🏷️ Basic Information Identification Make: Mercedes-Benz Model: A-Class Model Code: W168 Engine Variant: A190 Production Years Covered: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Codes Vehicle Platform: W168 👋 Introduction Market Position Market Segment: Compact premium hatchback segment. Competitive Analysis Competitors: Volkswagen Golf, Ford Focus, Opel Astra, BMW 3 Series Compact (E36/5). Key Features Design Philosophy: Innovative sandwich floor concept ('Silver Arrow'), maximizing interior space and safety in a compact footprint. Innovation: Pioneering safety features and unique packaging for its time. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Language: English Format: PDF Download Page Count Page Count: Hundreds of pages (specific count not provided, typical for factory manuals) 📖 Manual Coverage Systems Covered Engine: Detailed diagnostics, repair procedures, component identification, torque specifications for the M166 engine family specific to the A190. Transmission: Service and repair of automatic and manual transmissions, including clutch operation, shift mechanisms, and hydraulic control systems. Brakes: Hydraulic system, ABS, ESP, brake pad replacement, rotor servicing, brake caliper overhaul, bleeding procedures. Suspension: Front and rear suspension components, shock absorbers, springs, control arms, wheel alignment specifications. Steering: Power steering system, steering rack, steering column, universal joints, diagnostic procedures. Electrical: Complete wiring diagrams, fuse box layouts, component testing, diagnostic trouble codes (DTCs), power distribution. HVAC: Air conditioning system, heater core, blower motor, climate control module, refrigerant charging procedures. Bodywork: Body panel repair, door mechanisms, interior trim removal, glass replacement, chassis specifications. Restraints: Airbag system diagnostics and replacement, seatbelt mechanisms, pre-tensioner system. Fuel System: Fuel pump, fuel injectors, fuel pressure regulator, evaporative emission control (EVAP) system. Cooling System: Radiator, water pump, thermostat, coolant types and capacities, cooling fan operation. Procedures Included Maintenance: Routine maintenance procedures such as oil changes, filter replacements, spark plug changes, fluid level checks. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common and complex faults across all vehicle systems. Repair: Step-by-step repair instructions for component replacement, assembly, and disassembly, with detailed torque specifications. Diagnostics: Procedures for using diagnostic tools (e.g., STAR Diagnosis system) to read fault codes, perform actuations, and monitor live data. Adjustments: Calibration and adjustment procedures for various systems, including throttle body, idle control, and sensor settings. Component Replacement: Detailed instructions for replacing major and minor components, including engine, transmission, brakes, and electrical modules. Wiring Diagrams: Comprehensive and detailed wiring diagrams for all electrical systems, color-coded for clarity. Technical Depth Depth: Complete factory-level technical information, suitable for professional technicians and advanced DIY enthusiasts. Detail Level: In-depth explanations of system operation, component function, and diagnostic logic. Specifications: Extensive listing of all relevant technical specifications, including torque values, clearances, fluid capacities, and electrical parameters. 📊 Manual Specifications File Format File Format: PDF Searchability: Likely text-searchable PDF, allowing for quick navigation to specific topics. Print Quality Print Quality: High-resolution images and diagrams, suitable for printing. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: M166.990 Engine Type: Inline-4 Cylinder, Naturally Aspirated Displacement: 1.9 Liters (1998 cc) Performance Horsepower: 125 PS (123 hp; 92 kW) at 5500 rpm Torque: 180 Nm (133 lb-ft) at 3600 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (Bosch Motronic) Fuel Type: Unleaded Gasoline (Octane rating specified in manual) Other Bore X Stroke: 82.0 mm x 93.0 mm Compression Ratio: 10.6:1 Engine Management: ME 2.0 or ME 2.8 ECU (depending on year/market) 🔧 Transmission Standard Type: 5-speed Manual Transmission (Getrag 285) Optional Type: 5-speed Automatic Transmission (Mercedes-Benz 5G-Tronic, 722.6 variant) Features Automatic Features: Selectable driving programs (Economy/Sport), Tiptronic function. Fluid Specifications Manual Fluid: MB 235.10 (or equivalent API GL-4) SAE 75W-85 gear oil (refer to manual for exact specification) Automatic Fluid: MB 236.10 or MB 236.12 ATF (Automatic Transmission Fluid) (refer to manual for exact specification) 📐 Dimensions Exterior Length: 3818 mm (150.3 in) Width: 1719 mm (67.7 in) Height: 1590 mm (62.6 in) Wheelbase: 2513 mm (98.9 in) Weights Curb Weight: Approx. 1200-1250 kg (2646-2756 lbs) Gross Vehicle Weight: Approx. 1600-1650 kg (3527-3638 lbs) Cargo Cargo Volume: 390 liters (13.8 cu ft) with rear seats up, expandable to 1140 liters (40.3 cu ft) with rear seats folded. 🛡️ Safety Features Ratings Euro Ncap: 4 stars (original assessment, may vary by specific testing conditions and year). Active Features ABS: Standard Anti-lock Braking System Esp: Optional Electronic Stability Program (Adaptive ESP in later models) Passive Features Airbags: Front airbags, optional side airbags, optional window airbags. Structure: Sandwich floor construction designed to slide under the passenger cell in frontal impacts. 💡 Technology Features Infotainment Head Unit: Various optional Mercedes-Benz audio systems (e.g., Audio 10, Audio 30) with CD or cassette players. Navigation: Optional Becker or Mercedes-Benz factory navigation systems. Driver Assistance Cruise Control: Optional cruise control system. Parking Assistance: Optional rear parking sensors. Connectivity Telephony: Optional hands-free telephone system with cradle. 🔧 Maintenance Service Intervals Oil Change: Typically...