🏷️ Basic Information Identification Make: Mercedes-Benz Model: A-Class Internal Chassis Code: W168 Engine Variant: A140 Codes Product Code: MB-W168-A140-1997-2004-SRW 👋 Introduction Market Position Segment: Compact hatchback Target Audience: Value-conscious compact car buyers seeking Mercedes-Benz quality and engineering in a smaller package. Competitive Analysis Key Competitors: Volkswagen Golf, Ford Focus, Opel Astra, BMW 3 Series Compact (E36/5). Key Features Unique Selling Proposition: Sandwich floor construction for enhanced safety and interior space utilization, compact dimensions for urban maneuverability, Mercedes-Benz brand prestige. Innovation: Pioneering the compact premium segment for Mercedes-Benz, focus on safety engineering. 📋 Manual Details Coverage Areas Model Years Covered: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Engine Variants Covered: A140 (M166.940) Regions Of Applicability: Global (primarily European market focus) Page Count Estimated Page Count: 800-1200 (typical for comprehensive workshop manuals) Manual Type Manual Type: Workshop Manual / Service Manual / Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical (M166.940 1.4L), fuel system, ignition system, exhaust system, engine management (ECU) diagnostics. Transmission: Manual transmission (G503), automatic transmission (ASR 4-speed automatic with torque converter). Chassis: Front-wheel drive system, suspension (front MacPherson strut, rear semi-independent torsion beam axle), steering system (hydraulic power steering), braking system (front ventilated discs, rear drums), ABS, ESP. Electrical Systems: 12V electrical system, battery, alternator, starter motor, lighting (headlights, taillights, interior), instruments and displays, power windows, central locking, HVAC controls, SRS airbag system. Bodywork: Body construction, interior trim, exterior trim, doors, hood, trunk, bumpers, glass, seals. Procedures Included Maintenance: Oil change, filter replacement, coolant service, spark plug replacement, brake fluid flush, belt inspection/replacement, air filter replacement, cabin filter replacement. Repair Procedures: Engine overhaul, transmission repair, suspension component replacement, brake caliper/rotor replacement, steering rack replacement, electrical component diagnosis and repair, body panel repair. Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation (OBD-II), wiring diagrams, component testing procedures. Technical Depth Depth Of Information: Comprehensive: Covers routine maintenance to complete engine and transmission rebuilds, electrical system diagnostics, and bodywork. Diagnostic Capabilities: Detailed procedures for using diagnostic tools, interpreting sensor data, and pinpointing faults. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval. Printability: Printable pages for use in a workshop environment. Print Quality Image Resolution: High-resolution images and diagrams for clarity. Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: M166.940 Engine Type: Inline-4 Cylinder, SOHC (Single Overhead Camshaft) Displacement: 1397 cc (1.4 Liters) Performance Horsepower Ps: 82 PS @ 5000 rpm Torque Nm: 130 Nm @ 3750 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (Bosch Motronic ME 2.1/2.8) Fuel Type: Unleaded gasoline (RON 95 recommended) Engine Management Emissions Standard: Euro 3 compliant 🔧 Transmission Standard Transmission Type: 5-speed Manual Optional Transmission Type: 4-speed Automatic (ASR - Automatic Shift and Select) Features Automatic Transmission Modes: Standard, Winter (Economy) Manual Transmission Gearing: Gear ratios specific to M166 engine and G503 gearbox Fluid Specifications Manual Transmission Fluid: MB 235.10 (or equivalent API GL-4, SAE 75W-80) Automatic Transmission Fluid: MB 236.10 (or equivalent ATF Dexron II/III) 📐 Dimensions Exterior Length: 3626 mm Width: 1715 mm Height: 1591 mm Wheelbase: 2373 mm Weights Curb Weight Kg: Approx. 1120-1150 kg (depending on equipment) Gross Vehicle Weight Kg: Approx. 1500-1550 kg Cargo Luggage Capacity Liters: 390 Liters (rear seats up), 1030 Liters (rear seats folded) 🛡️ Safety Features Ratings Euro Ncap Rating: 4 Stars (for early models) Specific Safety Features: Sandwich construction (energy absorption zones), standard driver and front passenger airbags, optional side airbags. Active Features Electronic Stability Program: Optional ESP (Electronic Stability Program) Antilock Braking System: Standard ABS (Anti-lock Braking System) Passive Features Airbag System: Front airbags, optional front side airbags (Thorax airbags). Seatbelt Pretensioners: Standard front seatbelt pre-tensioners. 💡 Technology Features Infotainment Audio System: Standard radio/cassette or CD player, optional Bose sound system on higher trims. Display Technology: Digital display for climate control and basic audio information. Driver Assistance Cruise Control: Optional cruise control system. Parking Assistance: Optional parking sensors (Parktronic). Connectivity Phone Integration: Optional Bluetooth hands-free system (later models). 🔧 Maintenance Service Intervals Oil Change Interval: 15,000 km or 12 months, whichever comes first (flexible service system - ASSYST) Air Filter Replacement: Every 30,000 km or 24 months Cabin Filter Replacement: Every 20,000 km or 12 months Spark Plug Replacement: Every 60,000 km (NGK BKR5EK or equivalent) Fluid Specifications Engine Oil Specification: MB 229.1 (e.g., SAE 5W-40 or 10W-40) Engine Oil Capacity Liters: 4.5 Liters (with filter change) Coolant Specification: MB 325.0 / 326.0 (Antifreeze/Coolant concentrate, silicate-free) Brake Fluid Specification: DOT 4 Known Issues Common Problems: Electronic module failures (SAM unit), premature wear of suspension components (bushings, ball joints), potential for rust in certain areas, door lock actuator issues, early models sometimes had issues with the transmission selector module. Maintenance Recommendations: Regular inspection of suspension...