🏷️ Basic Information Identification Make: Mercedes-Benz Model: Series 107, 123, 124, 126, 129, 140, 201 Applicable Years: 1981-1993 Codes Chassis Codes: W107, W123, W124, W126, R107, C107, W129, W140, W201 👋 Introduction Market Position Target Audience: Mercedes-Benz owners and independent repair shops looking for comprehensive repair and maintenance guidance. Competitive Analysis Competitors: Other OEM service manuals, Haynes, Chilton, and other aftermarket repair guides. This manual aims to replicate OEM-level detail. Key Features Features: Illustrated with clear step-by-step instructions, troubleshooting support, comprehensive coverage across multiple series, professional technician quality, instant download. Diy Focus: Emphasizes its utility for DIY enthusiasts and professional mechanics alike, aiming to empower owners to perform their own repairs and maintenance. 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair for multiple Mercedes-Benz series. Specific Series Coverage: Explicitly covers: W107 (SLC/SL), W123 (Sedan, Coupe, Estate), W124 (Sedan, Coupe, Estate, Convertible), W126 (SE/SEL/SEC), R107 (SL), C107 (SLC), W129 (SL), W140 (SE/SEL/SEC), W201 (190/190E/190D). Page Count Estimated Page Count: Variable (large file size, up to 5GB mentioned) Manual Type Type: Service and Repair Manual Language Language: English (implied by product description and target market) Format Format: Digital Download (PDF, ZIP, RAR, EXE) Compatibility: Compatible with all operating systems (Windows, Linux, Mac) and can be opened with any PDF reader. 📖 Manual Coverage Systems Covered Engine: Engine oil, filter, valve clearance, idle speed, injection timing, fuel filters, air filters, V-belts, intake/exhaust manifolds, oxygen sensor, spark plugs, coolant. Transmission: Manual transmission oil, automatic transmission fluid and filter, transfer case fluid, clutch system. Suspension Steering Brakes: Level control (ADS, ASD, 4MATIC), self-leveling suspension, front axle, rear axle, ball joints, wheels, tires, tire pressure, wheel bolts, drive shaft flexible coupling, brake fluid, brake lines, brake pads/discs, parking brake, power steering fluid, steering play, steering bolts. Electrical Body Comfort: Battery fluid, warning lamps, indicator lamps, water drains, engine compartment panels, door hinges, door locks, hydraulic top, sunroof, soft top, windshield washer fluid, cassette deck tone head, antenna mast, headlamps, exterior lamps, wiper/washer systems, AC refrigerant charge, dust filter, charcoal filter, recirculating air filter, folding side mirrors, hoods, safety belts, backrest lock, noise encapsulation, body paint. Climate Control: Heating and ventilation system maintenance, including dust filters, active charcoal filters, and recirculating air filters. Also covers windshield washer fluid. Exhaust System: Retightening exhaust flange and exhaust system connections. Procedures Included Maintenance: Oil and filter changes, fluid checks and top-offs, filter replacements, belt inspections/adjustments, spark plug replacement, coolant replacement, brake fluid replacement, tire rotation and pressure adjustment. Repair And Diagnostics: Troubleshooting, valve adjustment, idle speed adjustment, injection timing adjustment, fuel system checks, brake system checks, clutch system checks, suspension component checks, steering system checks, electrical component checks, body panel removal/installation, lubrication. Body And Chassis: Suspension and body structure inspection, water leakage and corrosion inspection, lubricating door hinges and locks, soft top maintenance, sunroof cleaning, noise encapsulation removal/installation, body paint inspection. Interior Maintenance: Lubricating door locks, checking safety belt operation, cleaning cassette deck tone heads. Wheel Tire Service: Inspecting and rotating wheels, inspecting tires, correcting tire pressure, and tightening wheel bolts. Lighting And Wipers: Headlamp and exterior lamp inspection, windshield and headlamp wiper and washer inspection, windshield wiper blade replacement. Technical Depth Depth: Highly detailed, step-by-step instructions for repair, service, restoration, maintenance, rebuilding, and diagnosis, suitable for professional technicians and DIY enthusiasts. Diagnostic Procedures: Includes diagnostic procedures for common faults, often referencing specific troubleshooting trees and electrical wiring diagrams (though diagrams may be separate or integrated). 📊 Manual Specifications File Format Supported Formats: PDF, ZIP, RAR, EXE (downloadable) File Size Considerations: Large file sizes (up to 5GB) require adequate storage space and a stable internet connection for download. Print Quality Printable: Yes, printable from any computer. No restrictions on printing or saving to disc. Zoomable Illustrations: Manuals often contain zoomable illustrations, detailed component explosions, and exploded views for clarity. Binding Type Binding: Not Applicable (Digital Download) Paper Type Paper Type: Not Applicable (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Variants Covered: Wide range of gasoline and diesel engines used across the specified series, including inline-4, inline-6, and V8 configurations (specific displacements vary by model). Performance Typical Performance Ranges: Horsepower typically ranging from 90-300+ hp, Torque from 150-400+ lb-ft, depending on specific engine and model. Fuel System Fuel Delivery Systems: Includes fuel injection (e.g., Bosch K-Jetronic, KE-Jetronic, EIS) and older carburetor systems (less common in later years of this range). Fuel filters, pumps, and injectors are covered. Engine Maintenance Valve Adjustment Procedure: Detailed instructions for checking and adjusting valve clearance (e.g., using shims or adjusting screws, depending on engine type). Injection Timing Adjustment: Procedures for checking and adjusting injection timing for diesel engines and timing belt/chain procedures for gasoline engines. 🔧 Transmission Standard Standard Transmission Types: Both manual (e.g., 4-speed, 5-speed) and automatic transmissions (e.g., 3-speed, 4-speed) were common across these series. Optional Optional Transmission Types: Availability...