Unleaded gasoline (Premium recommended for turbocharged models)
Cooling System
Cooling Method:
Water-cooled, pressurized system
Lubrication
Oil Capacity:
Approximately 3.0 - 3.5 Liters with filter (Consult manual for precise capacity)
Maintenance
Spark Plug Type:
NGK DF7HA-11, Denso VK20 (Example, consult manual for exact type and gap)
🔧 Transmission
Standard
Transmission Type Standard:
5-speed Manual Transmission
Optional
Transmission Type Optional:
4-speed Automatic Transmission
Features
Transmission Fluid Type:
Dexron III equivalent or specified Daihatsu ATF (Consult manual for exact specification)
Differential Type:
Limited Slip Differential (LSD) optional on some performance variants
📐 Dimensions
Exterior
Length:
3,395 mm (133.7 in)
Width:
1,475 mm (58.1 in)
Height:
1,245 mm (49.0 in)
Wheelbase:
2,230 mm (87.8 in)
Ground Clearance:
Approx. 130 mm (5.1 in)
Weights
Curb Weight:
Approximately 850 - 900 kg (1,874 - 1,984 lb)
Gross Vehicle Weight Rating:
Not specified, typically higher than curb weight
Towing Capacity:
Not applicable/specified
Interior
Seating Capacity:
2
🛡️ Safety Features
Ratings
Crash Test Results:
Limited official crash test data available for this model, especially from global agencies.
Active Features
Braking System:
Front Ventilated Disc Brakes, Rear Disc Brakes (typically)
ABS:
Anti-lock Braking System (ABS) likely standard or optional depending on trim
Traction Control:
Traction Control System (TCS) may be available on certain models
Passive Features
Airbags:
Driver and Passenger Airbags
Rollover Protection:
Reinforced A-pillars and roll-bar behind seats (integrated into convertible roof mechanism)
💡 Technology Features
Infotainment
Audio System:
Factory fitted radio with CD player, speakers (typically 4)
Air Conditioning:
Standard or optional climate control system
Driver Assistance
Instrument Cluster:
Analog gauges for speedometer, tachometer, fuel, and temperature. Warning lights for various systems.
Connectivity
Exterior Lighting:
Halogen headlights, front fog lights (optional), LED taillights (on later models)
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 5,000 - 10,000 km or 6-12 months (Refer to manual for specific interval based on driving conditions)
Air Filter Replacement:
Every 20,000 - 30,000 km or as needed based on inspection
Spark Plug Replacement:
Every 40,000 - 100,000 km depending on type (Iridium plugs have longer life)
Timing Belt Replacement:
If equipped with a timing belt, typically around 100,000 km or 5-7 years (K6A typically uses a timing chain)
Fluid Specifications
Engine Oil Specification:
API SL/SM, Viscosity 5W-30 or 10W-30 (Consult manual for exact API and viscosity grades)
Coolant Specification:
Ethylene glycol based coolant, 50/50 mix with distilled water
Brake Fluid Specification:
DOT 3 or DOT 4
Known Issues
Common Issues Overview:
Potential for wear on convertible roof mechanisms, turbocharger issues if not maintained, electrical gremlins in older vehicles, suspension wear due to sporty nature.
Turbo Lag:
Characteristic of small turbocharged engines, can be mitigated by proper maintenance and driving style.
Convertible Top Leaks:
Seals can degrade over time, requiring adjustment or replacement.
📚 Vehicle History
Brand Heritage
Brand Focus:
Daihatsu specializes in small, fuel-efficient vehicles, often referred to as Kei cars in Japan.
Model Evolution
Introduction Year:
2002
Facelifts:
Minor updates and trim revisions throughout its production run.
Production
Manufacturing Location:
Japan
Production Period:
2002 - 2012 (First Generation)
🏆 Awards & Recognition
Recognitions
Awards Received:
While specific major awards are not widely publicized for the 2005 Copen, it was recognized for its niche appeal as a compact, affordable sports convertible.
Ratings
Consumer Ratings:
Generally positive for its segment, praised for fun factor and unique design, with typical critiques related to its small size and engine power.