1999-2002 Opel Astra G 2.0 DTI 16V (101 Hp)

The Opel Astra G 2.0 DTI 16V, produced from July 1999 to 2002, was a diesel-powered variant of the popular Astra G series (1998-2004). Positioned as a fuel-efficient and practical option within the Astra G range, it catered to drivers seeking lower running costs without sacrificing everyday usability. This model utilized the Y20DTH engine, a 2.0-liter direct injection turbocharged diesel, and was available in both 3-door and 5-door hatchback body styles. It played a significant role in the European market, offering a competitive alternative to other compact diesel hatchbacks.

Technical Specifications

Brand Opel
Model Astra
Generation Astra G
Type (Engine) 2.0 DTI 16V (101 Hp)
Start of production July, 1999
End of production 2002
Powertrain Architecture Internal Combustion engine
Body type Hatchback
Seats 5
Doors 3-5
Fuel consumption (urban) 7.5 l/100 km (31.4 US mpg)
Fuel consumption (extra urban) 4.5 l/100 km (52.3 US mpg)
Fuel consumption (combined) 5.6 l/100 km (42 US mpg)
CO2 emissions 151 g/km
Fuel Type Diesel
Acceleration 0 – 100 km/h 12 sec
Acceleration 0 – 62 mph 12 sec
Acceleration 0 – 60 mph 11.4 sec
Maximum speed 188 km/h (116.82 mph)
Weight-to-power ratio 12.4 kg/Hp
Weight-to-torque ratio 6.1 kg/Nm
Power 101 Hp @ 4300 rpm
Torque 205 Nm @ 1650-2500 rpm (151.2 lb.-ft.)
Engine layout Front, Transverse
Engine Model/Code Y20DTH
Engine displacement 1995 cm3 (121.74 cu. in.)
Number of cylinders 4
Engine configuration Inline
Cylinder Bore 84 mm (3.31 in.)
Piston Stroke 90 mm (3.54 in.)
Compression ratio 18.5:1
Number of valves per cylinder 4
Fuel injection system Direct injection
Engine aspiration Turbocharger, Intercooler
Valvetrain SOHC
Engine oil capacity 5.5 l (5.81 US qt | 4.84 UK qt)
Coolant capacity 5.9 l (6.23 US qt | 5.19 UK qt)
Kerb Weight 1250 kg (2755.78 lbs.)
Max. weight 1770 kg (3902.18 lbs.)
Max load 520 kg (1146.4 lbs.)
Trunk (boot) space – minimum 370 l (13.07 cu. ft.)
Trunk (boot) space – maximum 1180 l (41.67 cu. ft.)
Fuel tank capacity 52 l (13.74 US gal | 11.44 UK gal)
Max. roof load 100 kg (220.46 lbs.)
Permitted trailer load with brakes (12%) 1300 kg (2866.01 lbs.)
Permitted trailer load without brakes 650 kg (1433 lbs.)
Permitted towbar download 75 kg (165.35 lbs.)
Length 4110 mm (161.81 in.)
Width 1709 mm (67.28 in.)
Width including mirrors 1989 mm (78.31 in.)
Height 1425 mm (56.1 in.)
Wheelbase 2606 mm (102.6 in.)
Front track 1464 mm (57.64 in.)
Rear track 1452 mm (57.17 in.)
Front overhang 791 mm (31.14 in.)
Rear overhang 713 mm (28.07 in.)
Ride height (ground clearance) 130 mm (5.12 in.)
Drag coefficient (Cd) 0.28
Minimum turning circle 10.8 m (35.43 ft.)
Drivetrain Architecture Front wheel drive
Drive wheel Front wheel drive
Number of gears and type of gearbox 5 gears, manual transmission
Front suspension Independent, type McPherson with coil spring and anti-roll bar
Rear suspension Semi-independent, coil spring
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 195/65 R15
Wheel rims size 6.5J x 15 ET45

INTRODUCTION

The Opel Astra G 2.0 DTI 16V represented a significant step in offering diesel efficiency within the Astra G lineup. Introduced in 1999, it aimed to provide a more economical alternative to the gasoline-powered models, particularly appealing to drivers covering high annual mileages. The Astra G itself was a crucial model for Opel, representing a move towards more modern design and improved build quality. This variant, utilizing the Y20DTH engine, was primarily sold in European markets, where diesel engines held a larger market share than in North America.

