The Opel Astra F 1.6 Si Automatic, produced between March 1993 and July 1994, represented a mid-range offering within the popular Astra F generation (1991-1998). Positioned as a comfortable and practical choice, this variant combined a 1.6-liter gasoline engine with a four-speed automatic transmission. The Astra F, Opel’s replacement for the Astra D/E, was a crucial model for the company, aiming to provide a modern and competitive family car in the European market. This specific configuration catered to buyers prioritizing ease of driving over outright performance, offering a balance between fuel economy and convenience. It was available in both 3-door and 5-door hatchback body styles.
Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra F |
| Type (Engine) | 1.6 Si (100 Hp) Automatic |
| Start of production | March, 1993 |
| End of production | July, 1994 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 3-5 |
| Fuel consumption (urban) | 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l) |
| Fuel consumption (extra urban) | 6.5 l/100 km (36.2 US mpg, 43.5 UK mpg, 15.4 km/l) |
| Fuel consumption (combined) | 8.3 l/100 km (28.3 US mpg, 34 UK mpg, 12 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 12.5 sec |
| Acceleration 0 – 62 mph | 12.5 sec |
| Acceleration 0 – 60 mph | 11.9 sec |
| Maximum speed | 183 km/h (113.71 mph) |
| Emission standard | Euro 1 |
| Weight-to-power ratio | 9.7 kg/Hp, 103.1 Hp/tonne |
| Weight-to-torque ratio | 7.2 kg/Nm, 139.2 Nm/tonne |
| Power | 100 Hp @ 5600 rpm |
| Power per litre | 62.6 Hp/l |
| Torque | 135 Nm @ 3400 rpm (99.57 lb.-ft. @ 3400 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | C16SE |
| Engine displacement | 1598 cm3 (97.52 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 79 mm (3.11 in.) |
| Piston Stroke | 81.5 mm (3.21 in.) |
| Compression ratio | 9.8:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 3.5 l (3.7 US qt | 3.08 UK qt) |
| Coolant | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Kerb Weight | 970/990 kg (2138.48 lbs.) |
| Max. weight | 1515 kg (3340 lbs.) |
| Max load | 525-545 kg (1157.43 – 1201.52 lbs.) |
| Trunk (boot) space – minimum | 360 l (12.71 cu. ft.) |
| Trunk (boot) space – maximum | 1200 l (42.38 cu. ft.) |
| Fuel tank capacity | 52 l (13.74 US gal | 11.44 UK gal) |
| Length | 4051 mm (159.49 in.) |
| Width | 1688 mm (66.46 in.) |
| Width including mirrors | 1795 mm (70.67 in.) |
| Height | 1410 mm (55.51 in.) |
| Wheelbase | 2517 mm (99.09 in.) |
| Front track | 1424 mm (56.06 in.) |
| Rear (Back) track | 1423 mm (56.02 in.) |
| Ride height (ground clearance) | 135 mm (5.31 in.) |
| Drag coefficient (Cd) | 0.32 |
| Minimum turning circle | 10.5 m (34.45 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 4 gears, automatic transmission |
| Front suspension | Wishbone |
| Rear suspension | Suspension with traction connecting levers |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Steering type | Steering rack and pinion |
| Tires size | 175/70 R13 82T; 175/65 R14 82T |
| Wheel rims size | 5.5J x 13 ET49; 5.5J x 14 ET49 |
Powertrain & Engine Architecture
The heart of the Astra F 1.6 Si Automatic was the C16SE engine, a 1.6-liter inline-four cylinder gasoline engine. This engine featured a single overhead camshaft (SOHC) valvetrain operating two valves per cylinder. Fuel delivery was handled by a multi-port fuel injection system, providing a balance between efficiency and performance for its time. The C16SE was known for its relative simplicity and durability, making it a popular choice for fleet vehicles and everyday drivers. The four-speed automatic transmission, while not offering the sportiness of a manual, provided smooth and convenient gear changes. This transmission was a typical torque converter automatic, prioritizing comfort over outright efficiency. Gear ratios were geared towards providing adequate acceleration in urban environments and comfortable cruising on highways.
Driving Characteristics
The 1.6 Si Automatic offered a comfortable, if not particularly exhilarating, driving experience. With 100 horsepower and 135 Nm of torque, acceleration from 0-60 mph took around 11.9 seconds, and 0-100km/h in 12.5 seconds. Compared to the more powerful 1.8-liter and 2.0-liter variants, or even the diesel options, the 1.6 Si Automatic felt noticeably slower. The automatic transmission, while smooth, did contribute to some power loss. However, the relaxed nature of the powertrain made it well-suited for city driving and long journeys where outright speed wasn’t a priority. The automatic transmission’s gear ratios were optimized for fuel economy and ease of use, rather than aggressive acceleration. The steering was light and easy, making maneuvering in tight spaces simple.
Equipment & Trim Levels
The 1.6 Si Automatic trim level typically included features such as central locking, power steering, and an upgraded interior trim compared to the base models. Interior upholstery was usually cloth, with options for different patterns and colors. Depending on the market and optional extras selected, features like electric windows, a sunroof, and an upgraded audio system could also be included. The dashboard layout was functional and straightforward, with clearly labeled controls. Air conditioning was often an optional extra, adding to the comfort of the cabin.
Chassis & Braking
The Astra F 1.6 Si Automatic utilized a front-wheel-drive layout with a relatively simple suspension setup. The front suspension featured independent wishbones, while the rear suspension employed a torsion beam setup with traction connecting levers. This configuration provided a reasonable balance between ride comfort and handling. Braking duties were handled by ventilated discs on the front wheels and drum brakes on the rear. This combination was adequate for the vehicle’s weight and performance, but lacked the stopping power of all-disc brake setups found on higher-spec models. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The Astra F 1.6 Si Automatic was generally well-received as a practical and affordable family car. Critics praised its comfortable ride, spacious interior, and reasonable fuel economy. However, the engine’s lack of outright power and the automatic transmission’s somewhat dated technology were points of criticism. Compared to the manual transmission versions of the 1.6, the automatic offered less engaging driving experience and slightly lower fuel economy. The 1.8-liter and 2.0-liter variants provided significantly more performance, but at a higher price point. The diesel models offered superior fuel economy, but with a trade-off in refinement and acceleration.
Legacy
The Opel Astra F 1.6 Si Automatic, while not the most exciting variant in the lineup, proved to be a reliable and durable vehicle. The C16SE engine is known for its longevity, and with proper maintenance, many examples are still on the road today. In the used car market, these Astras are often sought after as affordable and practical transportation. Parts availability is generally good, and the relatively simple mechanical design makes them relatively easy to maintain. The Astra F, in general, helped solidify Opel’s position as a major player in the European compact car market, and the 1.6 Si Automatic played a significant role in attracting buyers seeking a comfortable and convenient driving experience.
