The Vauxhall Astra Mk V CC 1.7 CDTi, produced between 2004 and 2009, represented an entry-level diesel option within the broader Astra Mk V (H) range. Positioned as a fuel-efficient and affordable variant, it catered to buyers prioritizing economy over outright performance. The “CC” designation signifies the coupe-cabriolet body style, though this model was primarily available as a five-door hatchback. This particular engine and transmission combination – the 1.7-liter turbodiesel paired with a five-speed manual gearbox – was a significant seller in the European market, particularly in countries with higher diesel fuel taxes and incentives. It was built on the GM Delta platform, shared with other models like the Opel Astra and Chevrolet Astra.
Technical Specifications
| Brand | Vauxhall |
| Model | Astra |
| Generation | Astra Mk V CC |
| Type (Engine) | 1.7 CDTi (80 Hp) |
| Start of production | 2004 |
| End of production | 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 6.5 l/100 km (36.2 US mpg, 43.5 UK mpg, 15.4 km/l) |
| Fuel consumption (extra urban) | 4.3 l/100 km (54.7 US mpg, 65.7 UK mpg, 23.3 km/l) |
| Fuel consumption (combined) | 5.1 l/100 km (46.1 US mpg, 55.4 UK mpg, 19.6 km/l) |
| CO2 emissions | 132 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 11.5 sec |
| Acceleration 0 – 62 mph | 11.5 sec |
| Acceleration 0 – 60 mph | 10.9 sec |
| Maximum speed | 180 km/h (111.85 mph) |
| Weight-to-power ratio | 15.8 kg/Hp, 63.5 Hp/tonne |
| Weight-to-torque ratio | 7.5 kg/Nm, 134.1 Nm/tonne |
| Power | 80 Hp @ 4400 rpm |
| Power per litre | 47.4 Hp/l |
| Torque | 169 Nm @ 1800 rpm (124.65 lb.-ft. @ 1800 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | Z17DTL |
| Engine displacement | 1686 cm3 (102.89 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 79 mm (3.11 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 18.4:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 4.5 l (4.76 US qt | 3.96 UK qt) |
| Coolant | 6.8 l (7.19 US qt | 5.98 UK qt) |
| Kerb Weight | 1260 kg (2777.82 lbs.) |
| Max. weight | 1810 kg (3990.37 lbs.) |
| Max load | 550 kg (1212.54 lbs.) |
| Trunk (boot) space – minimum | 350 l (12.36 cu. ft.) |
| Trunk (boot) space – maximum | 1270 l (44.85 cu. ft.) |
| Fuel tank capacity | 52 l (13.74 US gal | 11.44 UK gal) |
| Length | 4249 mm (167.28 in.) |
| Width | 1753 mm (69.02 in.) |
| Width including mirrors | 2033 mm (80.04 in.) |
| Height | 1467 mm (57.76 in.) |
| Wheelbase | 2614 mm (102.91 in.) |
| Front track | 1488 mm (58.58 in.) |
| Rear (Back) track | 1488 mm (58.58 in.) |
| Ride height (ground clearance) | 140 mm (5.51 in.) |
| Drag coefficient (Cd) | 0.32 |
| 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 brakes | Ventilated discs |
| Rear brakes | Disc |
| Tires size | 195/65 R15 |
| Wheel rims size | 15 |
Powertrain & Engine Architecture
The heart of this Astra variant is the Z17DTL engine, a 1.7-liter inline-four cylinder diesel. This engine belongs to the Isuzu-derived family of diesel engines used extensively by General Motors in Europe. It features a common rail direct injection system, delivering fuel at extremely high pressure for improved combustion efficiency and reduced emissions. A turbocharger with an intercooler is employed to boost power output, overcoming the inherent limitations of a relatively small displacement engine. The engine utilizes four valves per cylinder and a single overhead camshaft. The five-speed manual transmission, a standard offering, was chosen for its simplicity and efficiency, complementing the engine’s torque characteristics. The gear ratios were fairly conventional, prioritizing fuel economy over rapid acceleration.
Driving Characteristics
The 1.7 CDTi with the manual transmission offered a practical, if not exhilarating, driving experience. With 80 horsepower, acceleration was modest, taking around 11.5 seconds to reach 62 mph. However, the 169 Nm (124.65 lb-ft) of torque, available from a low 1800 rpm, provided adequate pulling power for everyday driving and overtaking maneuvers. The gear ratios were spaced to maximize fuel efficiency, meaning the engine often needed to be revved to maintain speed on inclines. Compared to the more powerful 1.9 CDTi variants, this engine felt noticeably less responsive, but it offered a smoother and more refined driving experience, particularly at lower speeds. The manual transmission allowed for greater driver control compared to the optional automatic.
Equipment & Trim Levels
The 1.7 CDTi typically occupied the entry-level position in the Astra Mk V range. Standard equipment generally included power steering, central locking, electric front windows, and an AM/FM radio. Safety features such as ABS brakes and driver/passenger airbags were also standard. Interior upholstery was typically cloth, and the dashboard featured a functional, if somewhat basic, design. Optional extras included air conditioning, alloy wheels, a CD player, and upgraded interior trim. Higher trim levels, such as Design or Sport, added features like climate control, rear electric windows, and more stylish interior appointments.
Chassis & Braking
The Astra Mk V CC 1.7 CDTi utilized a MacPherson strut front suspension and a torsion beam rear suspension. This setup provided a reasonable balance between ride comfort and handling. The front brakes were ventilated discs, offering good stopping power, while the rear brakes were solid discs. The 195/65 R15 tires provided adequate grip for most driving conditions. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The Astra Mk V 1.7 CDTi was well-received by consumers seeking an economical and reliable hatchback. Critics praised its fuel efficiency and low running costs, but noted its lack of outright performance. Compared to the 1.9 CDTi models, the 1.7 CDTi offered significantly lower fuel consumption but at the expense of acceleration and overall refinement. The 1.8-liter petrol variants provided more power but were less fuel-efficient. The 1.7 CDTi proved to be a popular choice for fleet buyers and private individuals alike.
Legacy
The Z17DTL engine, while not known for being particularly high-performance, proved to be a durable and reliable unit. Many examples are still on the road today, testament to its robust construction. However, like all diesel engines, it is susceptible to issues related to the fuel injection system and turbocharger. In the used car market, the Astra Mk V 1.7 CDTi remains an affordable option for buyers seeking a practical and economical hatchback. Its reputation for reliability and low running costs continues to make it a popular choice.
