Market Segment:
Luxury Grand Tourer (GT)
Competitors:
Aston Martin Virage, Bentley Brooklands, Jaguar XJS.
Design Philosophy:
Elegant styling, powerful V12 engine, comfortable and luxurious interior for grand touring.
Powertrain:
Front-mounted V12 engine, rear-wheel drive.
Engine Mechanical:
Complete overhaul, component inspection, timing, lubrication, cooling system.
Engine Management:
Fuel injection system (Bosch Motronic M2.7/M5.2), ignition system, emissions control.
Transmission:
Manual and automatic gearbox servicing, clutch, drive shafts, differentials.
Brakes:
Hydraulic system, ABS (Bosch ABS 2S), caliper and rotor replacement, bleeding procedures.
Suspension And Steering:
Front and rear suspension components, power steering system, wheel alignment specifications.
Electrical System:
Wiring diagrams, starter, alternator, battery, lighting, instrumentation, central locking, power windows.
Bodywork And Interior:
Panel removal and installation, interior trim, door mechanisms, glass replacement.
Climate Control:
Air conditioning system servicing, heater core, ventilation.
Exhaust System:
Catalytic converters, mufflers, exhaust manifold servicing.
Preventative Maintenance:
Scheduled maintenance, fluid changes, filter replacements, inspections.
Troubleshooting:
Diagnostic procedures for common and uncommon faults, fault codes.
Repair And Rebuild:
Detailed step-by-step instructions for component removal, repair, and reinstallation, including engine and transmission rebuilds.
Diagnostics:
On-board diagnostics (OBD) information and diagnostic tool usage.
Wheel Alignment Specifications:
Detailed camber, caster, and toe specifications for front and rear axles.
Torque Specifications:
Precise torque values for critical fasteners throughout the vehicle.
Depth:
Comprehensive (Covers everything from routine maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and troubleshooting guides).
Displacement:
5.5 Liters (5474 cc)
Bore X Stroke:
85 mm x 80.8 mm
Valvetrain:
DOHC, 4 valves per cylinder (48 valves total)
Horsepower 456 Gt:
436 hp @ 6300 rpm
Torque 456 Gt:
568 Nm (419 lb-ft) @ 4500 rpm
Horsepower 456 M Gt:
442 hp @ 6250 rpm
Torque 456 M Gt:
584 Nm (431 lb-ft) @ 4750 rpm
Fuel Delivery:
Bosch Motronic Electronic Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline (Premium)
Cooling Type:
Liquid-cooled
Oil Change Interval:
Typically every 7,500-10,000 miles or annually, whichever comes first.
Major Service Interval:
Significant service recommended every 15,000-30,000 miles, including timing belt inspection/replacement (though this V12 uses a chain and tensioners).
Engine Oil Type:
API SJ or higher, SAE 10W-40 or 10W-50 synthetic recommended. Consult manual for exact specifications.
Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors. 50/50 mix with distilled water.
Transmission Fluid Manual:
GL-5 Gear Oil, SAE 75W-90 recommended. Consult manual for specific API ratings.
Transmission Fluid Automatic:
Dexron III or equivalent. Consult manual for exact specifications.
Brake Fluid Type:
DOT 4 High Performance Brake Fluid.
Engine Component Wear:
Timing chain tensioners, valve guides, and oil leaks can occur with age and mileage.
Cooling System Components:
Radiator, hoses, and water pump can degrade over time.
Electrical Gremlins:
Common in older high-end vehicles, including window motors, central locking, and dashboard illumination.
Suspension Bushings:
Wear on bushings can lead to imprecise handling and knocking sounds.