Powertrain & Engine Architecture

The heart of the Astra G 2.0 DTI 16V is the Y20DTH engine, a 1995cc inline-four cylinder diesel. This engine featured direct fuel injection, a technology that significantly improved fuel efficiency and reduced emissions compared to older indirect injection systems. The ‘16V’ designation indicates the engine’s four valves per cylinder configuration, enhancing breathing and contributing to improved power output. A turbocharger with an intercooler was employed to boost power and torque. The fuel injection system was a Bosch EDC16C31 unit, controlling the precise timing and amount of fuel delivered to each cylinder. The engine utilized a single overhead camshaft (SOHC) design. The 5-speed manual transmission was the standard offering, providing a balance between fuel economy and drivability.

Driving Characteristics

The 2.0 DTI 16V, producing 101 horsepower and 205 Nm (151 lb-ft) of torque, offered respectable performance for its class. While not a sports car, the engine’s torque delivery provided adequate acceleration for everyday driving and overtaking maneuvers. The 0-60 mph time of around 11.4 seconds and a top speed of 116.82 mph were typical for a diesel hatchback of this era. The manual transmission allowed for good control over the engine’s power, but the gear ratios were geared towards fuel efficiency rather than outright performance. Compared to the more powerful gasoline variants, such as the 2.0 16V, the DTI felt less responsive, but offered significantly better fuel economy. The turbocharger did introduce a degree of turbo lag, noticeable at lower engine speeds.

Equipment & Trim Levels

The Astra G 2.0 DTI 16V was typically offered in relatively well-equipped trim levels, often positioned as a mid-range option. Standard features generally included central locking, power windows, power steering, and an anti-lock braking system (ABS). Interior upholstery was typically cloth, with options for upgraded materials available. Optional extras could include air conditioning, alloy wheels, a CD player, and electric mirrors. The dashboard layout was functional and straightforward, prioritizing usability over luxury. Trim levels varied slightly depending on the specific market, but generally followed a progressive structure with increasing levels of equipment.

Chassis & Braking

The Astra G 2.0 DTI 16V utilized a McPherson strut front suspension and a semi-independent coil spring rear suspension. This setup provided a comfortable ride quality, suitable for everyday driving. The front brakes were ventilated discs, offering good stopping power, while the rear brakes were solid discs. The steering was a rack and pinion system with hydraulic power assistance, providing precise and responsive handling. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering. The suspension was tuned to prioritize comfort and stability over sporty handling.

Market Reception & Comparison

The Astra G 2.0 DTI 16V was generally well-received by automotive critics as a practical and economical choice. Its fuel efficiency was a major selling point, particularly in Europe where fuel prices were higher. Compared to other diesel hatchbacks of the time, such as the Volkswagen Golf TDI, the Astra G offered a competitive combination of performance, economy, and price. However, some critics noted the engine could be somewhat noisy and lacked the refinement of some of its rivals. Reliability was generally good, although the turbocharger and fuel injection system could require maintenance over time.

Legacy

The Opel Astra G 2.0 DTI 16V remains a relatively common sight on European roads today, testament to its durability and practicality. The Y20DTH engine, while not without its quirks, proved to be a robust and reliable unit when properly maintained. In the used car market, these Astras are often sought after by buyers looking for an affordable and fuel-efficient vehicle. However, potential buyers should be aware of the potential for wear and tear on the turbocharger and fuel injection system, and ensure that regular maintenance has been carried out. The Astra G 2.0 DTI 16V represents a significant chapter in Opel’s history, demonstrating the brand’s commitment to offering practical and economical vehicles to a wide range of customers.

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