Segment:
A-segment city car
Key Competitors:
Toyota Aygo, Peugeot 107, Fiat Panda, Volkswagen Fox, Hyundai i10.
Design Philosophy:
Compact, fuel-efficient, affordable, urban-friendly city car with a focus on maneuverability and low running costs. The C1 is a product of the PSA Peugeot Citroën and Toyota joint venture.
Unique Selling Points:
Characterized by its distinctive front-end styling, compact dimensions ideal for city driving, and the efficient 1.0L Toyota-sourced engine.
Powertrain:
Engine mechanicals, fuel system, ignition system, exhaust system, lubrication system, cooling system, MMT transmission (automated manual), clutch, differentials.
Chassis:
Suspension (front and rear), steering system, braking system (ABS, EBD), wheels, tires.
Electrical:
Battery, charging system, starting system, lighting (headlights, taillights, interior), instrument cluster, engine control unit (ECU), Body Control Module (BCM), infotainment system, power windows, central locking, wipers, horn, airbags, climate control.
Body And Interior:
Body panels, doors, bumpers, hood, trunk, interior trim, seats, dashboard, HVAC system.
Maintenance:
Scheduled maintenance, oil and filter changes, fluid level checks and top-ups, spark plug replacement, air filter replacement, brake pad replacement, tire rotation.
Troubleshooting:
Diagnostic procedures for common faults, fault code interpretation, symptom-based troubleshooting guides, electrical circuit diagnosis.
Repair And Overhaul:
Engine disassembly and reassembly, cylinder head service, transmission overhaul, brake caliper rebuilding, suspension component replacement, electrical component repair.
Wiring And Schematics:
Complete electrical wiring diagrams for all systems, component location charts, connector pin-outs.
Depth:
Comprehensive: Covers everything from basic maintenance and routine servicing to advanced diagnostics, component overhaul, and complete vehicle repair. Includes detailed torque specifications, clearances, and alignment data.
Engine Type:
3-cylinder, 12-valve, DOHC, naturally aspirated petrol
Bore X Stroke:
71.0 mm x 84.0 mm
Compression Ratio:
10.5:1
Horsepower:
68 PS (67 bhp; 50 kW) at 6000 rpm
Torque:
93 Nm (69 lb-ft) at 3600 rpm
Fuel Delivery:
Electronic fuel injection (multi-point)
Fuel Type:
Unleaded Petrol (95 RON recommended)
Coolant Capacity:
Approx. 3.6 liters (including heater)
Oil Capacity:
Approx. 3.4 liters (with filter change)
Ignition Type:
Electronic ignition with distributorless ignition system (DIS) and coil-on-plug.
Type:
MMT (Manual-Methode de Transmission) - 5-speed automated manual transmission
Alternative Transmission:
5-speed Manual Transmission (available on other C1 variants)
Operation Modes:
Automatic and Manual Sequential shift modes
Clutch Type:
Single dry plate, hydraulically operated (actuated automatically)
Transmission Fluid:
Refer to manual for specific MMT fluid type (typically a specialized ATF or manual transmission fluid).
Euroncap Rating:
4 Stars (for 2005 model, based on standard safety equipment)
ABS:
Anti-lock Braking System (standard on most variants)
Ebs:
Electronic Brake-force Distribution (often paired with ABS)
Airbags:
Driver, passenger, side airbags (availability may vary by trim level)
Seatbelts:
Three-point seatbelts with pretensioners and load limiters (front), three-point seatbelts (rear)
Isofix Anchors:
ISOFIX child seat mounting points
Audio System:
Standard radio/CD player with 2 or 4 speakers. Optional RDS and MP3 compatibility.
Display:
Basic digital display for clock, radio, and trip computer. No central touch screen on this model year.
Cruise Control:
Not typically available on this model year.
Bluetooth:
Not standard. Optional aftermarket integration might be possible.
HVAC:
Manual air conditioning available as an option. Basic heating and ventilation as standard.
Oil Change Interval:
Typically 15,000 km (9,300 miles) or 12 months, whichever comes first. Consult the manual for precise intervals.
Air Filter Replacement:
Typically every 30,000 km (18,600 miles) or 24 months.
Spark Plug Replacement:
Typically every 60,000 km (37,200 miles) or 48 months, using specified iridium plugs.
Brake Fluid Change:
Typically every 24 months.
Coolant Change:
Initial change at 120,000 km (74,500 miles) or 60 months, then every 60,000 km (37,200 miles) or 36 months.
Engine Oil Grade:
0W-20 or 5W-30 (API SN/SP or ILSAC GF-5/GF-6 compatible).
Engine Oil Spec:
ACEA A1/B1 or A5/B5 recommended for fuel economy.
Coolant Type:
Long-life coolant (ethylene glycol based), typically purple or pink color. Refer to manual for specific PSA or Toyota specification.
Clutch Wear:
The MMT automated manual transmission can exhibit jerky operation and premature clutch wear if driven aggressively or not maintained properly. The clutch actuating mechanism can also be a point of failure.
Engine Oil Consumption:
Some early 1.0L engines might experience slight oil consumption over time. Regular checks are advised.
Catalytic Converter:
Can be susceptible to failure with prolonged misfires or excessive oil consumption.
Suspension Bushings:
Wear in front suspension bushings and anti-roll bar links can lead to knocking noises and degraded handling.
Exhaust Manifold Gasket:
Can sometimes leak, causing an exhaust fume smell in the cabin.
Citroen Legacy:
Citroën has a long history of producing innovative and compact city cars, with models like the 2CV and AX setting benchmarks for affordability and practicality.
First Generation:
The Citroën C1 was launched in 2005 as part of a joint venture with Toyota, sharing its platform and powertrain with the Toyota Aygo and Peugeot 107.
Manufacturing Location:
Kolín, Czech Republic (TPCA - Toyota Peugeot Citroën Automobile plant)
Production Period:
First generation: 2005–2014