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Introduction
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Market Position
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Target Audience:
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Mercedes-Benz R107/C107 SL-Class owners, DIY enthusiasts, independent repair shops
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Value Proposition:
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Provides dealership-level diagnostic and repair expertise for owners to maintain and repair their vehicles
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Competitive Analysis
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Differentiation:
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Vehicle-specific, factory-level detail, comprehensive coverage, digital convenience
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Key Features
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Convenience:
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Single easy-to-use PDF, no flipping through books, portable when printed
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Durability:
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Protects against greasy, torn, or lost paper manuals
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Accessibility:
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Zoomable images, printable pages, cross-platform compatibility
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Manual Coverage
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Systems Covered
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Powertrain:
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Engine mechanical, fuel system, ignition, starting, charging, cooling, lubrication, emission control, automatic transmission, manual transmission, clutch
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Drivetrain:
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Transfer case (if applicable), propeller shaft, drive shaft, differential, axle, suspension
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Chassis:
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Wheels, tires, brakes (control, parking), steering (column, power steering)
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Electrical:
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Wiring schematics, lighting, instruments, audio/visual, horn, wipers, washers, power accessories, multiplex/CAN communication
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Body Interior:
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Air conditioning, supplemental restraint system, seat belts, engine immobilizer, cruise control, door locks, meter, windshield/glass/mirrors, instrument panel, seats, engine hood/doors, exterior/interior trim
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Procedures Included
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Maintenance:
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Routine maintenance, fluid changes, filter replacements, inspections
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Diagnostics:
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Troubleshooting, fault finding, diagnostic procedures for all major systems
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Repair:
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Step-by-step repair instructions for all components and systems
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Rebuild:
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Complete rebuild procedures for engine, transmission, and other major components
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Electrical Work:
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Detailed wiring diagrams, circuit tracing, component testing
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Technical Depth
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Depth:
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Vehicle-specific, technician-level detail, not generic information
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Detail Level:
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Complete step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications
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Engine Specifications
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Primary Engine
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Engine Type:
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V8 (likely M117 family for 1984 SL models)
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Displacement Liter:
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Likely 3.8L (M116) or 5.0L (M117), common for 1984 SL models (e.g., 380SL, 500SL)
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Performance
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Horsepower Range:
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Approx. 155-230 hp (depending on specific engine and market)
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Torque Range:
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Approx. 190-260 lb-ft (depending on specific engine and market)
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Fuel System
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Fuel Injection:
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Bosch K-Jetronic (CIS - Continuous Injection System)
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Fuel Type:
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Unleaded gasoline
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Maintenance
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Spark Plugs:
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Specific types and gap settings detailed in manual
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Oil Type:
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API SG, SAE 15W-40 or 20W-50 often recommended (manual will specify exact viscosity and API rating)
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Engine Management
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Ignition System:
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Electronic ignition with distributor and ignition coil
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Transmission
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Standard
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Type:
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Automatic Transmission (e.g., 4-speed 722.3 for V8 models)
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Optional
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Type:
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Manual Transmission (less common for R107 SL-Class, but C107 models might have options)
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Features
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Automatic Features:
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Torque converter, hydraulic control
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Maintenance
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Automatic Transmission Fluid:
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Dexron III or equivalent (manual will specify exact MB specification, e.g., 236.3)
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Manual Transmission Fluid:
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GL-4 or GL-5 gear oil (manual will specify exact viscosity and specification)
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Maintenance
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Service Intervals
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Oil Change:
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Typically every 5,000 - 7,500 miles or annually (manual provides exact intervals and conditions)
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Air Filter:
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Check every 10,000 miles, replace as needed (manual specifies intervals)
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Fuel Filter:
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Replace every 20,000 - 30,000 miles (manual specifies)
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Transmission Fluid:
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Change fluid and filter every 30,000 - 50,000 miles (manual specifies)
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Fluid Specifications
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Coolant:
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50/50 mix of Mercedes-Benz approved antifreeze and distilled water (manual specifies type/color)
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Brake Fluid:
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DOT 4 (manual specifies exact MB specification)
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Power Steering Fluid:
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ATF Dexron II or III equivalent (manual specifies)
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Known Issues
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Common Wear Items:
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Fuel distributor seals, climate control vacuum actuators, wear on suspension bushings, timing chain guides, window regulators
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K Jetronic System:
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Can be sensitive to air leaks and fuel pressure variations; requires specialized knowledge for diagnosis and repair
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