🏷️ Basic Information Identification Make: Mercedes-Benz Model: W126 SE Year: 1987 Codes Chassis Code: W126 Model Designation: SE (Special Executive) 👋 Introduction Market Position Target Audience: Mercedes-Benz W126 SE owners and independent repair technicians. Value Proposition: Provides dealership-level repair and maintenance information, enabling DIY repairs and saving on labor costs. Competitive Analysis Competitors: Generic repair guides, online forums, limited specialized publications. Differentiation: Vehicle-specific, factory-sourced, comprehensive A-Z coverage, digital format advantages. Key Features Authenticity: Exact same manual used by dealership technicians. Comprehensiveness: Covers all models and all repairs from A to Z. Usability: One easy-to-use PDF, printable pages, zoomable images. 📋 Manual Details Coverage Areas Primary Coverage: All models and all repairs A-Z for the 1987 Mercedes-Benz W126 SE. Specific Models: Includes coverage for all variants of the W126 SE sedan. Page Count Estimated Page Count: Extensive (specific number not provided, but described as 'complete'). Manual Type Type: Factory Service and Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine And Drivetrain: Engine, Control System, Fuel Service Specifications, Emission Control, Intake/Exhaust/Cooling, Lube, Ignition/Starting/Charging, Auto Transmission, Manual Transmission (if applicable), Transfer Propeller Shaft, Drive Shaft, Differential, Axle Suspension. Chassis And Body: Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering, Exterior & Interior, Engine Hood/Door, Windshield/Glass Mirror, Instrument Panel, Seat. Electrical And Electronics: Electrical, Multiplex/CAN Communication, Suppl. Restraint System (SRS), Seat Belt, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Lock, Meter Audio/Visual, Horn. Procedures Included Maintenance: Routine maintenance procedures and schedules. Diagnostics: Diagnostic procedures for identifying and troubleshooting issues. Repair: Step-by-step instructions for all repairs. Troubleshooting: Detailed troubleshooting guides. Technical Depth Depth: Vehicle-specific, technician-level detail, not generic. Content Type: Step-by-step instructions, diagrams, illustrations, wiring schematics, specifications. 📊 Manual Specifications File Format Format: PDF Compatibility: Windows (Vista32/64, XP, ME, 98, NT, 2000) and Mac compatible. Requirements: Adobe PDF Reader and Winzip (free online). Print Quality Printability: All pages are printable, allows for blowing up images. Binding Type Binding: Digital (PDF), no physical binding. Paper Type Paper Type: Not applicable (digital format). Additional Features Searchability: Implied by PDF format, allowing for easy searching of terms. Portability: Can be kept on PC, print only needed pages for workshop. ⚙️ Engine Specifications Primary Engine Engine Type: Likely M103 inline-six (2.6L or 3.0L) or M116 V8 (3.8L or 4.2L) for the 1987 SE model, depending on specific market and sub-model. Manual will detail specific engine variants. Performance Horsepower Range: Typical for the era, likely in the 150-230 HP range depending on engine. Torque Range: Corresponding torque figures for the respective engines. Fuel System Injection System: Likely Bosch K-Jetronic or KE-Jetronic (CIS-E) fuel injection. Fuel Type: Unleaded gasoline (premium required). Cooling Cooling System Type: Liquid-cooled. Lubrication Oil Type: Manual will specify Mercedes-Benz approved oil viscosity grades and specifications (e.g., MB 229.1 or similar for the period). 🔧 Transmission Standard Transmission Type: Typically a 4-speed automatic transmission (e.g., 722.3 or 722.4). Optional Transmission Type: A 5-speed manual transmission may have been available in certain markets, but less common for the SE designation. Features Fluid Type: Manual will specify the correct automatic transmission fluid (ATF) type and capacity. 📐 Dimensions Exterior Length: Approximately 197.4 inches (4988 mm) for the W126 sedan. Width: Approximately 70.5 inches (1791 mm). Height: Approximately 56.3 inches (1430 mm). Weights Curb Weight: Varies by engine and options, but typically in the 3700-4000 lbs (1680-1815 kg) range. Gross Vehicle Weight Rating: Specified by the manual for laden weight limits. 🛡️ Safety Features Ratings Crash Safety: Designed to meet rigorous safety standards of the era, with significant passive safety features. Specific NHTSA/Euro NCAP ratings for this vintage are unlikely but structural integrity was a Mercedes hallmark. Active Features Braking System: Four-wheel disc brakes, likely with ABS (Anti-lock Braking System) as standard or optional on 1987 models. Traction Control: ASR (Acceleration Skid Control) may have been available on some variants or introduced later in the W126 lifecycle, but less common for '87 SE. Passive Features Airbags: Driver's airbag was an option and becoming more common on premium vehicles by 1987. Manual will detail its function and service. Seat Belts: Lap and shoulder belts, potentially with pre-tensioners. Manual covers their operation and replacement. Body Construction: Reinforced safety cage, crumple zones. 💡 Technology Features Infotainment Audio System: Likely Blaupunkt or Becker brand premium audio systems, with options for cassette players and amplifiers. Manual covers installation, removal, and troubleshooting. Climate Control: Automatic climate control (often Thermatic or optional Thermotronic) with extensive vacuum-actuated systems. Manual details operation and repair of the HVAC system, including vacuum actuators and control modules. Driver Assistance Cruise Control: Standard cruise control system, which can be serviced according to manual instructions. Connectivity Multiplex Communication: While full CAN bus as we know it today was nascent, the W126 utilized multiplexed electrical systems and control units. The manual will detail these...