🏷️ Basic Information

Make:

Jaguar

Model:

XJ

Model Generation:

X350

Model Year Vin Code:

2003 MY (corresponds to X350 generation)

Engine Variants:

👋 Introduction

Market Segment:

Full-size Luxury Sedan

Key Competitors:

Mercedes-Benz S-Class, BMW 7 Series, Audi A8, Lexus LS, Porsche Panamera (contemporary competitors)

Chassis Construction:

Bonded aluminum monocoque chassis (unique selling proposition for weight and rigidity)

Suspension System:

Computer-controlled adaptive air suspension (CATS - Computer Active Technology Suspension)

Design Philosophy:

Classic Jaguar styling combined with modern luxury and performance.

📋 Manual Details

Manual Scope:

Vehicle Maintenance Sheet (Dealer Service Information)

Page Count:

Variable (typically a multi-page document specific to service intervals)

Manual Type:

Maintenance Schedule / Service Information Sheet

Language:

English (Standard for Jaguar Service Documentation)

Format:

Digital Document (likely PDF or similar, presented as dealer-used sheet)

📖 Manual Coverage

Maintenance Scheduling:

Provides scheduled maintenance tasks for key vehicle systems.

Engine Maintenance:

Specifies oil changes, filter replacements, spark plug intervals, and coolant checks.

Transmission Maintenance:

Details transmission fluid and filter change intervals.

Braking System Maintenance:

Covers brake fluid replacement and inspection points.

Suspension And Steering Maintenance:

Includes checks for suspension components and steering system.

Cooling System Maintenance:

Outlines coolant checks and replacement intervals.

Fuel System Maintenance:

Mentions fuel filter replacement if applicable.

Exhaust System Maintenance:

Includes inspection of exhaust components.

Electrical System Maintenance:

Covers battery checks and general electrical system inspections.

Routine Maintenance:

Detailed tasks for scheduled servicing at specific mileage or time intervals.

Diagnostic Checks:

Implies necessary diagnostic checks performed during service.

Depth Of Information:

Focuses on service intervals and required tasks, not in-depth repair procedures.

Target Audience:

Professional Technicians (dealership level)

📊 Manual Specifications

File Format:

PDF (assumed for digital distribution)

Print Quality:

High (designed for clear dealership use)

Binding Type:

N/A (Digital Document)

Paper Type:

N/A (Digital Document)

⚙️ Engine Specifications

Engine 3.0L V6 Type:

Jaguar AJ-V6

Engine 3.0L V6 Displacement:

2967 cc (3.0 Liters)

Engine 3.0L V6 Power:

240 PS (177 kW; 237 bhp) @ 6800 rpm (approx.)

Engine 3.0L V6 Torque:

289 Nm (213 lb-ft) @ 4200 rpm (approx.)

Engine 3.5L V8 Type:

Jaguar AJ-V8 Gen III

Engine 3.5L V8 Displacement:

3555 cc (3.5 Liters)

Engine 3.5L V8 Power:

262 PS (193 kW; 258 bhp) @ 6500 rpm (approx.)

Engine 3.5L V8 Torque:

345 Nm (255 lb-ft) @ 4200 rpm (approx.)

Engine 4.2L V8 Naturally Aspirated Type:

Jaguar AJ-V8 Gen III

Engine 4.2L V8 Naturally Aspirated Displacement:

4196 cc (4.2 Liters)

Engine 4.2L V8 Naturally Aspirated Power:

300 PS (221 kW; 296 bhp) @ 6000 rpm

Engine 4.2L V8 Naturally Aspirated Torque:

420 Nm (310 lb-ft) @ 4100 rpm

Engine 4.2L V8 Supercharged Type:

Jaguar AJ-V8 Gen III SC

Engine 4.2L V8 Supercharged Displacement:

4196 cc (4.2 Liters)

Engine 4.2L V8 Supercharged Power:

400 PS (294 kW; 395 bhp) @ 6100 rpm

Engine 4.2L V8 Supercharged Torque:

540 Nm (398 lb-ft) @ 3500 rpm

Engine Variations Performance Impact:

Performance capabilities vary significantly between V6 and V8 engines, with supercharged variants offering substantial power increases.

