2007-2009 Opel Astra H (facelift ) 1.7 CDTI ECOTEC (110 Hp)

The Opel Astra H (facelift, produced 2007-2009) 1.7 CDTI ECOTEC, generating 110 horsepower, represented a key offering in the European compact car market. Positioned as a fuel-efficient and practical option, this variant aimed to balance affordability with reasonable performance. It sat within the broader Astra H range, which included petrol and diesel engines with varying power outputs and transmission choices. The facelift brought styling updates and refinements to the already popular Astra H, enhancing its appeal to a wider customer base. This specific 1.7 CDTI model was particularly popular in countries where diesel fuel was favored due to tax incentives and superior fuel economy.

Technical Specifications

INTRODUCTION

The Opel Astra H facelift, produced from 2007 to 2009, built upon the success of the original Astra H launched in 2004. This refresh included revised front and rear styling, interior upgrades, and improvements to the engine range. The 1.7 CDTI ECOTEC variant, producing 110 horsepower, was a significant part of this lineup, particularly in Europe. It was designed to appeal to buyers seeking a balance between fuel efficiency, practicality, and affordability. The Astra H competed directly with rivals like the Ford Focus, Volkswagen Golf, and Peugeot 308.

Powertrain & Engine Architecture

The heart of this Astra variant is the Z17DTJ engine, a 1.7-liter inline four-cylinder diesel. This engine belongs to Opel/Vauxhall’s ECOTEC family, known for its focus on efficiency and refinement. The Z17DTJ utilizes a common rail direct injection system, delivering fuel directly into the combustion chamber at extremely high pressure. This technology, coupled with a turbocharger and intercooler, allows for a good balance of power and torque. The engine features a double overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing gas flow for improved performance. The 110 hp output is achieved at 3800 rpm, while peak torque of 260 Nm (191.77 lb.-ft.) is available from 2300 rpm. The engine is transversely mounted in the front of the vehicle. The 6-speed manual transmission was the standard offering, providing a good spread of gears for both fuel economy and acceleration.

Driving Characteristics

The 1.7 CDTI ECOTEC 110 hp Astra H offered a comfortable and practical driving experience. While not a performance-oriented model, the engine provided sufficient power for everyday driving situations. Acceleration from 0-60 mph took around 11.1 seconds, and the top speed was 185 km/h (114.95 mph). The turbocharger provided a noticeable boost in power at lower engine speeds, making overtaking maneuvers relatively easy. The 6-speed manual transmission allowed drivers to keep the engine in its optimal power band. Compared to the more powerful 1.9 CDTI variants, the 1.7 CDTI felt less responsive, but it offered significantly better fuel economy. The gear ratios were tuned for efficiency, prioritizing fuel savings over outright performance.

Equipment & Trim Levels

The 1.7 CDTI ECOTEC variant was typically offered in mid-range trim levels, such as ‘Enjoy’ or ‘Cosmo’. Standard equipment generally included air conditioning, power windows, central locking, and an audio system with CD player. Higher trim levels added features like alloy wheels, fog lights, cruise control, and a multi-function steering wheel. Interior upholstery was typically cloth, with options for upgraded materials. Safety features included ABS, front and side airbags, and seatbelt pretensioners. Optional extras included a sunroof, parking sensors, and a navigation system.

Chassis & Braking

The Astra H utilized a McPherson strut front suspension and a torsion beam rear suspension. This setup provided a good balance of ride comfort and handling. The front suspension featured a coil spring and anti-roll bar to reduce body roll during cornering. The braking system consisted of ventilated discs on the front wheels and solid discs on the rear. ABS (Anti-lock Braking System) was standard, enhancing braking performance and stability. The steering was rack and pinion with electric power assistance, providing precise and responsive steering feel.

Market Reception & Comparison

The Opel Astra H 1.7 CDTI ECOTEC was well-received by critics for its fuel efficiency and practicality. It was praised for its comfortable ride and refined engine. However, some reviewers noted that the engine lacked the punch of the more powerful diesel options. Compared to the 1.9 CDTI variants, the 1.7 CDTI offered better fuel economy but less performance. It also tended to be more affordable to purchase and maintain. The Astra H 1.7 CDTI competed effectively with rivals like the Ford Focus 1.6 TDCi and the Volkswagen Golf 1.9 TDI, offering a compelling alternative in the compact car segment.

Legacy

The Z17DTJ engine proved to be a reliable and durable unit, with many examples still on the road today. While not without its potential issues (such as turbocharger wear and EGR valve problems), the engine is generally considered to be relatively trouble-free if properly maintained. The Astra H 1.7 CDTI ECOTEC remains a popular choice in the used car market, particularly for buyers seeking a fuel-efficient and affordable compact car. Its reputation for reliability and practicality ensures its continued presence on roads across Europe.