🏷️ Basic Information Identification Make: BMW Model: C1 125cc Model Designation: BMW C1-125 Product Name: BMW C1 125CC Service Repair Manual 1999 Onward Codes Chassis Codes: Likely E169 (internal BMW designation for C1 platform) 👋 Introduction Market Position Category: Innovative Urban Mobility Scooter/Motorcycle Hybrid Unique Selling Proposition: Enclosed safety cell, car-like driving position, weather protection, compact size Competitive Analysis Competitors: Traditional scooters, small motorcycles, enclosed mobility vehicles Key Features Design: Roll cage structure, safety belt, windshield wipers, optional air conditioning Practicality: Compact dimensions for urban maneuverability, weather protection Professional Use Target Audience: Professional mechanics, service centers, knowledgeable enthusiasts 📋 Manual Details Coverage Areas All Repairs Covered: A-Z Models Covered: All BMW C1 125cc models Page Count Estimated Page Count: Hundreds of pages (typical for comprehensive workshop manuals) Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Full overhaul, inspection, repair, tuning Engine Management Electrical: Ignition system, fuel injection, sensors, ECU diagnosis Transmission And Drivetrain: Automatic transmission operation, inspection, repair Chassis And Frame: Frame inspection, body panel removal and installation Suspension And Steering: Front and rear suspension components, steering system Braking System: Hydraulic system, ABS (if equipped), disc brake components Electrical System: Wiring diagrams, lighting, battery, starter, charging system Fuel System: Fuel tank, fuel pump, fuel injectors, emissions control Cooling System: Radiator, fan, coolant circulation Exhaust System: Muffler, catalytic converter, pipework Bodywork And Fairings: Panel removal, installation, repair, safety cell integrity Instrumentation And Controls: Dashboard instruments, switches, controls Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug checks, chain adjustment (if applicable) Troubleshooting Diagnostics: Fault finding for all major systems Engine Rebuilds: Complete disassembly, inspection, and reassembly Transmission Overhaul: Detailed steps for automatic transmission service Brake System Service: Bleeding, pad replacement, caliper servicing Electrical Component Testing: Testing of alternators, starters, sensors, etc. Suspension Component Replacement: Shocks, forks, bushings Bodywork Repair: Panel alignment, minor dent repair, fairing repair Wiring Diagram Interpretation: Detailed schematics for troubleshooting Technical Depth Depth: Comprehensive, suitable for professional mechanics and advanced DIY enthusiasts Diagnostic Codes: Includes diagnostic procedures and potential fault codes Torque Specifications: All critical fasteners torque values Clearances And Tolerances: Engine component clearances, valve adjustments 📊 Manual Specifications File Format File Type: PDF Searchable: Yes (assuming OCR'd PDF) Printable: Yes Print Quality Quality: High-resolution digital scan, clear text and diagrams Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Type: Four-stroke single-cylinder Displacement: 125 cc Bore X Stroke: Likely 52 mm x 58 mm (typical for this engine size) Compression Ratio: Likely around 10.5:1 to 11.5:1 Cooling System: Liquid-cooled Valve Train: SOHC, 4 valves Performance Horsepower: Approximately 15 HP (11 kW) at 8,250 rpm (exact figure may vary by region) Torque: Approximately 12 Nm at 6,500 rpm (exact figure may vary by region) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded gasoline Fuel Tank Capacity: Approximately 7-8 liters (precise figure required from manual) 🔧 Transmission Standard Type: Automatic continuously variable transmission (CVT) Drive Type: Belt drive to rear wheel Features Operation: Twist-and-go throttle, no clutch lever Fluid Type: Specific CVT fluid (refer to manual for exact specification, e.g., Honda HCF-2 equivalent or proprietary BMW fluid) 📐 Dimensions Exterior Length: Approx. 2.10 meters (exact figure required from manual) Width: Approx. 1.10 meters (at widest point including mirrors, exact figure required from manual) Height: Approx. 1.3 meters (to top of windscreen, exact figure required from manual) Weights Dry Weight: Approx. 150-160 kg (exact figure required from manual) Gross Vehicle Weight Rating: Likely around 300 kg (for rider and cargo) 🛡️ Safety Features Ratings Construction Safety: Integrated safety cell (roll cage structure) providing significant occupant protection Crash Testing: Demonstrated superior crashworthiness compared to conventional scooters/motorcycles Active Features Braking: Disc brakes front and rear, potentially ABS on some models Lighting: Halogen headlights, LED taillights (depending on year/spec) Passive Features Occupant Restraint: Four-point safety harness/seatbelt Windscreen: Large windscreen with integrated wipers and washer system for improved visibility Rollover Protection: Structural safety cell designed to protect the rider in a rollover 💡 Technology Features Infotainment Dashboard: Digital/analog combination instrument cluster with speedometer, tachometer, fuel gauge, temperature gauge, clock Driver Assistance ABS: Anti-lock Braking System available as an option on some models Connectivity Optional Features: Optional accessories like heated grips, advanced alarm systems, and charging ports were available. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 km or annually (refer to manual for exact recommendation) Spark Plug Replacement: Refer to manual, typically around 10,000-15,000 km Air Filter Replacement: Refer to manual, often checked at oil changes and replaced as needed Fluid Specifications Engine Oil Grade: Likely SAE 10W-40 or 15W-50 motorcycle specific oil (refer to manual for exact API/JASO specification) Engine Oil Capacity: Approximately 1.2-1.5 liters (refer to manual for exact capacity) Coolant Type: Ethylene glycol based coolant...