The Opel Astra J Sedan 1.7 CDTI (130 hp) Ecotec represents a significant iteration within the broader Astra J Sedan range, produced between 2012 and 2014. Positioned as a fuel-efficient and practical option, this variant aimed to balance performance with economy, catering to a market segment prioritizing lower running costs. It was part of the J series, built on the GM Delta II platform, and offered as a four-door sedan body style, a configuration particularly popular in markets outside of Western Europe where hatchbacks held less appeal. This model aimed to provide a competitive offering in the compact sedan class, facing rivals like the Ford Focus, Volkswagen Jetta, and Peugeot 308.
Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra J Sedan |
| Type (Engine) | 1.7 CDTI (130 Hp) Ecotec |
| Start of production | 2012 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5.6 l/100 km (42 US mpg, 50.4 UK mpg, 17.9 km/l) |
| Fuel consumption (extra urban) | 4 l/100 km (58.8 US mpg, 70.6 UK mpg, 25 km/l) |
| Fuel consumption (combined) | 4.6 l/100 km (51.1 US mpg, 61.4 UK mpg, 21.7 km/l) |
| CO2 emissions | 119 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.8 sec |
| Acceleration 0 – 62 mph | 10.8 sec |
| Acceleration 0 – 60 mph | 10.3 sec |
| Maximum speed | 203 km/h (126.14 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 10.8 kg/Hp, 92.5 Hp/tonne |
| Weight-to-torque ratio | 4.7 kg/Nm, 213.5 Nm/tonne |
| Power | 130 Hp @ 4000 rpm |
| Power per litre | 77.1 Hp/l |
| Torque | 300 Nm @ 2000-2700 rpm (221.27 lb.-ft. @ 2000-2700 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | A17DTS |
| 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.) |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.4 l (5.71 US qt | 4.75 UK qt) |
| Coolant | 7.1 l (7.5 US qt | 6.25 UK qt) |
| Kerb Weight | 1405 kg (3097.49 lbs.) |
| Max. weight | 1895 kg (4177.76 lbs.) |
| Max load | 490 kg (1080.27 lbs.) |
| Trunk (boot) space – minimum | 460 l (16.24 cu. ft.) |
| Trunk (boot) space – maximum | 1010 l (35.67 cu. ft.) |
| Fuel tank capacity | 56 l (14.79 US gal | 12.32 UK gal) |
| Length | 4658 mm (183.39 in.) |
| Width | 1814 mm (71.42 in.) |
| Width including mirrors | 2013 mm (79.25 in.) |
| Height | 1500 mm (59.06 in.) |
| Wheelbase | 2685 mm (105.71 in.) |
| Front track | 1541 mm (60.67 in.) |
| Rear (Back) track | 1551 mm (61.06 in.) |
| Front overhang | 974 mm (38.35 in.) |
| Rear overhang | 999 mm (39.33 in.) |
| Minimum turning circle | 11.5 m (37.73 ft.) |
| Drivetrain Architecture | ICE to Front Wheels |
| Drive wheel | Front wheel drive |
| Number of gears | 6 |
| Gearbox type | Manual transmission |
| Front brakes | Ventilated discs |
| Assisting systems | ABS |
| Steering type | Steering rack and pinion |
| Power steering | Electric |
Powertrain & Engine Architecture
At the heart of the Astra J Sedan 1.7 CDTI lies the A17DTS engine, a 1.7-liter inline-four cylinder diesel. This engine is a member of Opel/Fiat’s family of small-displacement diesel engines, known for its relatively compact size and efficiency. The A17DTS utilizes a common rail direct injection system, delivering fuel directly into the combustion chamber at extremely high pressure. This, combined with a turbocharger and intercooler, allows for a good balance of power and fuel economy. The engine produces 130 horsepower at 4000 rpm and 300 Nm (221 lb-ft) of torque between 2000 and 2700 rpm. The engine features four valves per cylinder and a single overhead camshaft. The 6-speed manual transmission was the standard offering, providing a good spread of gears for both urban and highway driving.
Driving Characteristics
The 1.7 CDTI with the manual transmission offered a practical and economical driving experience. Acceleration from 0-60 mph took around 10.3 seconds, which was adequate for everyday driving but didn’t offer particularly sporty performance. The engine’s torque peak, available from 2000 rpm, provided sufficient pulling power for overtaking and climbing hills. The gear ratios were well-chosen to maximize fuel efficiency, with a taller sixth gear for relaxed cruising on the highway. Compared to higher-output versions of the Astra J, such as those equipped with the 2.0 CDTI engine, the 1.7 CDTI felt less responsive and required more gear changes to maintain speed. However, it offered significantly better fuel economy and lower running costs.
Equipment & Trim Levels
The Astra J Sedan 1.7 CDTI typically came with a reasonable level of standard equipment. This included air conditioning, electric front windows, a CD/MP3 stereo system, and ABS brakes. Higher trim levels, such as the ‘Enjoy’ and ‘Cosmo’ variants, added features like alloy wheels, cruise control, automatic climate control, and a more sophisticated infotainment system. Interior upholstery was typically cloth, with options for leather available on higher trims. Optional extras included parking sensors, a sunroof, and a navigation system.
Chassis & Braking
The Astra J Sedan featured a MacPherson strut front suspension and a torsion beam rear suspension. This setup provided a comfortable ride quality, although it wasn’t particularly sporty. The front brakes were ventilated discs, while the rear brakes were typically solid discs. ABS (Anti-lock Braking System) was standard, providing enhanced braking performance and stability. The steering was electrically assisted, offering a light and precise feel.
Market Reception & Comparison
The Opel Astra J Sedan 1.7 CDTI was generally well-received by critics for its fuel efficiency and practicality. It was seen as a sensible choice for drivers prioritizing low running costs. However, some reviewers criticized its lack of outright performance compared to rivals. In terms of fuel economy, the 1.7 CDTI consistently outperformed larger-engined Astra J models, achieving combined fuel consumption figures of around 4.6 l/100 km (51.1 US mpg). Reliability was generally good, although some owners reported issues with the diesel particulate filter (DPF) system, a common problem with modern diesel engines.
Legacy
The Opel Astra J Sedan 1.7 CDTI remains a relatively common sight on used car markets today. Its reputation for fuel efficiency and reliability has made it a popular choice for budget-conscious buyers. The A17DTS engine, while not known for being particularly exciting, has proven to be a durable and long-lasting unit when properly maintained. However, potential buyers should be aware of the potential for DPF issues and ensure that the vehicle has been regularly serviced. The Astra J Sedan 1.7 CDTI represents a practical and economical option in the compact sedan segment, offering a good balance of features and running costs.
