Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra J |
| Type (Engine) | 1.4 (100 Hp) ecoFLEX |
| Start of production | 2009 |
| End of production | 2012 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 7.1 l/100 km (33.1 US mpg) |
| Fuel consumption (extra urban) | 4.6 l/100 km (51.1 US mpg) |
| Fuel consumption (combined) | 5.5 l/100 km (42.8 US mpg) |
| CO2 emissions | 129 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 14.2 sec |
| Acceleration 0 – 62 mph | 14.2 sec |
| Acceleration 0 – 60 mph | 13.5 sec |
| Maximum speed | 178 km/h (110.6 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 13 kg/Hp |
| Weight-to-torque ratio | 10 kg/Nm |
| Power | 100 Hp @ 6000 rpm |
| Torque | 130 Nm @ 4000 rpm (95.88 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | A14XER |
| Engine displacement | 1398 cm3 (85.31 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 73.4 mm (2.89 in.) |
| Piston Stroke | 82.6 mm (3.25 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated |
| Engine oil capacity | 3.75 l (3.96 US qt | 3.3 UK qt) |
| Coolant capacity | 6.2 l (6.55 US qt | 5.46 UK qt) |
| Kerb Weight | 1298 kg (2861.6 lbs.) |
| Max. weight | 1870 kg (4122.64 lbs.) |
| Max load | 572 kg (1261.04 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) |
| Length | 4419 mm (173.98 in.) |
| Width | 1814 mm (71.42 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 track | 1551 mm (61.06 in.) |
| Ride height (ground clearance) | 160 mm (6.3 in.) |
| Drag coefficient (Cd) | 0.31 |
| Minimum turning circle | 11.4 m (37.4 ft.) |
| Drivetrain | Front wheel drive |
| Number of gears | 5 |
| Gearbox type | Manual transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Steering type | Steering rack and pinion |
| Power steering | Electric |
| Tires size | 215/60 R16 |
| Wheel rims size | 16 |
The Opel Astra J 1.4 (100 hp) ecoFLEX, produced between 2009 and 2012, served as the entry-level model within the broader Astra J range (2009-2015). Built on the GM Delta II platform, this variant was specifically designed to offer affordable and fuel-efficient transportation primarily within the European market. The “ecoFLEX” designation highlighted Opel’s commitment to improving fuel economy and reducing emissions through a series of engineering refinements. It acted as an accessible entry point into the Astra J lineup, appealing to buyers who prioritized practicality and low running costs over outright performance.
Powertrain & Engine Architecture
The Astra J 1.4 ecoFLEX was powered by the A14XER engine, a 1.4-liter (1398 cc) inline-four cylinder gasoline engine. This engine employed multi-point fuel injection and a single overhead camshaft (SOHC) valvetrain with four valves per cylinder. Being naturally aspirated, it didn’t benefit from the added power of a turbocharger or supercharger. The ecoFLEX models incorporated several fuel-saving technologies, including optimized engine mapping, reduced friction components within the engine, and a slightly adjusted final drive ratio in the transmission. A five-speed manual transmission was standard, geared towards maximizing fuel efficiency rather than providing a sporty driving experience. The transmission’s gear ratios were taller, contributing to lower engine speeds at cruising speeds.
Driving Characteristics
With 100 horsepower and 130 Nm (95.88 lb.-ft.) of torque, the Astra J 1.4 ecoFLEX delivered modest performance. Acceleration from 0-60 mph took approximately 13.5 seconds, and its top speed was limited to 110.6 mph. In everyday driving, the car felt sufficient for commuting and navigating city streets, but it showed its limitations when fully loaded or during highway overtaking maneuvers. Compared to the more powerful Astra J variants, like those equipped with the 1.6L or 2.0L turbocharged engines, the 1.4 ecoFLEX felt noticeably slower. The manual transmission, while precise, often required frequent downshifts to maintain momentum, particularly when climbing hills. The overall driving experience was clearly focused on fuel economy, and the car’s performance reflected that priority.
Equipment & Trim Levels
The 1.4 ecoFLEX typically came with a basic level of standard equipment. This generally included air conditioning, power windows, central locking, and a standard audio system with a CD player. Safety features like ABS brakes, electronic stability control, and multiple airbags were also standard. Interior upholstery was usually cloth, and the dashboard design was functional but relatively simple. Optional extras included alloy wheels, upgraded audio systems, parking sensors, and cruise control. Trim levels varied slightly depending on the specific market, but the 1.4 ecoFLEX consistently occupied the entry-level position within the Astra J range.
Chassis & Braking
The Astra J 1.4 ecoFLEX featured a MacPherson strut front suspension and a torsion beam rear suspension. The torsion beam setup was a cost-effective solution commonly used in compact hatchbacks. The front brakes were ventilated discs, providing adequate stopping power for the vehicle’s weight and performance. Rear brakes were solid discs. The steering was electrically assisted, offering a light and easy steering feel. The suspension was tuned for comfort, prioritizing ride quality over sporty handling. Stabilizer bars were present at both the front and rear, but were thinner compared to those found on higher-performance Astra J models.
Market Reception & Comparison
The Astra J 1.4 ecoFLEX was generally well-received by automotive critics for its fuel efficiency and affordability. However, its performance was often criticized as being underwhelming. When compared to other trims within the Astra J lineup, such as the 1.6L or 2.0L models, the 1.4 ecoFLEX offered significantly less power and acceleration. Conversely, it delivered superior fuel economy and lower running costs. Competitors in the same segment, like the Ford Focus 1.6L and Volkswagen Golf 1.4L, offered comparable performance and fuel efficiency. The Astra J 1.4 ecoFLEX’s appeal rested on its value proposition – a practical and economical hatchback for budget-conscious buyers.
Legacy
The A14XER engine, while generally reliable, is known to have some potential issues, including occasional oil leaks and the possibility of timing chain wear at higher mileages. Consistent maintenance, including regular oil changes and periodic timing chain inspections, is crucial for ensuring long-term reliability. In the used car market, the Astra J 1.4 ecoFLEX remains an affordable option for those seeking a practical and fuel-efficient hatchback. Its simplicity and relatively low running costs make it an attractive choice for first-time car buyers or individuals on a limited budget. Despite not being a performance-oriented vehicle, it provides dependable transportation and remains a common sight on European roads.
