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.
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.
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.
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
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
Depth:
Comprehensive coverage from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.
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
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 Delivery:
Fuel Injection (EFI) or Carburetor (specific system to be confirmed in manual)
Fuel Type:
Unleaded gasoline (RON 95 recommended)
Oil Type:
Synthetic or semi-synthetic motorcycle oil, SAE 10W-40 or 15W-50 (refer to manual for exact BMW specification)
Spark Plug:
NGK CR8E or equivalent (to be confirmed in manual)
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)
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)
Rollover Protection:
Integral safety cage with crumple zones, exceeding automotive crash standards for its class.
Brakes:
Disc brakes front and rear, ABS optional on some models
Lighting:
Halogen headlights, integrated LED taillights and indicators
Seatbelt:
Integrated 4-point safety harness
Windscreen:
Integrated windscreen with optional wiper system
Dashboard:
Digital and analog gauges for speed, RPM, fuel level, temperature, and warning lights.
ABS:
Anti-lock Braking System (ABS) was an optional feature on certain models, providing enhanced braking control.
Electrical System Complexity:
Features an integrated electrical system managing lighting, ignition, instrumentation, and optional accessories, detailed thoroughly in the manual.
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)
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)
Common Problems:
Occasional electrical gremlins, wear on CVT components, potential issues with the safety cage locking mechanism (specific troubleshooting in manual).
Engine Oil Drain Plug:
Approx. 25 Nm (refer to manual for exact torque value)
Wheel Axle Nut:
Refer to manual for specific torque values
Brand Focus:
BMW, renowned for its automotive engineering and premium motorcycles, ventured into this unique urban commuter segment with the C1, leveraging its reputation for safety and innovation.
Development Context:
The C1 was developed in response to increasing urban congestion and a desire for safer, more enclosed personal transport solutions. It was initially launched in Europe.
Production Period:
Produced from 2000 to 2003.
Manufacturing Location:
Italy (under license by Bertone).
