, likely covering Bosch K-Jetronic and other contemporary injection systems.
Transmission:
Coverage for Clutch and Gearbox (manual and automatic transmissions specific to the era).
Suspension Steering:
Includes Suspension System and Wheels, covering front and rear suspension, steering components, and alignment.
Brakes:
Braking System details, including hydraulic systems, ABS (if applicable to models), and component replacement.
Electrical:
Comprehensive Electrical System coverage with detailed diagrams for lighting, ignition, power distribution, and accessories.
Bodywork:
Bodywork section detailing panel removal, repair, and adjustments, including interior trim.
Climate Control:
Air Temp Control System coverage, likely including HVAC system servicing and repair.
Wheel And Tire:
Specifications for wheel types, bolt patterns, tire sizes, and pressures.
Driving Controls:
Information related to control driving instructions and potentially dashboard controls.
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, tune-ups (e.g., spark plug changes).
Repair:
Step-by-step repair instructions for all major mechanical and electrical components, from minor adjustments to major overhauls (e.g., engine rebuilding).
Diagnostics:
Troubleshooting guides and diagnostic procedures for common faults.
Technical Data:
Torque settings, fluid capacities, specifications for various components.
Depth:
Full workshop level, covering everything from basic maintenance to complete engine and transmission rebuilds, with detailed illustrations and diagrams.
Diagram Detail:
Extensive use of exploded view diagrams for component identification and assembly/disassembly guidance.
Torque Specifications:
Crucial torque values for all critical fasteners, ensuring proper tightening and preventing damage.
Fluid Capacities:
Precise fluid capacities for engine oil, coolant, transmission fluid, differential oil, brake fluid, and windshield washer fluid.
Spare Parts Illustrations:
Inclusion of spare parts illustrations to aid in identifying and ordering replacement components.
Engine Variants Covered:
Covers a wide range of Mercedes-Benz inline-4, inline-6, and V8 petrol and diesel engines prevalent in these chassis from 1981-1993. Specific engine codes (e.g., M102, M103, M104, M110, M116, M117, OM601, OM602, OM603) are likely detailed.
Performance Data:
Likely includes horsepower, torque, and RPM data for various engine options. Specifics would vary by model and engine variant.
Injection Systems:
Detailed information on Bosch K-Jetronic (CIS), KE-Jetronic (CIS-E), and potentially early electronic fuel injection (EFI) systems.
Ignition Components:
Coverage of distributor, ignition coil, spark plug types, timing adjustments, and related electronics.
Cooling Components:
Radiator, water pump, thermostat, hoses, and fan servicing.
Oil Specifications:
Likely specifies required engine oil viscosity grades (e.g., SAE 15W-40, 10W-40, 5W-30) and API service classifications, along with oil capacities.
Standard Transmission:
Manual transmissions (e.g., 4-speed, 5-speed) are covered, including clutch replacement and gearbox servicing.
Optional Transmission:
Automatic transmissions (e.g., 3-speed, 4-speed automatic) common to Mercedes-Benz models of this era (e.g., 722.3, 722.4, 722.5).
Automatic Transmission Fluid:
Specifications for ATF (Automatic Transmission Fluid) and fluid change intervals.
Clutch Service:
Detailed procedures for clutch disc, pressure plate, and release bearing replacement.
Vehicle Dimensions:
Dimensions will vary significantly across the listed series (e.g., 107 SL/SLC, 123 Sedan/Wagon/Coupe, 124 Sedan/Wagon/Coupe/Cabriolet, 126 S-Class/SEC, 129 SL, 140 S-Class, 201 190E). The manual likely provides specific dimensions for each model range.
Curb Weight:
Curb weights for various models and configurations would be detailed in the manual.
Gross Vehicle Weight Rating:
GVWR specifications for load limits.
Crash Test Results:
While direct crash test ratings from modern agencies might not be available for all models, the manual would detail structural integrity and safety features relevant to the era.
Braking System Features:
Information on ABS (Anti-lock Braking System) if equipped, and general brake system diagnostics.
Restraint Systems:
Coverage of seat belts, and potentially early airbag systems (if equipped on later models within the range).
Audio Systems:
Information on factory-installed radio and speaker systems, including removal and installation procedures for head units and speakers.
Cruise Control:
Service and troubleshooting for the cruise control system, which was a common feature on higher-trim models.
Antenna Systems:
Details on power antenna operation and repair.
Headlight Adjustment:
Procedures for adjusting headlight aim and replacing bulbs.
Central Locking System:
Troubleshooting and repair for vacuum-operated or electric central locking systems.
Scheduled Maintenance:
Detailed service schedules for various mileages/time intervals (e.g., 10,000 km, 20,000 km, 40,000 km services) covering oil changes, filter replacements, inspections, and component servicing.
Coolant Type:
Likely specifies Mercedes-Benz approved coolant specifications (e.g., G05 or equivalent).
Brake Fluid Type:
Specifies DOT 3 or DOT 4 brake fluid, depending on system requirements.
Power Steering Fluid:
Specifies the correct hydraulic fluid for the power steering system.
Common Problems:
While not explicitly stated as a troubleshooting guide for 'known issues,' the detailed nature of the manual allows for diagnosis and repair of common problems for these models, such as fuel distributor issues, vacuum leaks, suspension wear, and electrical contact problems.
Spark Plug Replacement:
Detailed procedure for spark plug replacement, including torque specifications and correct plug type (e.g., Bosch W8AC, W7AC, or equivalent).
Filter Replacement:
Instructions for replacing air filters, fuel filters, oil filters, and cabin filters (if applicable).
Mercedes Benz Legacy:
Draws from Mercedes-Benz's reputation for engineering excellence, durability, and luxury during the 1980s and early 1990s.
Series Significance:
Covers a pivotal era for Mercedes-Benz, including the introduction of the W124 E-Class, the evolution of the S-Class (W126 to W140), the iconic R107 SL, and the compact 201 190E.
Manufacturing Period:
Focuses on models produced during the peak of their development and market presence in the 1980s and early 1990s.
Model Acclaim:
The specific models covered by this manual, such as the W124 E-Class, are widely recognized for their engineering, build quality, and driving dynamics, often earning praise in automotive publications of their time.
Reliability:
While specific awards aren't detailed, Mercedes-Benz vehicles from this era are historically known for their robust engineering and longevity when properly maintained, a testament to their build quality.
Automotive Standards:
The manual adheres to the technical documentation standards expected for professional automotive repair, providing accurate specifications and procedures.
