🏷️ Basic Information Identification Make: Mercedes-Benz Model: E-Class Chassis Code: W124 Model Year: 1990 Generation Generation Name: First Generation (W124) Generation Years: 1984-1995 (Global) 👋 Introduction Market Position Vehicle Class: Executive Mid-size Sedan/Estate (E-Segment) Brand Reputation: Mercedes-Benz known for build quality, durability, and engineering excellence Competitive Analysis Key Competitors 1990: BMW 5 Series (E34), Audi 100 (C3/C4), Jaguar XJ (XJ40), Volvo 700 Series Key Features Vehicle Strengths: Robust construction, refined ride, excellent safety features, durable powertrains, sophisticated design Manual Value Proposition: Provides dealership-level technical information, enabling DIY repairs and comprehensive understanding of the vehicle, saving costs and enhancing ownership experience. Manual Advantage: Vehicle-specific, not generic; offers step-by-step instructions with diagrams and schematics. 📋 Manual Details Coverage Areas Primary Coverage: All models and all repairs A-Z for 1990 Mercedes-Benz W124 E-Class Engine Coverage: Petrol and Diesel engines common to the 1990 W124 E-Class Transmission Coverage: Automatic and Manual Transmissions Electrical Coverage: Comprehensive electrical schematics, diagnostics, and component descriptions Body Coverage: Exterior and interior body repairs, trim, and glass replacement Page Count Estimated Page Count: High, comprehensive volume (exact count not specified but implies full factory manual detail) Manual Type Manual Type: Factory Service and Repair Manual Purpose: Diagnosis, Maintenance, Service, and Repair Language Language: English Format Digital Format: PDF Compatibility: Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac 📖 Manual Coverage Systems Covered Powertrain Systems: Engine, Fuel System, Lubrication, Cooling, Ignition, Starting, Charging, Emission Control, Intake, Exhaust, Automatic Transmission, Manual Transmission, Clutch Drivetrain Systems: Transfer Case (if applicable), Propeller Shaft, Drive Shaft, Differential, Axle, Suspension, Tire & Wheel Chassis Systems: Brake Control, Brakes, Parking Brake, Steering Column, Power Steering Body And Interior Systems: Air Conditioning, Supplemental Restraint System (SRS), Seat Belts, Engine Immobilizer, Cruise Control, Wiper & Washer, Door Locks, Meter, Audio/Visual, Horn, Windshield/Glass/Mirror, Instrument Panel, Seats, Engine Hood/Door, Exterior & Interior Trim Electrical Systems: Multiplex/CAN Communication, General Electrical Components, Wiring Schematics Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, inspections Repair Procedures: Step-by-step instructions for a vast array of repairs across all vehicle systems Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, fault code interpretation (where applicable) Component Overhaul: Detailed procedures for rebuilding major components like engines and transmissions Installation Procedures: Instructions for installing new or replacement parts and accessories Technical Depth Depth Of Information: Factory-level, highly detailed Illustrations And Diagrams: Includes numerous diagrams, illustrations, and wiring schematics Specification Detail: Provides precise specifications for all aspects of the vehicle Troubleshooting Complexity: Covers basic to advanced troubleshooting scenarios 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable due to PDF format, especially with OCR capabilities Print Quality Printability: All pages are printable Enlargement Capability: Images and diagrams can be blown up and printed enlarged Binding Type Binding: Digital (no physical binding) Paper Type Paper Type: N/A (Digital file) Digital Requirements Software Requirements: Adobe PDF Reader, WinZip (or similar decompression utility) Download Speed: Speed Download (implies optimized file size for quick retrieval) ⚙️ Engine Specifications Primary Engine Engine Options 1990: Likely includes M102 (2.0L, 2.3L inline-4) and M103 (2.6L, 3.0L inline-6) petrol engines, and OM601 (2.0L inline-4), OM602 (2.5L, 2.9L inline-5) diesel engines. Specific engine for the 'E' designation varies by market and exact model variant (e.g., 230E, 300E). Performance Fuel Delivery: Bosch K-Jetronic or KE-Jetronic fuel injection for petrol models, Mechanical Diesel Injection for diesel models. Fuel System Fuel Type: Unleaded Gasoline (Petrol), Diesel Fuel Engine Management Ignition System: Electronic Ignition (e.g., breakerless) Lubrication Oil Capacity Approx: Varies by engine, typically 5-8 liters. Manual will specify exact capacity and grade. 🔧 Transmission Standard Standard Transmission: Likely a 5-speed manual transmission on base models, or 4-speed automatic (722.4). Optional Optional Transmission: 4-speed automatic (722.4) or 5-speed automatic (722.3/722.5) on higher trims or specific engine variants. Features Automatic Features: Torque converter, hydraulic control, potentially electronic control on later models within the W124 range, but 1990 likely primarily hydraulic. 📐 Dimensions Exterior Body Styles: Saloon (Sedan), Estate (T-model), Coupe (C124), Convertible (A124) - though the manual specifically states W124 E, implying Sedan/Estate focus. Weights Curb Weight Approx: Varies significantly by model and body style, typically ranging from 1450 kg to 1700 kg. 🛡️ Safety Features Ratings Safety Standards: Designed to meet high Mercedes-Benz safety standards for the era; ABS typically standard or optional. Active Features Active Safety: Anti-lock Braking System (ABS), Advanced Suspension Geometry for stability Passive Features Passive Safety: Reinforced chassis, crumple zones, driver's airbag (optional on some models, potentially standard on later 1990 production), seat belt pre-tensioners 💡 Technology Features Infotainment Audio System: Factory radio/cassette player, often with a separate amplifier. Manual covers basic operation and component location. Driver Assistance ABS System: Anti-lock Braking System (ABS) diagnosis and repair procedures. Connectivity Central Locking: Vacuum-actuated central locking system, known for potential leaks in lines or actuators. Manual details troubleshooting. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 7,500 -...