🏷️ Basic Information

Make:

Jaguar

Model:

XJR

Year:

1998

Chassis Code:

X300

👋 Introduction

Market Position:

Positioned as a performance-oriented luxury sedan, offering a blend of British refinement and robust power.

Competitive Analysis:

The 1998 XJR offered a potent supercharged V8 engine, sophisticated handling, and classic British luxury, distinguishing itself with performance and refined styling.

Key Features:

Supercharged V8 engine, adaptive suspension, luxurious interior appointments, advanced (for the era) electronic features.

📋 Manual Details

Coverage Areas:

Comprehensive service, repair, diagnostic, and maintenance information

Page Count:

Digital (Full Year Access)

Manual Type:

Service and Repair Manual Software

Language:

English

Format:

Web-based access, compatible with PC, laptop, smartphone, or tablet via internet browser.

📖 Manual Coverage

Systems Covered:

Body control modules, security systems, and dashboard warning light diagnostics.

Procedures Included:

Complete engine removal and installation procedures, including engine mount replacement and subframe handling.

Technical Depth:

Covers in-depth torque specifications for critical fasteners, tightening sequences, bearing clearances, and measurement specifications for engine and drivetrain components.

Wiring Diagrams:

Detailed electrical schematics for all major systems, including engine control, lighting, HVAC, and infotainment.

Diagnostic Procedures:

Troubleshooting trees, fault code interpretation (OBD-II), component testing procedures, and diagnostic tool usage recommendations.

📊 Manual Specifications

File Format:

Proprietary Software (Web-based Access)

Print Quality:

N/A (Digital Content)

Binding Type:

N/A (Digital Content)

Paper Type:

N/A (Digital Content)

⚙️ Engine Specifications

Engine Type:

4.0L DOHC Supercharged V8 (AJ16S)

Displacement:

3980 cc

Bore X Stroke:

86.0 mm x 87.0 mm

Horsepower:

322 hp @ 5000 rpm

Torque:

378 lb-ft @ 3050 rpm

Acceleration 0 60 Mph:

Approximately 5.7 seconds (manufacturer estimate)

Fuel System:

Electronic Fuel Injection (EFI) with Jaguar's Electronic Control Unit (JEC)

Recommended Fuel:

Premium Unleaded (91 Octane or higher)

Ignition System:

Coil-on-plug ignition

Engine Control Unit:

Jaguar Electronic Control (JEC) system

Emissions Control:

Catalytic converters, EGR system (depending on market)

🔧 Transmission

Transmission Type:

ZF 4HP24 Electronic Automatic

Gear Ratios:

3.18:1 (1st), 1.78:1 (2nd), 1.00:1 (3rd), 0.75:1 (4th), 2.08:1 (Reverse)

Features:

Sport mode, Overdrive

Transmission Fluid:

Mercon V or equivalent (e.g., Mobil ATF 220, Castrol Transmax)

Transmission Fluid Capacity:

Approximately 8.5 US quarts (8.0 liters)

📐 Dimensions

Length:

197.1 inches (5006 mm)

Width:

70.2 inches (1783 mm)

Height:

54.2 inches (1377 mm)

Wheelbase:

113.0 inches (2870 mm)

Curb Weight:

4034 lbs (1829 kg)

Gross Vehicle Weight Rating:

4938 lbs (2240 kg)

Seating Capacity:

5

Trunk Volume:

Approximately 15.7 cubic feet (445 liters)

🛡️ Safety Features

NHTSA Front Impact Rating:

Not specifically rated by NHTSA for this year/model combination.

Active Features:

Anti-lock Braking System (ABS), Traction Control System (TCS)

Braking System:

Front: Ventilated Discs, Rear: Solid Discs

Wheel Size:

17-inch Alloy Wheels (standard)

Tire Size:

225/55R17 (front), 245/50R17 (rear)

Wheel Bolt Pattern:

5x120.65

Passive Features:

Driver and Passenger Airbags, Side Impact Door Beams, Crumple Zones

💡 Technology Features

Infotainment System:

Premium audio system, CD player, Cassette player (standard)

Driver Assistance:

Cruise Control, Parking Sensors (optional)

Connectivity:

Limited to basic audio inputs; no Bluetooth or USB connectivity.

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles or 6 months (whichever comes first)

Major Service Interval:

60,000 miles or 5 years (includes spark plugs, coolant flush, transmission fluid change, etc.)

Engine Oil:

SAE 10W-40 Synthetic (API SJ or higher)

Coolant:

Jaguar Premium Coolant (Glysantin G05 or equivalent OAT coolant)

Brake Fluid:

DOT 4

Known Issues:

Headliner sagging, SRS (Supplemental Restraint System) warning light illumination, Idle control valve issues, Nikasil cylinder liner concerns (early AJ-V8 models, though less prevalent in supercharged variants), occasional cooling system leaks, transmission shift quality degradation.

Oil Filter Part Number:

Mann-Filter W940/1, Mahle OX147, Jaguar OEM JLM10940

Air Filter Part Number:

Mann-Filter C35176/2, Jaguar OEM JLM12343

Spark Plug Type:

NGK PFR5G-11

Maintenance Schedule Details:

The manual details specific checks and replacements for components like drive belts, hoses, filters, brake pads and rotors, suspension bushings, and exhaust system integrity at various mileage intervals.

📚 Vehicle History

Brand Heritage:

Jaguar Cars is renowned for its blend of performance, luxury, and distinctive styling, with a rich history in motorsport and luxury vehicle manufacturing.

Model Evolution:

The XJR is the high-performance variant of the Jaguar XJ series, first introduced in the late 1980s. The X300 generation (1994-1997) was a significant redesign, and the 1998 model continued this evolution with the introduction of the supercharged V8 for the XJR.

Production Period:

1994-1997 (X300 platform), XJR variant particularly prominent.

🏆 Awards & Recognition

Recognitions:

The XJ series has historically been recognized for its luxury and driving dynamics, though specific awards for the 1998 XJR model are not widely documented.