Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra G Caravan (facelift 2002) |
| Type (Engine) | 1.8 16V (125 Hp) Automatic |
| Start of production | 2002 |
| End of production | May, 2004 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (urban) | 12.1 l/100 km (19.4 US mpg, 23.3 UK mpg, 8.3 km/l) |
| Fuel consumption (extra urban) | 6.8 l/100 km (34.6 US mpg, 41.5 UK mpg, 14.7 km/l) |
| Fuel consumption (combined) | 8.8 l/100 km (26.7 US mpg, 32.1 UK mpg, 11.4 km/l) |
| CO2 emissions | 211 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 11.5 sec |
| Acceleration 0 – 62 mph | 11.5 sec |
| Acceleration 0 – 60 mph | 10.9 sec |
| Maximum speed | 193 km/h (119.92 mph) |
| Weight-to-power ratio | 9.4 kg/Hp, 106.1 Hp/tonne |
| Weight-to-torque ratio | 6.9 kg/Nm, 144.3 Nm/tonne |
| Power | 125 Hp @ 5600 rpm |
| Power per litre | 69.6 Hp/l |
| Torque | 170 Nm @ 3800 rpm (125.39 lb.-ft. @ 3800 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | Z18XE |
| Engine displacement | 1796 cm3 (109.6 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 80.5 mm (3.17 in.) |
| Piston Stroke | 88.2 mm (3.47 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.25 l (4.49 US qt | 3.74 UK qt) |
| Coolant capacity | 6.3 l (6.66 US qt | 5.54 UK qt) |
| Kerb Weight | 1178 kg (2597.05 lbs.) |
| Max. weight | 1770 kg (3902.18 lbs.) |
| Max load | 592 kg (1305.14 lbs.) |
| Trunk (boot) space – minimum | 480 l (16.95 cu. ft.) |
| Trunk (boot) space – maximum | 1500 l (52.97 cu. ft.) |
| Fuel tank capacity | 52 l (13.74 US gal | 11.44 UK gal) |
| Length | 4288 mm (168.82 in.) |
| Width | 1709 mm (67.28 in.) |
| Width including mirrors | 1967 mm (77.44 in.) |
| Height | 1510 mm (59.45 in.) |
| Wheelbase | 2611 mm (102.8 in.) |
| Front track | 1464 mm (57.64 in.) |
| Rear track | 1452 mm (57.17 in.) |
| Ride height (ground clearance) | 130 mm (5.12 in.) |
| Drag coefficient (Cd) | 0.32 |
| Drivetrain Architecture | ICE, Front wheel drive |
| Number of gears | 4 |
| Gearbox type | Automatic transmission |
| Front suspension | Spring Strut |
| Rear suspension | Trailing arm |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 195/60 R15 |
| Wheel rims size | 15 |
The Opel Astra G Caravan (facelift, produced 2002-2004) 1.8 16V with an automatic transmission represents a practical and relatively well-equipped variant within the broader Astra G range. Introduced as part of the facelift for the G generation, this model aimed to provide a comfortable and convenient option for families and drivers prioritizing ease of use over outright performance. It occupied a mid-range position in the lineup, offering a step up from the base 1.4L engine while remaining more accessible than the more powerful and sporty 2.0L or turbocharged variants. The Astra G Caravan itself was Opel’s compact estate car, designed to compete with rivals like the Ford Focus Estate and Volkswagen Golf Variant in the European market.
Powertrain & Engine Architecture
The heart of this Astra variant is the Z18XE engine, an 1.8-liter inline-four cylinder gasoline engine. This engine is a member of Opel’s ‘Ecotec’ family, known for its focus on efficiency and refinement. The Z18XE features a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, contributing to its relatively good breathing characteristics for its displacement. Fuel delivery is handled by a multi-port fuel injection system, providing precise fuel metering. The engine produces 125 horsepower at 5600 rpm and 170 Nm (125 lb-ft) of torque at 3800 rpm. Paired with this engine is a four-speed automatic transmission. This transmission, while providing convenience, is a somewhat older design and doesn’t offer the smoothness or efficiency of more modern automatic gearboxes with more ratios.
Driving Characteristics
The 1.8L automatic Astra G Caravan delivers a comfortable, if not particularly exhilarating, driving experience. Acceleration from 0-60 mph takes around 10.9 seconds, and top speed is approximately 119.92 mph. The automatic transmission prioritizes smooth shifts over aggressive performance. Compared to the five-speed manual version of the same engine, the automatic suffers a slight performance penalty due to the transmission’s inherent inefficiencies and the lack of driver control over gear selection. The gear ratios are tuned for fuel economy and everyday usability, rather than sporty driving. The Caravan’s estate body style adds weight, further impacting acceleration and handling compared to the hatchback version.
Equipment & Trim Levels
The 1.8 16V Automatic trim typically included features such as power windows, central locking, power steering, and an air conditioning system. Interior upholstery was generally cloth, with options for upgraded materials available. Standard safety equipment included ABS brakes and driver/passenger airbags. Optional extras could include alloy wheels, a sunroof, and a CD player. The specific trim level within the range varied by market, but generally, this configuration represented a solid mid-range offering, balancing price and features.
Chassis & Braking
The Astra G Caravan utilizes a MacPherson strut front suspension and a trailing arm rear suspension. This setup provides a reasonable compromise between ride comfort and handling. The front brakes are ventilated discs, offering good stopping power, while the rear brakes are solid discs. The steering is rack and pinion with hydraulic power assistance, providing a reasonably direct and responsive feel. The Caravan’s weight, due to its estate body style, necessitates a slightly firmer suspension setup compared to the hatchback, but it still prioritizes comfort for passengers.
Market Reception & Comparison
The Astra G Caravan 1.8 16V Automatic was generally well-received as a practical and reliable family car. Critics praised its spacious interior, comfortable ride, and decent fuel economy (around 26.7 US mpg combined). However, the four-speed automatic transmission was often criticized for being somewhat dated and lacking the responsiveness of more modern units. Compared to the 2.0L or turbocharged versions, the 1.8L offered a more affordable entry point into the Astra G range, but at the expense of performance. The 1.9 TDI diesel variant offered significantly better fuel economy, making it a popular choice for high-mileage drivers, but it came with a higher purchase price and potentially higher maintenance costs.
Legacy
The Opel Astra G Caravan 1.8 16V Automatic has proven to be a relatively durable and reliable vehicle. The Z18XE engine is known for its longevity, provided it receives regular maintenance. The automatic transmission, while not the most sophisticated, is generally robust. Today, these cars are readily available on the used car market at affordable prices. They represent a good value proposition for buyers seeking a practical and dependable estate car, although potential buyers should be aware of the age-related issues common to vehicles of this era, such as corrosion and wear and tear on suspension components.
