The Mitsubishi Colt VI (Z30) 1.5 DI-D CZ3, produced from May 2005 to December 2007, represented an entry-level diesel offering within the broader sixth-generation Colt lineup. Positioned as a fuel-efficient and economical option, this variant catered to buyers seeking a practical and affordable hatchback. The Z30 Colt, built on the Mitsubishi’s global platform, aimed to compete in the highly contested European supermini segment, offering a blend of compact dimensions, reasonable performance, and modern features for its time. This specific 68 horsepower diesel version was primarily marketed in Europe, where demand for small, economical diesel cars was particularly strong.
Technical Specifications
| Brand | Mitsubishi |
| Model | Colt |
| Generation | Colt VI (Z30) |
| Type (Engine) | 1.5 DI-D CZ3 (68 Hp) |
| Start of production | May, 2005 |
| End of production | December, 2007 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 3 |
| Fuel consumption (urban) | 6.3 l/100 km (37.3 US mpg, 44.8 UK mpg, 15.9 km/l) |
| Fuel consumption (extra urban) | 4.1 l/100 km (57.4 US mpg, 68.9 UK mpg, 24.4 km/l) |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 14.4 sec |
| Acceleration 0 – 62 mph | 14.4 sec |
| Acceleration 0 – 60 mph | 13.7 sec |
| Maximum speed | 160 km/h (99.42 mph) |
| Weight-to-power ratio | 15.2 kg/Hp, 65.7 Hp/tonne |
| Weight-to-torque ratio | 6.5 kg/Nm, 154.6 Nm/tonne |
| Power | 68 Hp @ 4000 rpm |
| Power per litre | 45.5 Hp/l |
| Torque | 160 Nm @ 1600 rpm (118.01 lb.-ft. @ 1600 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | OM 639.939 |
| Engine displacement | 1493 cm3 (91.11 cu. in.) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Cylinder Bore | 83 mm (3.27 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 18:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.5 l (5.81 US qt | 4.84 UK qt) |
| Coolant | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Kerb Weight | 1035 kg (2281.78 lbs.) |
| Max. weight | 1545 kg (3406.14 lbs.) |
| Max load | 510 kg (1124.36 lbs.) |
| Trunk (boot) space – minimum | 155 l (5.47 cu. ft.) |
| Trunk (boot) space – maximum | 760 l (26.84 cu. ft.) |
| Fuel tank capacity | 47 l (12.42 US gal | 10.34 UK gal) |
| Length | 3810 mm (150 in.) |
| Width | 1695 mm (66.73 in.) |
| Height | 1520 mm (59.84 in.) |
| Wheelbase | 2500 mm (98.43 in.) |
| Front track | 1450 mm (57.09 in.) |
| Rear (Back) track | 1445 mm (56.89 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Spring Strut |
| Rear suspension | Torsion |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 175/65 R14 |
Powertrain & Engine Architecture
The heart of the Colt VI 1.5 DI-D CZ3 is the OM 639.939, a 1.5-liter inline-three cylinder diesel engine. This engine, developed in collaboration with DaimlerChrysler, utilizes a common rail direct injection system to deliver fuel directly into the combustion chamber at extremely high pressure. This technology, combined with a turbocharger and intercooler, allows for improved fuel efficiency and torque output despite the relatively small displacement. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for enhanced performance. The engine’s 18:1 compression ratio is typical for a diesel engine, contributing to its efficiency. The five-speed manual transmission was the only gearbox option available with this engine, prioritizing fuel economy over outright performance.
Driving Characteristics
The 1.5 DI-D CZ3 offered a practical, if not particularly exhilarating, driving experience. With 68 horsepower and 160 Nm (118 lb-ft) of torque, acceleration was modest, taking approximately 14.4 seconds to reach 62 mph. However, the engine’s peak torque was available from a low 1600 rpm, providing adequate pulling power for everyday driving situations. The five-speed manual transmission was well-matched to the engine’s characteristics, allowing drivers to keep the engine in its optimal power band. Compared to higher-output Colt variants, such as those equipped with larger gasoline engines, the 1.5 DI-D prioritized fuel economy and low-speed drivability over outright speed. The gear ratios were tuned for efficiency, resulting in a slightly less responsive feel at higher speeds.
Equipment & Trim Levels
The 1.5 DI-D CZ3 typically came equipped with a basic but functional set of features. Standard equipment generally included power steering, ABS brakes, front airbags, and a basic audio system. Interior upholstery was typically cloth, and the dashboard featured a straightforward design. Optional extras, depending on the market, could include air conditioning, alloy wheels, and electric windows. This trim level was positioned as the entry point into the Colt diesel range, appealing to budget-conscious buyers. It lacked the more luxurious appointments found in higher-spec Colt models.
Chassis & Braking
The Colt VI utilized a relatively simple chassis design. Front suspension consisted of MacPherson strut springs, while the rear employed a torsion beam setup. This configuration provided a reasonable balance between ride comfort and handling. The front brakes were ventilated discs, offering adequate stopping power, while the rear brakes were solid discs. The electric power steering provided light and easy steering, making it well-suited for urban driving. The relatively lightweight construction of the Colt, with a kerb weight of around 1035 kg (2282 lbs), helped to offset the modest engine output.
Market Reception & Comparison
The Mitsubishi Colt VI 1.5 DI-D CZ3 was generally well-received by critics as a practical and economical city car. Its fuel efficiency was a major selling point, particularly in Europe where diesel fuel was often cheaper than gasoline. Compared to other superminis in its class, such as the Ford Fiesta or Volkswagen Polo, the Colt offered a competitive price point and a decent level of equipment. However, some reviewers noted that the engine was somewhat noisy and lacked the refinement of some of its rivals. Reliability was generally considered good, although the diesel particulate filter (DPF) could be a potential source of issues if the vehicle was primarily used for short trips.
Legacy
The Mitsubishi Colt VI 1.5 DI-D CZ3 remains a relatively common sight on European roads today. The OM 639 engine, while not known for being particularly powerful, has proven to be reasonably durable and reliable with proper maintenance. Used examples are typically affordable, making them an attractive option for first-time car buyers or those seeking a cheap and economical runabout. The 1.5 DI-D engine’s fuel efficiency continues to be a major draw for buyers in the used car market. However, potential buyers should be aware of the potential for DPF issues and ensure that the vehicle has been properly maintained.
