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Opel Astra H GTC 1.7 CDTI (100 Hp)
Overall Rating
Opel Astra:
The Opel Astra is a compact car/small family car developed and produced by the German automaker Opel since 1991, currently at its sixth generation. It was first launched in September 1991 as a direct replacement to the Opel Kadett. As of 2025, the car slots between the smaller Corsa supermini and the larger Frontera subcompact crossover SUV.
Initially, the Astra was available in hatchback, saloon, and estate forms. A panel van and a convertible also appeared in the early 1990s. These body styles were later followed by a coupé in 2004, and the sporty Astra OPC appeared in 2005. The Twin Top retractable hardtop convertible replaced the soft top convertible in 2006, while the Caravan was renamed to Astra Sports Tourer since 2009....(Read more on Wikipedia)
H GTC Overview:
Opel Astra (H GTC). With 240 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~6.4 l/100km). Weighing only 1215 kg, it’s quite light. Front‑wheel drive delivers efficiency and easy handling. Acceleration is relatively slow (0–100 km/h in 12.2 s). The top speed reaches 180 km/h. A compact car with a rear door that swings upward to provide access to the cargo area. Seating for 5 makes it ideal for daily use.
1.7 CDTI (100 Hp) Verdict:
Performance Verdict
Adequate performance for daily use, but lacks the punch and refinement of larger diesels.
Fuel Economy
Excellent fuel economy, making it a very economical choice for long-term ownership.
Pros and Cons:
Pros:
- • Sporty and attractive styling, especially the GTC variant
- • Wide range of engines, from economical diesels to high-performance OPC
- • Good handling and engaging driving dynamics for a C-segment car
- • Practical hatchback space with a decent boot
- • Strong Euro NCAP safety rating for its era
Cons:
- • Some entry-level engines can feel underpowered
- • Interior plastics can feel dated compared to rivals
- • Ride can be firm on sportier trims and larger wheels
- • Known for some common electrical gremlins (e.g., CIM module)
- • Automatic transmissions can be sluggish and less efficient
Specifications:
Specifications are compared to those of the previous generation(G Cabrio: March, 2001 - October, 2005).
| General: | |
|---|---|
| Brand: | Opel |
| Model: | Astra |
| Generation: | H GTC |
| Modification (Engine): | 1.7 CDTI (100 Hp) |
| Start of production: | March, 2005 |
| End of production: | 2006 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Hatchback |
| Seats: | 5 |
| Doors: | 3 |
| Engine: | |
|---|---|
| Power: | 100 Hp @ 4400 rpm. Same horsepower |
| Power per litre: | 59.3 Hp/l [23mm more] |
| Torque: | 240 Nm @ 2300 rpm. |
| Engine Model/Code: | Z17DTH More details about the engine Z17DTH |
| Engine displacement: | 1686 |
| Number of cylinders: | 4 |
| Engine configuration: | Inline |
| Number of valves per cylinder: | 4 |
| Fuel injection system: | Diesel Commonrail |
| Engine aspiration: | Turbocharger, Intercooler |
| Valvetrain: | DOHC |
| Engine oil capacity: | 5 l |
| Coolant: | 6.8 l |
| Engine layout: | Front, Transverse |
| Cylinder Bore: | 79 mm mm |
| Piston Stroke: | 86 mm mm |
| Compression ratio: | 18.4:1 |
| Performance: | |
|---|---|
| Fuel Type: | Diesel |
| Fuel consumption (economy) - urban: | 6.4 l/100 km |
| Fuel consumption (economy) - extra urban: | 4.2 l/100 km |
| Fuel consumption (economy) - combined: | 5 l/100 km |
| Emission standard: | Euro 4 |
| Acceleration 0 - 100 km/h: | 12.2 sec |
| Acceleration 0 - 62 mph: | 12.2 sec |
| Maximum speed: | 180 km/h |
| Weight-to-power ratio: | 12.2 kg/Hp, 82.3 Hp/tonne |
| Weight-to-torque ratio: | 5.1 kg/Nm, 197.5 Nm/tonne |
| Acceleration 0 - 60 mph: | 11.6 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1215 |
| Max. weight: | 1790 |
| Max load: | 575 |
| Trunk (boot) space - minimum: | 380 l |
| Fuel tank capacity: | 52 l |
| Size: | |
|---|---|
| Length: | 4290 mm mm [23mm more] |
| Width: | 1753 mm mm [44mm more] |
| Height: | 1415 mm mm [25mm more] |
| Wheelbase: | 2614 mm mm [8mm more] |
| Width including mirrors: | 2033 mm |
| Front track: | 1488 mm |
| Rear (Back) track: | 1488 mm |
| Front overhang: | 910 mm |
| Rear overhang: | 766 mm |
| Ride height (ground clearance): | 140 mm |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears | 6 |
| Transmission type | Manual |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 205/55 R16 |
| Wheel rims size | 6.5J x 16 |
| Front suspension | Spring Strut |
| Rear suspension | Spring Strut |
If you could change one thing about the Opel Astra, what would it be?