Fuel Type:

Unleaded Gasoline (Premium Recommended)

Fuel Injection:

Multi-point Fuel Injection (MPI) / Sequential Electronic Fuel Injection

Engine Management:

Jaguar electronic engine management system (e.g., Bosch Motronic variants)

🔧 Transmission

Transmission Type Standard:

ZF 6HP26 6-speed automatic transmission

Transmission Type Optional:

N/A (6-speed automatic was standard across the range for this MY)

Transmission Features:

Adaptive shift logic, 'Sport' mode, manual sequential shifting (Jaguar Sequential Shift)

Transmission Fluid Type:

Jaguar WSS-M2C195-A or equivalent ATF (e.g., Mobil ATF LT 71141)

📐 Dimensions

Wheelbase:

3037 mm (119.6 in)

Length:

5020 mm (197.6 in)

Width:

1864 mm (73.4 in) (excluding mirrors)

Height:

1450 mm (57.1 in)

Curb Weight Approx 3.0L:

1750 kg (3858 lbs)

Curb Weight Approx 4.2L:

1820 kg (4012 lbs)

Curb Weight Approx 4.2L Sc:

1870 kg (4123 lbs)

🛡️ Safety Features

Safety Certification:

No specific NHTSA/Euro NCAP ratings readily available for all early X350 variants, but designed to meet stringent safety standards of its class.

Active Safety Systems:

ABS (Anti-lock Braking System), EBA (Emergency Brake Assist), DSC (Dynamic Stability Control), Traction Control System (TCS)

Passive Safety Features:

Front airbags, side airbags, curtain airbags, active front head restraints, 3-point seatbelts with pre-tensioners.

💡 Technology Features

Infotainment System:

Jaguar Premium Sound System or Alpine/Bowers & Wilkins audio options, CD player, Radio (AM/FM), Optional Navigation system.

Driver Assistance Features:

Parking sensors (front and rear), Cruise control.

Connectivity Options:

Limited by era; typically includes a 12V power outlet, and potentially an auxiliary input for audio devices on later updates within the MY.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 miles or 12 months, whichever comes first (refer to specific sheet for exact intervals).

Air Filter Replacement:

Recommended at major service intervals (e.g., 30,000 miles or 24 months).

Cabin Filter Replacement:

Recommended annually or every 12,000 miles.

Spark Plug Replacement:

Varies by engine; typically around 60,000 miles for V8, potentially longer for V6. Refer to service sheet for specific type and interval.

Transmission Fluid Change:

Jaguar recommended long-life fluid, but proactive changes (e.g., 50,000-70,000 miles) are advisable by enthusiasts.

Coolant Replacement:

Initial change at 10 years or 150,000 miles, then every 5 years or 75,000 miles thereafter (Jaguar Spec).

Brake Fluid Replacement:

Every 2 years regardless of mileage.

Engine Oil Specification:

Jaguar WSS-M2C913-B or Ford WSS-M2C193-A; 5W-30 viscosity (check specific engine variant and owner's manual for exact spec, e.g., Castrol Professional A5 5W-30).

Coolant Specification:

Jaguar WSS-M97B44-D (OAT - Organic Acid Technology), typically a pink/red colored coolant.

Air Suspension Struts:

Leaks in air suspension struts or compressor failure can occur with age and mileage.

Aluminum Corrosion:

Corrosion can develop on aluminum body panels and chassis components, particularly in areas exposed to road salt.

Timing Chain Tensioners:

Early V8 engines (pre-AJ-V8 Gen III) had issues with plastic timing chain tensioners failing; the Gen III engines used in this MY are generally more robust, but chain wear is still a consideration.

Water Pump Leaks:

Water pump seal leaks can occur, especially on higher mileage vehicles.

Infotainment System Glitches:

Early infotainment systems can sometimes experience minor electronic glitches or unresponsiveness.

📚 Vehicle History

Brand Legacy:

Jaguar Cars has a long-standing reputation for luxury, performance, and distinctive British styling dating back to 1922.

Predecessor Model:

Jaguar XJ (X308) Series

Introduction Of X350:

The X350 generation debuted in late 2002 for the 2003 model year, marking a significant technological and design shift.

X350 Design Innovation:

The adoption of a full aluminum monocoque chassis was a major innovation, improving rigidity and reducing weight compared to steel predecessors.

Manufacturing Plant:

Castle Bromwich Assembly, Birmingham, United Kingdom

Production Period For X350:

2003 - 2009

🏆 Awards & Recognition

Industry Awards:

While specific awards for the 2003 XJ may vary, the XJ line consistently received praise for its ride comfort, handling balance, and refined interior.