The Opel Astra J Sedan 1.6 CDTI (136 hp) was a key variant within the broader Astra J Sedan range, produced between 2014 and 2018. Positioned as a fuel-efficient and practical option, it aimed to balance performance with economy in the competitive European compact sedan market. This model represented Opel’s attempt to cater to buyers seeking a diesel-powered sedan with reasonable power output and modern features. It was part of the J series, which saw significant updates to the Astra line, focusing on improved refinement and technology.
Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra J Sedan |
| Type (Engine) | 1.6 CDTI (136 Hp) |
| Start of production | 2014 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 4.6 l/100 km (51.1 US mpg, 61.4 UK mpg, 21.7 km/l) |
| Fuel consumption (extra urban) | 3.6 l/100 km (65.3 US mpg, 78.5 UK mpg, 27.8 km/l) |
| Fuel consumption (combined) | 3.9 l/100 km (60.3 US mpg, 72.4 UK mpg, 25.6 km/l) |
| CO2 emissions | 104 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 10.1 sec |
| Acceleration 0 – 62 mph | 10.1 sec |
| Acceleration 0 – 60 mph | 9.6 sec |
| Maximum speed | 205 km/h (127.38 mph) |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 10.7 kg/Hp, 93.8 Hp/tonne |
| Weight-to-torque ratio | 4.5 kg/Nm, 220.7 Nm/tonne |
| Power | 136 Hp @ 3500 rpm |
| Power per litre | 85.1 Hp/l |
| Torque | 320 Nm @ 2000 rpm (236.02 lb.-ft. @ 2000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | B16TDH |
| Engine displacement | 1598 cm3 (97.52 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 79.7 mm (3.14 in.) |
| Piston Stroke | 80.1 mm (3.15 in.) |
| Compression ratio | 16:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5 l (5.28 US qt | 4.4 UK qt) |
| Coolant | 6.2 l (6.55 US qt | 5.46 UK qt) |
| Kerb Weight | 1450 kg (3196.7 lbs.) |
| Max. weight | 1985 kg (4376.18 lbs.) |
| Max load | 535 kg (1179.47 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 (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
INTRODUCTION
The Opel Astra J Sedan 1.6 CDTI (136 hp) represented a significant offering in Opel’s sedan lineup. Introduced in 2014 as part of the Astra J’s mid-life refresh, this variant aimed to provide a balance between fuel efficiency, reasonable performance, and practicality for European drivers. The Astra J generation (2009-2015) was built on the GM Delta II platform, also known as the 1HX0 platform, and the sedan body style was particularly popular in markets where traditional three-box designs were favored. This 1.6 CDTI engine was a key component of Opel’s efforts to meet increasingly stringent emissions regulations and consumer demand for diesel power.
Powertrain & Engine Architecture
The heart of the Astra J Sedan 1.6 CDTI is the B16TDH engine, a 1.6-liter inline-four cylinder diesel. This engine 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 efficiency. The engine boasts 136 horsepower at 3500 rpm and 320 Nm (236 lb-ft) of torque at 2000 rpm. The engine features four valves per cylinder and a compression ratio of 16:1, contributing to its efficiency. The 6-speed manual transmission was standard, providing a good spread of gears for both urban and highway driving. The engine also incorporated a Start & Stop system and a particulate filter to further reduce emissions.
Driving Characteristics
The 1.6 CDTI engine, paired with the 6-speed manual transmission, offered a reasonably refined driving experience. While not a performance-oriented variant, it provided adequate power for everyday driving situations. Acceleration from 0 to 100 km/h (0-62 mph) took around 10.1 seconds. The engine’s torque peak at 2000 rpm meant that there was ample pulling power for overtaking maneuvers and climbing hills. Compared to higher-output Astra J variants, such as those with the 2.0 CDTI engine, the 1.6 CDTI felt less responsive, but it compensated with significantly better fuel economy. The gear ratios were well-chosen, allowing for comfortable cruising on the highway while still providing enough grunt in lower gears for city driving. The steering was light and precise, making it easy to maneuver in tight spaces.
Equipment & Trim Levels
The Astra J Sedan 1.6 CDTI typically came with a respectable level of standard equipment. This included air conditioning, electric front windows, a basic audio system with USB connectivity, and ABS brakes. Higher trim levels, such as ‘Enjoy’ and ‘Cosmo’, added features like alloy wheels, cruise control, a more advanced infotainment system with a touchscreen display, and automatic climate control. Interior upholstery was typically cloth, with options for leather upgrades on higher trims. Optional extras included parking sensors, a rearview camera, and a panoramic sunroof. The dashboard layout was functional and well-designed, with a focus on ergonomics.
Chassis & Braking
The Astra J Sedan featured a MacPherson strut front suspension and a torsion beam rear suspension. This setup provided a good balance between ride comfort and handling. The front brakes were ventilated discs, while the rear brakes were typically solid discs, although some base models may have featured drum brakes. ABS (Anti-lock Braking System) was standard, providing enhanced braking performance and stability. The electric power steering offered a light and responsive feel, making it easy to maneuver the car in various driving conditions. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The Astra J Sedan 1.6 CDTI was generally well-received by automotive critics. It was praised for its fuel efficiency, comfortable ride, and practical interior. However, some reviewers noted that the engine could feel a bit underpowered, especially when fully loaded or driving uphill. Compared to other diesel-powered sedans in its class, such as the Ford Focus and Volkswagen Golf, the Astra J offered a competitive package in terms of price, fuel economy, and features. The 1.6 CDTI variant was often seen as a more sensible and economical alternative to the more powerful, but also more expensive, 2.0 CDTI models. Its fuel economy of around 3.9 l/100 km (60.3 US mpg) was a major selling point.
Legacy
The Opel Astra J Sedan 1.6 CDTI has proven to be a relatively reliable vehicle in the used car market. The 1.6 CDTI engine, while not without its occasional issues (such as potential DPF problems if not properly maintained), is generally considered to be durable and long-lasting. Regular servicing and the use of quality engine oil are crucial for maintaining its longevity. Today, these Astra J Sedans represent a good value proposition for buyers seeking an affordable, fuel-efficient, and practical compact sedan. They continue to be a common sight on European roads, testament to their enduring appeal and reliability.
