Niche:
The Daihatsu Copen is a niche, compact sports convertible, often appreciated for its unique styling and engaging driving experience.
Competitors 2006:
While unique, it competed in the small convertible segment with vehicles like the Mazda MX-5 Miata (though typically at a different price/performance point) and other kei-car-based specialty vehicles.
Convertible Type:
Features an electrically operated 'Active Top' retractable hardtop, a key selling point.
Design Philosophy:
Compact dimensions, sporty styling, and a focus on open-air driving enjoyment.
Engine:
Detailed diagnostics, repair, and overhaul for the 659cc turbocharged engine (JB-DET).
Transmission:
Service and repair procedures for both the 4-speed automatic and 5-speed manual transmissions.
Drivetrain:
Front-wheel drive system, including differential and drive shafts.
Brakes:
Front and rear brake system diagnostics, repair, caliper, rotor, and ABS system service.
Suspension:
Front MacPherson struts, rear torsion beam, shock absorbers, springs, and alignment procedures.
Steering:
Power steering system diagnosis, components, and rack and pinion service.
Electrical:
Complete wiring diagrams, component testing, ECU diagnostics, lighting, and accessory electrical systems.
Body:
Exterior body panels, convertible roof mechanism (Active Top), interior trim, and glass replacement.
HVAC:
Air conditioning and heating system service, refrigerant handling, and component repair.
Cooling System:
Radiator, cooling fan, thermostat, water pump, and coolant specifications.
Fuel System:
Fuel tank, fuel pump, injectors, fuel pressure, and emissions control systems.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plugs, and fluid checks.
Troubleshooting:
Diagnostic flowcharts and procedures for common and complex issues across all systems.
Repair:
Step-by-step instructions for component removal, installation, and overhaul.
Diagnostics:
Detailed guidance on using diagnostic tools (OBD-II), interpreting codes, and electrical testing.
Rebuild:
Comprehensive engine and transmission rebuild procedures with torque specifications and tolerances.
Depth:
Full technical coverage, suitable for professional technicians and advanced DIY enthusiasts.
Diagnostic Capabilities:
Includes detailed wiring diagrams, component testing methods, and ECU information.
Specifications:
Provides essential torque values, clearances, fluid capacities, and component tolerances.
Configuration:
Inline 4-cylinder
Aspiration:
Turbocharged and Intercooled
Bore X Stroke:
64.0 mm x 80.6 mm
Horsepower:
64 PS (47 kW; 63 bhp) at 6,400 rpm (JDM specification, may vary slightly for export markets)
Torque:
10.5 kg⋅m (103 N⋅m; 76 lb⋅ft) at 3,200 rpm (JDM specification)
Fuel Delivery:
Electronic Fuel Injection (EFI)
Recommended Fuel:
Premium Unleaded Gasoline (Octane rating typically 91 RON or higher)
Ignition System:
Electronic Ignition System
Transmission Type:
5-Speed Manual Transmission
Transmission Type:
4-Speed Automatic Transmission
Drivetrain Layout:
Front-engine, Front-wheel drive (FWD)
Manual Transmission Fluid:
GL-4 (e.g., SAE 75W-90)
Automatic Transmission Fluid:
Dexron III or equivalent (e.g., ATF Type T-III)
Crash Test Ratings:
Varies by market and testing organization. Often not tested by major US agencies due to its niche/kei-car origins.
ABS:
Anti-lock Braking System (ABS) typically standard.
Traction Control:
Traction Control System (TCS) often available or standard on certain trims.
Airbags:
Driver and passenger front airbags.
Roll Bar:
Integrated roll-over protection structure within the A-pillars and windshield frame.
Oil Change Interval:
Typically 5,000 km (3,000 miles) or 6 months, whichever comes first, for severe driving conditions.
Spark Plug Replacement:
Refer to manual for specific plug type and interval, typically around 30,000-50,000 km.
Timing Belt:
The JB-DET engine uses a timing chain, which typically does not require scheduled replacement unless issues arise.
Engine Oil Capacity:
Approx. 3.5 Liters (3.7 US quarts) with filter change.
Engine Oil Viscosity:
5W-30 or 10W-30 (API Service SL or higher).
Coolant Type:
Ethylene Glycol based coolant (e.g., Toyota Super Long Life Coolant or equivalent).
Turbo Wear:
Early turbocharger failure can occur if oil and filter maintenance is neglected.
Convertible Top Mechanism:
Hydraulic leaks or motor issues in the Active Top mechanism can occur with age and use.
Coil On Plug Ignition:
Ignition coil failure can lead to misfires.