Description:
The BMW C1 was a unique urban mobility scooter, designed with a strong emphasis on safety, featuring an integrated roll cage and seatbelt system, positioning it as a safer alternative to traditional scooters.
Competitors:
Competed indirectly with maxi-scooters and smaller capacity motorcycles, offering a distinct safety proposition.
Safety Cage:
Integrated safety cage and three-point seatbelt system for enhanced rider protection.
Windscreen:
Large windscreen providing excellent wind and weather protection.
Storage:
Under-seat storage compartment and optional rear storage box.
Engine:
Detailed disassembly, assembly, inspection, diagnosis, and repair of the entire engine powertrain.
Fuel System:
Fuel injection system, fuel pump, injectors, fuel lines, fuel tank, pressure regulator.
Ignition System:
Spark plugs, ignition coils, ECU control, timing.
Cooling System:
Radiator, fan, thermostat, coolant hoses, water pump.
Transmission Drivetrain:
CVT operation, belt, variator, clutch, final drive, lubrication.
Braking System:
Front and rear disc brakes, brake fluid, master cylinders, calipers, lines, ABS (if equipped).
Suspension:
Front telescopic forks, rear shock absorber, swingarm, bearings, lubrication.
Steering:
Handlebar, steering column, steering head bearings, adjustments.
Electrical System:
Battery, charging system (alternator/stator), starter motor, lighting (headlights, taillights, indicators), wiring diagrams, fuses, relays.
Body Chassis:
Frame, body panels, fairings, seat, storage compartment, integrated roll cage structure.
Exhaust System:
Exhaust manifold, muffler, catalytic converter (if applicable), hangers.
Wheels Tires:
Wheel bearing replacement, tire pressure, rim specifications, mounting.
Scheduled Maintenance:
Oil changes, filter replacements, spark plug checks, brake fluid flushes, coolant checks, drive belt inspection.
Troubleshooting:
Diagnostic charts, common problems and their solutions, error code interpretation.
Repair Procedures:
Step-by-step instructions for component removal, repair, and reinstallation.
Disassembly Assembly:
Complete breakdown and reassembly of major vehicle components and systems.
Adjustment Calibration:
Carburetor (if applicable) or fuel injection system adjustments, brake adjustments, suspension tuning.
Wiring Diagrams:
Detailed electrical schematics for all systems.
Torque Specifications:
Precise torque values for all critical fasteners.
Special Tools:
Identification and usage of specialized tools required for specific repairs.
Depth:
Comprehensive coverage from basic maintenance to complete engine and transmission overhauls.
Diagnostics:
In-depth diagnostic procedures for electrical and mechanical issues.
Rebuild Specifications:
Engine and transmission rebuild specifications, including clearances and tolerances.
Engine Type:
Four-stroke, single-cylinder, liquid-cooled
Displacement:
168.9 cc (for C1 180) / 176 cc (for C1 200)
Bore X Stroke:
67 mm x 46.2 mm (for C1 180)
Compression Ratio:
11.0:1
Horsepower:
Approx. 15 hp (11 kW) @ 7,500 rpm (for C1 180)
Torque:
Approx. 16 Nm @ 6,000 rpm (for C1 180)
Fuel Delivery:
Electronic Fuel Injection (EFI) - Bosch Motronic
Fuel Type:
Unleaded Gasoline (Octane Rating 91 or higher recommended)
ECU:
Engine Control Unit for fuel injection and ignition timing.
Crash Testing:
Designed to exceed typical scooter safety standards, incorporating automotive-like safety features.
ABS:
Optional Anti-lock Braking System (ABS) available on some models.
Braking System:
Disc brakes front and rear.
Roll Cage:
Integral safety cell/roll-over structure for rider protection.
Seatbelt:
Three-point safety seatbelt.
Windscreen:
Large, fixed windscreen providing substantial rider protection from elements.
Lighting:
Integrated headlights, taillights, and turn signals.
Oil Change Interval:
Every 5,000 - 10,000 km or annually, whichever comes first (refer to manual for exact recommendation).
Air Filter Replacement:
Every 10,000 km or as needed based on operating conditions.
Spark Plug Replacement:
Every 10,000 - 15,000 km.
Brake Fluid Flush:
Every 2 years or as per manual recommendations.
Coolant Flush:
Every 2 years or as per manual recommendations.
Drive Belt Inspection:
Regular inspection for wear and tear, replacement typically around 20,000-30,000 km.
Engine Oil Type:
SAE 10W-40, API SG or higher, JASO MA certified (e.g., BMW Motorrad Advanced 4-T Engine Oil)
Engine Oil Capacity:
Approx. 1.4 Liters (with oil filter change)
Coolant Type:
BMW Motorrad Coolant (Ethylene Glycol based, with corrosion inhibitors)
Electrical Connections:
Corrosion in electrical connectors and wiring loom due to exposure.
Fuel Pump:
Occasional fuel pump failures.
Variator Belt:
Wear on the CVT belt leading to performance degradation.