🏷️ Basic Information

Make:

BMW

Model:

C1

Model Codes:

E20

👋 Introduction

Market Position:

The BMW C1 was a unique microcar or scooter-car that offered a protected, enclosed riding experience, targeting urban commuters seeking an alternative to traditional motorcycles and cars.

Competitive Analysis:

Competed against other enclosed scooters and microcars, aiming to bridge the gap between two-wheeled practicality and four-wheeled comfort and safety. Its distinctive safety cell and roll cage design set it apart.

Key Features:

Enclosed chassis with safety cell, automotive-style steering wheel, ABS braking system, and a unique design emphasizing urban agility and safety.

📋 Manual Details

Coverage Areas:

Complete workshop service and repair procedures for the BMW C1.

Page Count:

Estimated 500+ pages (typical for comprehensive BMW workshop manuals).

Manual Type:

Workshop Service/Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Systems Covered:

Engine (all variants), Drivetrain, Transmission (automatic and manual), Suspension (front and rear), Steering system, Braking system (including ABS), Fuel system, Cooling system, Exhaust system, Electrical system (including wiring diagrams, lighting, ignition, starting), HVAC (heating, ventilation, and air conditioning), Body and chassis, Interior trim, Diagnostic procedures, Body control modules (BCM), Powertrain control modules (PCM).

Bodywork And Chassis:

Includes procedures for body panel removal/installation, frame alignment checks, interior component repairs, and cosmetic restoration.

Procedures Included:

Scheduled maintenance, Routine checks, Troubleshooting guides, Step-by-step repair instructions, Component removal and installation, Overhaul procedures, Component testing, Diagnostic fault code interpretation, Electrical component testing, Wheel alignment specifications, Torque specifications for all fasteners, Fluid and lubricant specifications, Special tool requirements, Component identification.

Troubleshooting Diagnostics:

Detailed symptom-based troubleshooting charts, diagnostic fault code (DTC) explanations, and procedures for using BMW diagnostic tools (e.g., DIS or ISTA).

Technical Depth:

Comprehensive, covering basic to advanced repairs and diagnostics, suitable for professional technicians and experienced DIY enthusiasts. Includes detailed schematics and exploded views.

Electrical Diagrams:

Includes comprehensive wiring diagrams, component location charts, and troubleshooting flowcharts for all electrical systems.

📊 Manual Specifications

File Format:

Searchable PDF, printable pages, bookmark functionality.

Print Quality:

High-resolution scans ensuring clarity of text, diagrams, and illustrations.

Binding Type:

N/A (Digital PDF format).

Paper Type:

N/A (Digital PDF format).

⚙️ Engine Specifications

Primary Engine:

163 cc single-cylinder, four-stroke, liquid-cooled engine (Rotax).

Performance:

Approx. 15 hp (11 kW) at 7,000 rpm. Torque figures typically around 17 Nm at 5,000 rpm.

Fuel System:

Electronic fuel injection (Bosch Motronic or similar).

Emission Control:

Catalytic converter for emissions compliance.

Cooling System:

Liquid-cooled.

Bore X Stroke:

Refer to manual for precise specifications, but typically around 60.0 mm x 64.5 mm for this engine size.

Compression Ratio:

Approximately 11.0:1.

Valve Train:

SOHC (Single Overhead Camshaft), 4 valves per cylinder.

Fuel Type:

Unleaded gasoline.

🔧 Transmission

Transmission:

Automatic CVT (Continuously Variable Transmission).

Optional Transmission:

N/A (CVT was standard).

Features:

Smooth and efficient power delivery optimized for urban driving.

Transmission Fluid Type:

Specific CVT fluid (refer to manual for BMW part number/specification).

Gear Ratios:

Continuously variable, specific ratios are managed by the CVT unit and not fixed.

📐 Dimensions

Length:

Approx. 2,060 mm.

Width:

Approx. 1,270 mm.

Height:

Approx. 1,600 mm.

Track Width Front:

Approx. 1,120 mm.

Track Width Rear:

Approx. 1,080 mm.

Curb Weight:

Approx. 270 kg.

Gross Vehicle Weight:

Approx. 450 kg.

Front Axle Load Limit:

Refer to manual for specific GVW distribution.

Cargo Capacity:

Limited, with a small storage compartment behind the seat.

Wheelbase:

Approx. 1,450 mm.

🛡️ Safety Features

Safety Ratings:

Designed with a focus on safety for its class, featuring a unique safety cage structure similar to a roll cage.

Active Safety Features:

Anti-lock Braking System (ABS) on front wheel.

Braking System Type:

Hydraulic disc front, drum rear (with ABS on front).

Passive Safety Features:

Integrated safety cell, padded interior, seatbelt (often a 4-point harness), deformable steering column.

Seatbelt Type:

Four-point harness.

Lighting System:

Headlights, taillights, brake lights, turn signals conforming to automotive standards.

💡 Technology Features

Infotainment System:

Basic instrumentation, likely including speedometer, odometer, fuel gauge, and warning lights. Some models may have had accessory radios.

Dashboard Layout:

Automotive-style dashboard with central instrument cluster and controls.

Driver Assistance Features:

ABS (Anti-lock Braking System) on the front wheel is a key driver assistance feature.

Connectivity:

N/A (No advanced connectivity features expected for the era and vehicle type).

🔧 Maintenance

Service Intervals:

Typical intervals for oil changes: 5,000-10,000 km. More comprehensive inspections typically every 10,000-20,000 km. The manual provides detailed recommended intervals for all service items.

Spark Plug Replacement:

Intervals typically every 20,000-30,000 km, depending on usage and spark plug type. Consult manual for specific recommendations.

Engine Oil Specification:

BMW recommends specific synthetic engine oils (e.g., SAE 5W-40 or 10W-40) meeting API SG/SH or higher, and JASO MA standards. Consult manual for precise BMW LL-XX specification.

Coolant Specification:

BMW approved coolant/antifreeze concentrate mixed with distilled water (typically 50/50 ratio).

Brake Fluid Specification:

DOT 4 brake fluid.

Gearbox Oil Specification:

N/A (CVT transmission uses specialized CVT fluid).

Clutch Fluid Specification:

N/A (CVT transmission does not have a clutch in the traditional sense).

Final Drive Oil Specification:

Specific gear oil for the final drive unit (refer to manual for BMW part number/specification).

Known Issues:

Potential issues can include wear on CVT components, electrical system quirks, and standard engine wear. The manual covers troubleshooting for these and other common problems.

Oil Filter Part Number:

Refer to manual for specific BMW or compatible aftermarket part numbers (e.g., Mann-Filter MW 63, Mahle OX 77D).

Air Filter Part Number:

Refer to manual for specific BMW or compatible aftermarket part numbers (e.g., Mann-Filter C 20 318).

📚 Vehicle History

Brand Heritage:

BMW is renowned for its premium motorcycles and automobiles, emphasizing performance, engineering, and innovation. The C1 represents a venture into niche urban mobility solutions.

Model Evolution:

The BMW C1 was developed as a distinct concept in urban personal transport, aiming to provide a safer and more comfortable alternative to motorcycles. It saw development and production primarily in the early 2000s.

Design Philosophy:

To create a 'protected scooter' offering the agility of a scooter with the safety of a car.

Production Years:

Produced from 2000 to 2003.

Manufacturing Location:

Assembled in Italy.

🏆 Awards & Recognition

Recognitions:

While not typically winning mainstream automotive awards, the C1 was recognized for its innovative approach to urban mobility and safety within its niche category.

Ratings:

Subjective user ratings often highlighted its unique practicality and safety, though its unconventional nature limited widespread adoption.