🏷️ Basic Information

Make:

Jaguar

Model:

XJ40

Body Style:

Saloon (Sedan)

Product Type:

Vehicle Maintenance Sheet

Vin Range Start:

500515

Vin Range End:

629285

👋 Introduction

Brand Image:

Jaguar XJ40 represented Jaguar's entry into a more modern, sophisticated large executive saloon segment, balancing luxury with performance.

Competitors:

BMW 7 Series, Mercedes-Benz S-Class, Audi V8, Rover SD1.

Design Philosophy:

Modernized styling compared to previous XJ models, focus on aerodynamics and interior refinement.

Target Market:

Affluent individuals, company executives, and those seeking a luxurious and refined driving experience.

Value Proposition:

Provides the definitive OEM maintenance schedule as used by Jaguar dealerships, ensuring correct servicing for optimal vehicle health.

📋 Manual Details

Engine Types Covered:

2.9 Litre, 3.6 Litre, 4.0 Litre

Vehicle Generations:

XJ40 (specific VIN range)

Target Audience:

Dealership Technicians, Advanced DIY Enthusiasts

Estimated Pages:

Variable (Maintenance Sheet format)

Document Type:

Maintenance Schedule/Checklist

Purpose:

Outline of required service items and intervals

Language:

English

Format:

Likely Printed Sheet/Brochure

📖 Manual Coverage

Engine Maintenance:

Oil and filter change intervals, spark plug replacement, air filter checks, coolant checks.

Transmission Maintenance:

Automatic transmission fluid checks and changes, gearbox service intervals.

Brakes Maintenance:

Brake fluid checks, pad and disc inspection intervals.

Suspension Steering Maintenance:

Inspection of suspension components, steering system checks.

Electrical Systems Maintenance:

Battery checks, auxiliary belt inspection.

Cooling System Maintenance:

Coolant level checks, hose and radiator inspection.

Service Scheduling:

Recommended service intervals based on mileage and time.

Fluid Checks:

Lists which fluids to check and their approximate intervals.

Component Inspections:

Visual inspection points for key wear items.

Filter Replacements:

Scheduled replacement of oil, air, and fuel filters (where applicable).

Depth Level:

Service scheduling and basic checks, not detailed repair procedures.

Diagnostic Information:

Not included; focuses on preventative maintenance tasks.

📊 Manual Specifications

Format Type:

Printable Sheet

Print Quality:

Likely Original Equipment Manufacturer (OEM) standard

Binding:

Not applicable (Sheet format)

Paper Type:

Standard paper or cardstock, as originally issued

⚙️ Engine Specifications

Engine Family:

Jaguar AJ6 (later AJ16 for 4.0L variants)

2.9L Engine Code:

AJ6 2.9L (900 series)

3.6L Engine Code:

AJ6 3.6L (901 series)

4.0L Engine Code:

AJ6 4.0L (later AJ16 4.0L)

2.9L Horsepower Approx:

165 hp @ 5250 rpm

2.9L Torque Approx:

231 lb-ft @ 3250 rpm

3.6L Horsepower Approx:

200-221 hp @ 5000-5750 rpm

3.6L Torque Approx:

243-278 lb-ft @ 3000-3500 rpm

4.0L Horsepower Approx:

223-245 hp @ 5000-5250 rpm

4.0L Torque Approx:

277-300 lb-ft @ 3000-3500 rpm

Fuel Injection Type:

Lucas/Jaguar Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline

🔧 Transmission

Transmission Type:

ZF 4HP22 4-speed Automatic

Manual Transmission Availability:

Rarely offered, primarily on earlier 2.9L models, typically a 5-speed Getrag.

Transmission Control:

Electronic control for smoother shifts and efficiency.

Transmission Fluid Type:

Dexron III (or equivalent)

📐 Dimensions

Length Approx:

5022 mm (197.7 in)

Width Approx:

1793 mm (70.6 in)

Height Approx:

1392 mm (54.8 in)

Curb Weight Approx:

1750 - 1850 kg (3858 - 4079 lbs)

🛡️ Safety Features

Safety Certification Era:

Pre-modern crash testing standards; focus on structural integrity.

ABS:

Standard on later models, optional on earlier ones.

Airbags:

Driver airbag standard from 1990 onwards; passenger airbags optional.

Seatbelts:

3-point front and rear seat belts.

💡 Technology Features

Audio System:

Often featured premium cassette or early CD players, with options for amplifiers and multiple speakers.

Climate Control:

Automatic climate control with diagnostics (e.g., 'check control' panel).

Cruise Control:

Standard on most models.

Phone Integration:

Not present in the modern sense; early models may have had provisions for car phones.

🔧 Maintenance

Oil Change Interval Miles:

Typically every 12,000 miles or 12 months (check specific sheet details).

Major Service Interval Miles:

Varies, often around 48,000 miles or 48 months for more comprehensive checks.

Engine Oil Type:

API SG/SH, SAE 10W-30 or 10W-40 (check manual for specific viscosity based on climate).

Coolant Type:

Ethylene Glycol based, Jaguar specification (often a silicate-free type).

Brake Fluid Type:

DOT 4 (ensure clean and dry).

Electrical Reliability:

Historically, some early XJ40s suffered from electrical gremlins, particularly related to wiring loom insulation and module failures.

Suspension Components:

Hydraulic suspension (self-leveling rear on some models) can require maintenance; bushings and ball joints are wear items.

Bodywork:

Rust can be an issue, particularly around wheel arches, sills, and door bottoms if not properly maintained.

Engine Management:

EFI system can be sensitive to sensor faults; timing chain tensioners on early 4.0L engines are a known potential failure point.

📚 Vehicle History

Jaguar Legacy:

Continued Jaguar's tradition of producing luxurious, powerful, and stylish grand touring saloons.

Xjs Relation:

Shared powertrain and some chassis components with the XJS sports coupe.

Design Era:

Designed in the late 1970s and early 1980s, representing a departure from classic Jaguar styling.

Production Years:

1986 - 1992

Production Location:

Coventry, England

🏆 Awards & Recognition

General Reputation:

Praised for its ride comfort, build quality (especially post-early production issues), and refined driving dynamics. Often considered a good value luxury car on the used market.

Historical Reviews:

Contemporary reviews often highlighted its smooth engine, comfortable interior, and superior handling compared to some rivals, while noting electrical quirks and initial build quality concerns.