🏷️ Basic Information

Make:

Vauxhall

Model:

Astra

Generation:

G (Mk IV)

Codes:

G: T98

👋 Introduction

Market Position:

The Vauxhall Astra Mk IV (G) was a highly competitive compact family car, holding a significant share of the European automotive market during its production run. It aimed to offer practicality, reliability, and a good balance of performance and economy.

Competitive Analysis:

Competed directly with established rivals such as the Ford Focus, Volkswagen Golf, Renault Mégane, and Peugeot 306. The Astra G was praised for its robust build quality and chassis dynamics, particularly with sportier variants.

Key Features:

Wide range of body styles (hatchback, saloon, estate, coupé, convertible), diverse engine lineup, comfortable ride, well-equipped interiors for its class, and a reputation for durability. The facelift introduced in late 1999 brought updated styling and improved features.

📋 Manual Details

Coverage Areas:

Global (with region-specific notes where applicable)

Page Count:

Hundreds (estimated 800+ pages)

Manual Type:

Comprehensive Service and Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered:

Engine Mechanical, Engine Management (Fuel Injection, Ignition, Emissions), Transmission (Manual, Automatic), Drivetrain, Suspension, Steering, Brakes (ABS, EBD), Climate Control, Body Electrical (Lighting, Wipers, Instruments), Body & Chassis, Safety Systems (Airbags, Seatbelts), Audio Systems, Diagnostic Procedures, Wiring Diagrams

Procedures Included:

Scheduled Maintenance, Routine Inspections, Troubleshooting & Diagnosis, Component Removal & Installation, Component Rebuilding & Overhaul, Adjustments, Lubrication Procedures, Electrical System Testing, Diagnostic Trouble Code (DTC) interpretation and resolution, Bodywork Repairs, Safety Component Service

Technical Depth:

Detailed diagnostic flowcharts, torque specifications, clearances, electrical schematics, component testing procedures, special tool requirements, overhaul instructions, and factory specifications for all major repair and maintenance tasks.

📊 Manual Specifications

File Format:

PDF (Portable Document Format)

Print Quality:

High-resolution, clear text and diagrams suitable for printing.

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine:

X16XEL (1.6L 16V ECOTEC)

1.6L 16V Ecotec (X16Xel):

Power: 100 PS (99 bhp; 74 kW) @ 6200 rpm, Torque: 148 N⋅m (109 lb⋅ft) @ 3200 rpm

Fuel System:

Multi-point Fuel Injection (MPI)

Engine Variants:

1.4L (C14SE, X14XE), 1.6L (X16XEL, Z16XE), 1.8L (X18XE, X18XE1, Z18XE), 2.0L (X20XEV, X20DTL, X20DTH, Y20DTH, Z20LET), 2.2L (Z22SE)

Engine Management:

Bosch Motronic, Siemens Simtec (specific to engine variant)

Emission Control:

Catalytic Converter, Lambda Sensor (Oxygen Sensor), EGR (Exhaust Gas Recirculation)

🔧 Transmission

Standard:

5-speed Manual (e.g., F17, M32 gearboxes)

Optional:

4-speed Automatic (e.g., AF13/AF17, AF22)

Features:

Hydraulic clutch actuation for manual transmissions, Lock-up torque converter for automatic transmissions.

📐 Dimensions

Exterior Dimensions:

Varies by body style (e.g., Hatchback: ~4270mm L x 1700mm W x 1450mm H)

Interior Space:

Designed for 5 occupants, offering reasonable legroom and headroom for its class.

Cargo Capacity:

Varies by body style (e.g., Hatchback: ~360-1240 litres with rear seats folded).

Curb Weight:

Approximately 1150-1400 kg, depending on engine and body style.

🛡️ Safety Features

Euro Ncap Rating:

Generally rated 3-4 stars for occupant protection during its era (results varied by specific test protocols and equipment levels).

Active Features:

Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD) on some models, Traction Control System (TCS) on higher trims or optional.

Passive Features:

Driver and front passenger airbags, side airbags (optional on some models), reinforced safety cage, crumple zones, pre-tensioned seatbelts.

💡 Technology Features

Infotainment Features:

Standard AM/FM radio with cassette player or CD player. Optional upgrade to RDS radio, multi-speaker systems, and steering wheel mounted audio controls.

Driver Assistance:

Limited by modern standards. Primarily focused on ABS, EBD, and optional TCS. Cruise control was available on higher trims.

Connectivity Options:

Basic. No integrated Bluetooth or USB connectivity. Auxiliary input for external devices may be present on later models or optional head units.

Lighting Systems:

Halogen headlamps, clear lens front indicators. Xenon HID lighting was an option on some higher-spec models (e.g., GSi, Elite) post-facelift.

🔧 Maintenance

Service Intervals:

Typically: Oil and filter change every 10,000 miles or 12 months. Air filter, fuel filter, and spark plugs at longer intervals (e.g., 30,000-60,000 miles). Timing belt (if applicable to engine variant) replacement critical, usually around 60,000 miles or 4 years.

Engine Oil:

API SJ or higher, ACEA A3/B3. Viscosity: 5W-30, 5W-40, 10W-40 depending on temperature and engine variant. (Consult manual for exact specs). Example: GM-LL-A-025 (Long Life)

Coolant:

GM Dex-Cool (Orange/Pink, silicate-free, G12 compatible), or equivalent antifreeze/water mix (50/50) for frost protection and corrosion inhibition.

Brake Fluid:

DOT 4

Transmission Fluid:

Manual: GL-4 Gear Oil (e.g., SAE 75W-80 or 75W-90). Automatic: Dexron III (or equivalent).

Known Issues:

Ignition coil pack failure (especially on 16V ECOTEC engines), ABS sensor faults, coolant leaks (especially from plastic thermostat housing), oil leaks from crank seals, power steering pump failure, minor electrical gremlins (e.g., central locking, window regulators).

Oil Filter Example:

Mann-Filter W712/4, Bosch 0986452016

Air Filter Example:

Mann-Filter C2211, Bosch 1987427504

Cabin Filter Example:

Mann-Filter CU2445, Bosch 1987431064

📚 Vehicle History

Brand Heritage:

Vauxhall, a long-standing British automotive manufacturer, has a history dating back to the late 19th century. It became part of General Motors in 1925, leading to shared platforms and technologies with Opel.

Model Evolution:

The Astra G replaced the Astra F (Mk III). It was a significant step forward in terms of design, engineering, and refinement. The Mk IV was produced from 1998 to 2004 (with the facelift in 2000), and served as the basis for the Opel Astra G, Chevrolet Astra, and Holden Astra.

Production Locations:

Primarily Ellesmere Port, United Kingdom; also produced in Germany (Opel), Poland, Brazil, Argentina, South Africa, and other locations for various markets.

🏆 Awards & Recognition

Recognitions:

The Astra G (Mk IV) consistently received positive reviews from automotive journalists for its handling, build quality, and value for money. It was a strong contender in its segment and often featured in 'Car of the Year' shortlists.

Reliability Ratings:

Generally considered reliable, though specific issues like ignition coils and ABS sensors were more common than on some Japanese competitors. Ownership satisfaction was generally good.

Certifications:

Met all applicable European safety and emissions standards for its production period.