Positioning:
Luxury Grand Tourer (GT) offering significant performance and comfort, targeting a discerning clientele.
Competitors:
Aston Martin V8 Vantage, Jaguar XJS, BMW 6 Series (E24), Mercedes-Benz SEC Coupe.
Design Influence:
Pininfarina styling, initially based on the Ferrari 365 GT4 2+2.
Transmission Innovation:
One of the first Ferraris offered with an automatic transmission, broadening its appeal.
Primary Users:
Ferrari owners, specialist mechanics, automotive restoration enthusiasts.
Benefit:
Enables owners and technicians to maintain and repair the complex systems of the Ferrari 400i accurately and efficiently.
Model Years Covered:
1979, 1980, 1981, 1982, 1983, 1984, 1985
Styles Covered:
All styles
Estimated Pages:
Hundreds (actual count not specified, but described as comprehensive)
Type:
Workshop Service Repair Manual
Engine:
Complete engine overhaul, diagnostics, tuning, fuel injection system, ignition system, cooling system, lubrication system
Transmission:
Automatic transmission (e.g., ZF 3HP22) repair, maintenance, fluid service
Drivetrain:
Driveshafts, differentials, CV joints
Brakes:
Hydraulic system, calipers, rotors, pads, parking brake, bleeding procedures
Suspension:
Front and rear suspension, shock absorbers, springs, control arms, bushings
Steering:
Power steering system, steering rack, tie rods
Electrical:
Wiring diagrams, starter motor, alternator, battery, lighting, instrumentation, fuse box, electronic control units (ECUs)
Fuel System:
Fuel injection system (Bosch K-Jetronic for most), fuel pump, injectors, fuel lines
Exhaust System:
Exhaust manifold, catalytic converters, mufflers, pipes
Cooling System:
Radiator, fan, water pump, thermostat, coolant hoses
Body:
Body panel alignment, doors, hood, trunk, trim, glass replacement
Interior:
Seating, dashboard, HVAC controls, interior trim components
Climate Control:
Air conditioning system service, components, and troubleshooting
Maintenance:
Routine maintenance checks, oil changes, filter replacements, tune-ups
Troubleshooting:
Diagnostic procedures for common and complex issues
Repair:
Step-by-step repair instructions for all major mechanical and electrical components
Disassembly:
Detailed procedures for component removal and disassembly
Assembly:
Detailed procedures for component reassembly and installation
Cleaning:
Component cleaning procedures where applicable
Reinstallation:
Procedures for reinstalling repaired or replaced components
Depth:
Comprehensive: Covers basic maintenance to full rebuilds and diagnostics
Audience:
Professional technicians and experienced DIY mechanics
Type:
Naturally aspirated V12
Displacement:
4.8 Liters (4823 cc)
Bore X Stroke:
82 mm x 78 mm
Valvetrain:
DOHC (Double Overhead Camshafts), 2 valves per cylinder
Horsepower:
Approx. 340 PS (335 bhp) at 6300 rpm (European spec); approx. 310 bhp for US spec.
Torque:
Approx. 420 Nm (310 lb-ft) at 3500 rpm (European spec)
Injection System:
Bosch K-Jetronic (CIS - Continuous Injection System)
Fuel Type:
Premium Unleaded Gasoline (91+ octane recommended)
Oil Capacity:
Approx. 12.0 Liters (12.7 Quarts) with filter change
Type:
Electronic Ignition (often Marelli electronic ignition)
Length:
Approx. 4,860 mm (191.3 in)
Width:
Approx. 1,770 mm (69.7 in)
Height:
Approx. 1,300 mm (51.2 in)
Wheelbase:
Approx. 2,700 mm (106.3 in)
Curb Weight:
Approx. 1,750 kg (3,858 lbs)
Gross Vehicle Weight Rating:
Not typically specified in consumer materials, but implied by load capacity.
Oil Change:
Typically every 5,000-7,500 miles (8,000-12,000 km) or annually, whichever comes first.
Major Service:
Recommended every 15,000-20,000 miles (24,000-32,000 km) or 2-3 years, including timing belt inspection/replacement (if applicable to specific engine variant/design), coolant flush, brake fluid flush.
Engine Oil:
SAE 20W-50 or SAE 10W-40 synthetic or high-quality mineral oil (check specific manual for exact viscosity and API rating).
Coolant:
50/50 mix of high-quality ethylene glycol antifreeze and distilled water.
Brake Fluid:
DOT 4 (or DOT 3 for some earlier systems, confirm with manual).
Fuel Injection:
K-Jetronic system can be sensitive to vacuum leaks and proper fuel pressure, requiring precise adjustment.
Ignition System:
Marelli electronic ignition components can be prone to failure; Lucas components are also sometimes found.
Electrical System:
Aging wiring harnesses and connectors can lead to intermittent issues.
Suspension Bushings:
Wear on rubber bushings is common due to age and mileage, affecting ride and handling.
Exhaust System:
Corrosion and wear on exhaust components, especially in humid climates.
Air Conditioning:
Older AC systems may require component upgrades or refrigerant conversion to modern standards.
