Market Position:
Premium Grand Tourer (GT) segment. The XK8 (and its successor, the XKR) represented Jaguar's return to V8 power and a focus on elegant styling and comfortable, powerful cruising.
Competitive Analysis:
Competed against vehicles like the BMW 6 Series, Mercedes-Benz SL-Class, Porsche 911, and Aston Martin DB7. The XK8 was known for its distinctive styling, luxurious interior, and potent V8 engine, often at a more accessible price point than some European rivals.
Key Features:
Stylish XK8 bodywork (coupe and convertible), powerful V8 engine, sophisticated independent suspension, luxurious interior appointments, rear-wheel drive platform.
Coverage Areas:
Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Climate Control, Electrical Systems, Bodywork, Interior, Diagnostics, Maintenance, Repair
Page Count Estimated:
Extensive (Digital format, equivalent to hundreds of printed pages)
Manual Type:
Service and Repair Manual Software (Online Access)
Format:
Web-based software, accessible via browser
Systems Covered:
Engine mechanicals (AJ26, AJ27, AJ34 variants), engine management, fuel injection, ignition, cooling, exhaust, automatic transmission (ZF 5HP24), manual transmission (if applicable, though primarily automatic), differential, driveshafts, independent front suspension (double wishbone), independent rear suspension (multi-link), power steering, ABS, traction control, stability control, hydraulic systems, brake calipers, rotors, parking brake, HVAC system, body control module (BCM), lighting, audio system, power accessories, wiring diagrams, diagnostic trouble codes (DTCs)
Procedures Included:
Routine maintenance (oil changes, filter replacements, fluid checks), component removal and installation, diagnostic procedures, troubleshooting guides, electrical system repairs, wiring harness repair, interior trim removal, exterior panel adjustment, wheel alignment, brake servicing, suspension component replacement, engine tune-up, cooling system flushing, exhaust system repair, HVAC system servicing, transmission fluid service, differential fluid service, diagnostic scan tool usage, software updates (if applicable)
Technical Depth:
Comprehensive: Covers from basic preventive maintenance and fluid checks to advanced engine diagnostics, transmission overhauls, and complete electrical system troubleshooting and repair. Includes detailed torque specifications, schematics, and component-specific repair procedures.
Primary Engine 2005:
4.2L AJ-V8 DOHC 32-valve V8
Horsepower 2005:
300 hp @ 6000 rpm
Torque 2005:
317 lb-ft @ 4000 rpm
Fuel System Type:
Electronic Fuel Injection (EFI) with Sequential Port Injection
Engine Code Variants:
AJ34 (for the 4.2L V8)
Engine Block Material:
Aluminum
Cylinder Head Material:
Aluminum
Coolant Capacity Liters:
Approx. 9.5 liters (with heater)
Ignition Type:
Distributorless Electronic Ignition (DIS) with Coil-on-Plug
Oil Capacity Liters:
Approx. 7.2 liters (including filter)
Recommended Oil Viscosity:
SAE 5W-30 Synthetic (per Jaguar specification)
Transmission Type Standard:
5-speed Automatic (ZF 5HP24)
Transmission Type Optional:
None offered for 2005 XK8
Transmission Features:
Adaptive shift control, 'J-gate' manual shift mode
Transmission Fluid Type:
Mercon V or equivalent (e.g., ZF Lifeguardfluid 5)
Transmission Fluid Capacity Liters:
Approx. 8.7 liters (dry fill)
Wheelbase Mm:
2591 mm (102 inches)
Length Mm:
4932 mm (194.2 inches)
Width Mm:
1788 mm (70.4 inches)
Height Mm:
1320 mm (52 inches)
Curb Weight Kg:
Approx. 1720 kg (3792 lbs) for Coupe, 1770 kg (3902 lbs) for Convertible
Gross Vehicle Weight Rating Kg:
Approx. 2150 kg
Cargo Volume Liters Coupe:
Approx. 357 liters (12.6 cu ft)
Cargo Volume Liters Convertible:
Approx. 234 liters (8.3 cu ft) with roof up
Wheelbase Bolt Pattern:
5x120.65 mm (often referred to as 5x4.75 inches)
Standard Tire Size Front:
245/45ZR17
Standard Tire Size Rear:
245/45ZR17 (often wider options available)
NHTSA Front Impact Rating:
Not explicitly rated for this specific model year and segment in the same way modern vehicles are. Likely met all contemporary safety standards.
Active Safety Features:
Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Traction Control System (TCS), Dynamic Stability Control (DSC)
Passive Safety Features:
Driver and front passenger airbags, front side-impact airbags, front seatbelt pretensioners, reinforced passenger cell, pop-up rollover protection (convertible)
Infotainment System:
Alpine premium audio system with CD player, optional CD changer. Navigation system was available.
Driver Assistance Features:
Cruise Control, Parking Sensors (rear, optional)
Connectivity Features:
Limited by modern standards. Typically includes power outlets. Bluetooth connectivity was not standard.
Comfort Features:
Automatic climate control, heated seats, power-adjustable front seats with memory, leather upholstery, power-adjustable steering column.
Oil And Filter Interval Km Miles:
Approximately 15,000 km (9,300 miles) or 12 months, whichever comes first. Check manual for specific driving conditions.
Transmission Fluid Service Interval Km Miles:
Recommended at 120,000 km (75,000 miles) or 6-7 years for typical use. Refer to manual for severe service.
Spark Plug Replacement Interval Km Miles:
Approximately 160,000 km (100,000 miles) for iridium-tipped plugs.
Brake Fluid Type:
DOT 4 (High Performance)
Coolant Type:
Jaguar specified, ethylene glycol-based coolant with corrosion inhibitors (e.g., Castrol AF1100 or equivalent)
Power Steering Fluid Type:
Jaguar specified fluid (often a Pentosin CHF 11S or equivalent)
Differential Fluid Type:
API GL-5, SAE 75W-90 synthetic gear oil
Common Issues V8 Engine:
Timing chain tensioner wear (early models, less prevalent on 4.2L), oil cooler hose leaks, thermostat housing leaks, potential for Nikasil cylinder bore wear (primarily on earlier 4.0L engines, less common on 4.2L but good to be aware), water pump failure.
Common Issues Transmission:
ZF 5HP24 reliability is generally good, but occasional issues with mechatronics unit, valve body, or torque converter can occur with high mileage or poor maintenance.
Common Issues Suspension Steering:
Worn control arm bushings, ball joints, and wheel bearings are common due to vehicle weight and performance driving. Power steering pump leaks and rack issues can occur.
Common Issues Electronics:
Battery drain issues, faulty window regulators, heater control valve failure, ABS module problems, SRS warning light illumination.
Common Issues Body Convertible:
Convertible top hydraulic system leaks or slow operation, body control module issues affecting roof function.
Brand Heritage:
Jaguar has a long-standing reputation for producing luxurious, stylish, and performance-oriented grand tourers and sports cars, with a legacy dating back to the 1930s. The XK lineage is a significant part of this heritage.
Model Evolution Xk8:
The XK8 (X100) was introduced in 1996 as a successor to the XJS. It marked a significant shift with its modern styling, V8 engine, and a return to classic Jaguar GT proportions. The 2003 model year saw an update with the introduction of the 4.2L V8 and revised styling, carrying through to 2005. It was later succeeded by the X150 generation in 2006.
Production Years X100:
1996-2006
Production Location:
Coventry, England