🏷️ Basic Information Identification Make: Mercedes-Benz Model: W126 SEL Year: 1982 Codes Chassis Code: W126 Body Style Code: SEL (Sonderlenkachse - Special Axle, indicating long wheelbase) 👋 Introduction Market Position Target Audience: Mercedes-Benz W126 SEL owners, independent repair shops, automotive enthusiasts Vehicle Segment: Full-size Luxury Sedan Competitive Analysis Value Proposition: Provides dealership-level diagnostic and repair information, enabling DIY maintenance and reducing reliance on expensive professional services. Key Features Unique Selling Points: Vehicle-specific, step-by-step instructions, detailed diagrams and schematics, comprehensive A-Z coverage, digital format for ease of use and preservation. 📋 Manual Details Coverage Areas Primary Coverage: Complete Service and Repair Model Variants Covered: All W126 SEL models for 1982 Scope: A-Z (from basic maintenance to complex repairs), covering all aspects of the vehicle's mechanical and electrical systems. Page Count Estimated Page Count: Extensive (typically 1000+ pages for comprehensive factory manuals) Manual Type Type: Factory Service and Repair Manual Language Language: English Format Format: PDF Digital Features: Searchable, Printable, Zoomable Images Digital Distribution: Delivered as a downloadable file for immediate access. 📖 Manual Coverage Systems Covered Powertrain: Engine overhaul, fuel system, ignition, cooling, lubrication, emissions control, exhaust systems Drivetrain: Automatic transmission service and repair, driveshafts, differential, axle shafts Chassis: Suspension (front and rear), steering system (including power steering), brakes (hydraulic, parking brake), wheels and tires Electrical: Complete wiring schematics, starting and charging system, lighting, instruments, accessories, fuse/relay identification, diagnostic procedures Body And Interior: Body panels, doors, windows, mirrors, seats, interior trim, climate control (HVAC), supplemental restraint systems (SRS - if applicable to '82 model, though likely limited or absent), seat belts Interior Comfort: Air conditioning, heating, ventilation, power accessories (windows, locks, seats, sunroof), seat belts, and supplemental restraint systems (where applicable, though unlikely for '82). Body And Trim: Exterior body panel alignment and repair, door mechanisms, glass replacement, seals, interior trim panel removal and installation. Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication points Diagnostics: Troubleshooting guides, diagnostic codes (if applicable), symptom-based diagnosis Repair: Component removal, installation, adjustment, and overhaul for all major systems Technical Specifications: Torque values, clearances, fluid types and capacities, electrical resistance, performance data Troubleshooting: Systematic approaches to diagnosing problems in all covered systems, including electrical faults, engine performance issues, and climate control malfunctions. Component Replacement: Detailed instructions for removing and installing virtually every component of the vehicle, from minor sensors to major drivetrain assemblies. Technical Depth Depth: Comprehensive: Covers everything from routine maintenance to full engine and transmission rebuilds, including detailed electrical system diagnostics and repair. 📊 Manual Specifications File Format Type: PDF Searchability: Text within the PDF is searchable, allowing quick access to specific topics or part numbers. Print Quality Feature: All pages are printable for on-site use; images can be enlarged for detail. Binding Type Physical Format: N/A (Digital PDF) Paper Type Digital Storage: Stored on PC, reducing wear and tear compared to physical manuals. Compatibility Operating Systems: Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac compatible Requirements Software: Adobe PDF Reader, Winzip (free online) ⚙️ Engine Specifications Primary Engine Engine Code Typical: M116 (for 3.8L V8) or M117 (for 5.0L V8, common in SEL models of this era) Engine Code Typical Engine Configuration: V8 SOHC (Single Overhead Camshaft) Performance Displacement Liters: Typically 5.0 Liters (for SEL, corresponding to 500SEL) or 3.8 Liters (for 380SEL) Horsepower Approximate: Approximately 177-230 hp depending on engine size and market specifications Torque Approximate: Approximately 240-320 lb-ft depending on engine size and market specifications Fuel System Injection Type: Bosch K-Jetronic (CIS - Continuous Injection System) mechanical fuel injection Fuel Type: Unleaded Gasoline Components: Fuel distributor, air flow meter, warm-up regulator, fuel injectors, cold start valve. 🔧 Transmission Standard Type: 4-speed Automatic Transmission (e.g., 4G-TRONIC) Optional Availability: N/A (Automatic was standard for SEL) Features Shift Modes: Typically two shift modes: 'E' (Economy) and 'S' (Standard or Sport) 📐 Dimensions Exterior Wheelbase Mm: Approximately 3080 mm (121.3 inches) for the long-wheelbase SEL model Overall Length Mm: Approximately 5150 mm (202.8 inches) for the long-wheelbase SEL model Weights Curb Weight Kg Approx: Approximately 1700-1800 kg (3750-3970 lbs) depending on engine and equipment 🛡️ Safety Features Ratings Crash Test Era Compliance: Designed to meet safety standards of its era; ABS became widely available towards the end of the W126 generation. Active Features ABS Availability: Optional, depending on specific production date and market. Not standard on all 1982 models. Passive Features Airbags: Not available on 1982 models. Driver airbag introduced later in the W126 generation. Seat Belts: Standard front and rear seat belts; pre-tensioners may have been optional or introduced later. 💡 Technology Features Infotainment Audio System: Factory AM/FM cassette player, often with optional amplifier and advanced speaker systems for the era. Driver Assistance Cruise Control: Standard feature on SEL models, utilizing vacuum or electronic actuation. Connectivity Multiplex Can Communication: N/A. Vehicle architecture predates CAN bus systems. Communication is primarily via...