🏷️ Basic Information Identification Make: BMW Model: C1 125 Model Designation: C1 Engine Displacement: 125cc Generation Generation Code: E1 Codes Model Code: BMW C1 125 👋 Introduction Market Position Positioning: The BMW C1 was a unique urban mobility solution, positioning itself as a safe and comfortable alternative to traditional scooters with its enclosed safety cell and automotive-inspired features. This manual caters to owners and technicians seeking detailed information for maintaining and repairing this distinctive vehicle. Competitive Analysis Competitors: While not a direct competitor to conventional motorcycles or scooters, the C1 aimed to attract individuals seeking enhanced safety and weather protection in urban commuting. Its closest rivals would be premium maxi-scooters that offered some weather protection and higher performance, but none matched the C1's safety cage design. Key Features Features Covered By Manual: Comprehensive coverage of the C1's innovative safety cell, aerodynamic fairings, integrated roll-over protection, and the specific 125cc engine and automatic transmission. 📋 Manual Details Coverage Areas Coverage Years: 1999 onwards Page Count Estimated Page Count: 300+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: Instant Download PDF 📖 Manual Coverage Systems Covered Engine: Complete overhaul, diagnostics, timing, fuel delivery, ignition, lubrication, cooling Transmission: Automatic transmission (CVT) operation, maintenance, repair, fluid specifications Brakes: Front and rear brake systems, hydraulic components, bleeding procedures, ABS (if equipped) Electrical: Wiring diagrams, starter system, charging system, lighting, ignition, dashboard instruments, fuses and relays Chassis And Suspension: Front forks, rear suspension, steering system, wheel bearings, alignment Body And Frame: Body panel removal and installation, fairings, seat, safety cage structure Procedures Included Maintenance: Regular servicing, oil changes, filter replacements, spark plug service, brake fluid replacement, coolant checks Diagnostics: Troubleshooting guides for common and uncommon issues, fault code interpretation (if applicable) Repair: Step-by-step instructions for component repair and replacement, engine rebuild, transmission overhaul, electrical system repairs Installation: Procedures for installing accessories and replacement parts Technical Depth Depth: Comprehensive coverage from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Print Quality Searchable Text: Yes Resolution: High-resolution, clear diagrams and text Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, single-cylinder Bore X Stroke: Approx. 57.0 mm x 48.8 mm (typical for 125cc class, exact spec may vary and confirmed in manual) Cooling System: Liquid-cooled Performance Horsepower: Approx. 15-18 HP (exact specification to be confirmed in manual) Torque: Approx. 12-14 Nm (exact specification to be confirmed in manual) Fuel System Fuel Delivery: Fuel Injection (EFI) or Carburetor (specific system to be confirmed in manual) Fuel Type: Unleaded gasoline (RON 95 recommended) Lubrication Oil Type: Synthetic or semi-synthetic motorcycle oil, SAE 10W-40 or 15W-50 (refer to manual for exact BMW specification) Maintenance Spark Plug: NGK CR8E or equivalent (to be confirmed in manual) 🔧 Transmission Standard Transmission Type: Automatic Continuously Variable Transmission (CVT) Features Clutch Type: Wet multi-plate clutch (automatic engagement) Transmission Fluid: Specific CVT fluid (refer to manual for BMW part number and specification) 📐 Dimensions Exterior Length: Approx. 2120 mm (to be confirmed in manual) Width: Approx. 790 mm (to be confirmed in manual) Height: Approx. 1400 mm (to be confirmed in manual) Weights Dry Weight: Approx. 180-190 kg (to be confirmed in manual) Gross Vehicle Weight Rating: Approx. 345 kg (to be confirmed in manual) Fuel Tank Capacity: Approx. 15 Liters (to be confirmed in manual) 🛡️ Safety Features Ratings Rollover Protection: Integral safety cage with crumple zones, exceeding automotive crash standards for its class. Active Features Brakes: Disc brakes front and rear, ABS optional on some models Lighting: Halogen headlights, integrated LED taillights and indicators Passive Features Seatbelt: Integrated 4-point safety harness Windscreen: Integrated windscreen with optional wiper system 💡 Technology Features Infotainment Dashboard: Digital and analog gauges for speed, RPM, fuel level, temperature, and warning lights. Driver Assistance ABS: Anti-lock Braking System (ABS) was an optional feature on certain models, providing enhanced braking control. Connectivity Electrical System Complexity: Features an integrated electrical system managing lighting, ignition, instrumentation, and optional accessories, detailed thoroughly in the manual. 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 km or annually (refer to manual for precise BMW recommendation) Air Filter Replacement: Every 10,000 km or as needed based on conditions (refer to manual) Spark Plug Replacement: Every 10,000 km (refer to manual for specific spark plug type and gap) Brake Fluid Replacement: Every 2 years (refer to manual for DOT specification) Fluid Specifications Coolant Type: BMW approved coolant or equivalent (ethylene glycol-based, refer to manual for concentration and part number) Brake Fluid Specification: DOT 4 (refer to manual for specific BMW fluid recommendation) Known Issues Common Problems: Occasional electrical gremlins, wear on CVT components, potential issues with the safety cage locking mechanism (specific troubleshooting...