The Opel Astra J (facelift, introduced in 2012) 1.7 CDTI (130 hp) Ecotec ecoFLEX start/stop represents a significant iteration within the Astra J generation, produced from 2009 to 2015. This variant, specifically available from 2012 to 2014, was positioned as a fuel-efficient and practical option within the Astra J lineup, targeting buyers seeking a balance between economy and reasonable performance. It was primarily sold in European markets, where Opel held a strong presence, and aimed to compete with similar diesel-powered hatchbacks from Volkswagen, Ford, and Peugeot.
Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra J (facelift 2012) |
| Type (Engine) | 1.7 CDTI (130 Hp) Ecotec ecoFLEX start/stop |
| Start of production | 2012 |
| End of production | 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 4.3 l/100 km (54.7 US mpg, 65.7 UK mpg, 23.3 km/l) |
| Fuel consumption (extra urban) | 3.4 l/100 km (69.2 US mpg, 83.1 UK mpg, 29.4 km/l) |
| Fuel consumption (combined) | 3.7 l/100 km (63.6 US mpg, 76.3 UK mpg, 27 km/l) |
| CO2 emissions | 99 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 11.2 sec |
| Acceleration 0 – 62 mph | 11.2 sec |
| Acceleration 0 – 60 mph | 10.6 sec |
| Maximum speed | 201 km/h (124.9 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 10.5 kg/Hp, 94.9 Hp/tonne |
| Weight-to-torque ratio | 4.6 kg/Nm, 219 Nm/tonne |
| Power | 130 Hp @ 4000 rpm |
| Power per litre | 77.1 Hp/l |
| Torque | 300 Nm @ 2000-2500 rpm (221.27 lb.-ft. @ 2000-2500 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | A17DTF |
| 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 | 1370 kg (3020.33 lbs.) |
| Max. weight | 1940 kg (4276.97 lbs.) |
| Max load | 570 kg (1256.63 lbs.) |
| Trunk (boot) space – minimum | 370 l (13.07 cu. ft.) |
| Trunk (boot) space – maximum | 1235 l (43.61 cu. ft.) |
| Fuel tank capacity | 56 l (14.79 US gal | 12.32 UK gal) |
| Max. roof load | 75 kg (165.35 lbs.) |
| Length | 4419 mm (173.98 in.) |
| Width | 1814 mm (71.42 in.) |
| Width with mirrors folded | 1831 mm (72.09 in.) |
| Width including mirrors | 2013 mm (79.25 in.) |
| Height | 1510 mm (59.45 in.) |
| Wheelbase | 2685 mm (105.71 in.) |
| Front track | 1541 mm (60.67 in.) |
| Rear (Back) track | 1551 mm (61.06 in.) |
| Minimum turning circle | 11.4 m (37.4 ft.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 6 |
| Gearbox type | Manual transmission |
| Front brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 205/60 R16 |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
At the heart of the Astra J 1.7 CDTI ecoFLEX lies the A17DTF engine, a 1.7-liter inline-four cylinder diesel. This engine is part of Opel/Vauxhall’s ‘Ecotec’ family, known for its focus on efficiency and reduced emissions. The A17DTF utilizes a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. A turbocharger with an intercooler is employed to boost power output and improve torque across a wider rev range. The engine also incorporates a diesel particulate filter (DPF) to minimize soot emissions, meeting Euro 5 standards. The Start/Stop system, a key feature of the ecoFLEX designation, automatically shuts off the engine when the vehicle is stationary (at traffic lights, for example) to further reduce fuel consumption and emissions. This variant was exclusively offered with a six-speed manual transmission, prioritizing fuel economy over outright performance.
Driving Characteristics
The 130 hp and 300 Nm (221 lb-ft) of torque provided by the A17DTF engine offered adequate, though not exhilarating, performance. Acceleration from 0-60 mph took around 10.6 seconds, and top speed was approximately 125 mph. The engine’s torque peak, available from 2000-2500 rpm, meant that the Astra J felt reasonably responsive in everyday driving situations, particularly for overtaking maneuvers. However, compared to higher-powered Astra J variants like the 1.6 Turbo or 2.0 CDTI, the 1.7 CDTI felt noticeably slower. The six-speed manual transmission was well-matched to the engine’s characteristics, offering smooth gear changes and helping to keep the engine within its optimal operating range. The focus was clearly on maximizing fuel efficiency, and the driving experience reflected this, prioritizing economy over sporty handling.
Equipment & Trim Levels
The 1.7 CDTI ecoFLEX typically came with a reasonable level of standard equipment. This included air conditioning, electric front windows, a CD/MP3 stereo system, and basic safety features like ABS, ESP (Electronic Stability Program), and multiple airbags. Higher trim levels, such as ‘Sport’ or ‘SE’, added features like alloy wheels, cruise control, automatic headlights and rain sensors, and upgraded interior trim. Interior upholstery was typically cloth, with options for more premium materials on higher-spec models. The dashboard layout was functional and straightforward, with a focus on ergonomics.
Chassis & Braking
The Astra J 1.7 CDTI utilized 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, providing adequate stopping power for the vehicle’s weight and performance. Electric power steering was standard, offering light and precise steering feel. The suspension was tuned for comfort and stability, rather than aggressive handling.
Market Reception & Comparison
The Astra J 1.7 CDTI ecoFLEX was generally well-received by critics for its impressive fuel economy and low running costs. It was seen as a practical and sensible choice for drivers who prioritized efficiency over performance. Compared to other Astra J variants, the 1.7 CDTI offered significantly better fuel economy than the petrol-powered models and was more affordable than the higher-output diesel versions. However, it lacked the performance and refinement of those more expensive trims. Competitors like the Volkswagen Golf 1.6 TDI and Ford Focus 1.6 TDCi offered similar levels of economy and practicality, making the Astra J 1.7 CDTI a competitive option in its segment.
Legacy
The A17DTF engine, while generally reliable, is known to require regular maintenance, particularly regarding the DPF and EGR (Exhaust Gas Recirculation) systems. Proper servicing and the use of quality diesel fuel are crucial to prevent issues. In the used car market, the Astra J 1.7 CDTI ecoFLEX remains a popular choice for budget-conscious buyers seeking a fuel-efficient and practical hatchback. Its relatively low running costs and decent reliability make it a sensible option, although potential buyers should be aware of the potential maintenance requirements associated with diesel engines and DPF systems.
