Positioning:
Exotic Supercar.
Competitors:
Ferrari F40/F355, McLaren F1, Porsche 911 Turbo (993).
Distinguishing Features:
All-wheel drive (VT), scissor doors, V12 engine, iconic Italian design, focus on raw performance.
Manual Purpose:
Designed for both DIY enthusiasts and professional mechanics to maintain, repair, and diagnose the Lamborghini Diablo VT.
Primary Coverage:
Workshop Service Repair
Additional Coverage:
General Maintenance, Troubleshooting, Engine, Transmission, Brakes, Electrical System, Suspension, Steering, Cooling System, Fuel System, Emission System, HVAC, Chassis, Body, Restraint System, Interior, Differential, Axle
Estimated Pages:
Hundreds (specific count not provided, but implies a substantial volume)
Type:
Factory Service Repair Manual
Engine Mechanical:
Complete engine disassembly, assembly, diagnosis, repair, including specific details on the V12 engine components.
Engine Management:
Fuel injection (Lambda control), ignition system, engine control unit (ECU) diagnostics and parameters, emissions control systems.
Transmission:
Service and repair for the AWD system and manual transmission, including fluid capacities and specifications.
Brakes:
Detailed procedures for brake system maintenance, repair, bleeding, and component replacement.
Electrical System:
Comprehensive coverage including detailed wiring diagrams, troubleshooting guides, starter, alternator, battery, lighting, and accessory systems.
Suspension Steering:
Front and rear suspension component diagnosis, repair, alignment procedures, and steering system service.
Cooling Fuel:
Cooling system diagnostics and repair, fuel system components, fuel pump, injectors, and fuel tank service.
Chassis Body:
Body panel repair, door mechanisms, interior trim, chassis components, and structural elements.
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system service, diagnosis, and refrigerant handling.
Restraint Interior:
Seatbelt systems, airbag system (if applicable for the year), and interior component removal/installation.
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication points, and inspections.
Troubleshooting:
Systematic diagnostic procedures for common and complex issues, fault code interpretation (if applicable).
Repair Rebuild:
Step-by-step instructions for component disassembly, repair, reassembly, and adjustments for all major vehicle systems.
Diagnostics:
Detailed diagnostic trees, electrical circuit tracing, and specific testing procedures for various components.
Depth:
Comprehensive (covers full disassembly and reassembly of most major components, advanced diagnostics).
Detail Level:
Factory-level detail with step-by-step instructions, notes, cautions, warnings, and detailed illustrations/photos.
Engine Type:
Naturally aspirated V12
Displacement:
5.7 Liters (5706 cc)
Bore X Stroke:
82 mm x 92.8 mm
Horsepower:
Approx. 492 hp @ 7200 rpm
Torque:
Approx. 428 lb-ft (580 Nm) @ 5500 rpm
Fuel Delivery:
Bosch KE-Jetronic Fuel Injection (mechanical/electronic hybrid)
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
Engine Control:
ECU (Electronic Control Unit) controlling fuel injection and ignition timing.
Drive Type:
All-Wheel Drive (VT - Viscous Traction)
Gear Ratios:
Specific ratios detailed within the manual.
Manual Transmission Fluid:
Specific viscosity and type (e.g., GL-5, SAE 75W-90) detailed in manual.
Viscous Coupling Fluid:
Specific type required for the viscous coupling unit in the AWD system.
Crash Test Ratings:
No formal crash test ratings typically available for low-volume exotics of this era.
Active Safety:
All-wheel drive (VT), powerful braking system (ventilated discs, multi-piston calipers).
Passive Safety:
Reinforced chassis, seat belts. Airbag systems may be present but are not as advanced as modern standards.
Infotainment System:
Basic factory audio system, typically cassette or early CD player. Climate controls are manual or semi-automatic.
Driver Assistance Features:
Limited by modern standards. Primary features are the VT all-wheel-drive system for enhanced traction and ABS (Anti-lock Braking System).
Connectivity Options:
None by modern standards (no Bluetooth, USB, etc.).
Oil Change:
Typically every 7,500-10,000 km or annually, consult manual for specifics.
Major Service:
Timing belt (if applicable to engine configuration, check manual), spark plugs, and fluid flushes at higher mileage intervals (e.g., 30,000-50,000 km).
Engine Oil:
Refer to manual for exact viscosity (e.g., SAE 10W-60 or 15W-50) and API/ACEA specifications.
Coolant:
Ethylene glycol-based antifreeze coolant, 50/50 mix with distilled water.
Brake Fluid:
DOT 3 or DOT 4 high-performance brake fluid.
Common Problems:
Electrical gremlins are not uncommon in exotics of this era. Clutch wear, aging rubber components (hoses, seals), potential for overheating if cooling system is neglected, and early generation AWD system complexity.
Preventative Measures:
Regular fluid changes, thorough inspection of wiring harnesses, proactive replacement of aging components, and proper cooling system maintenance.
Heritage:
Lamborghini, known for its extreme performance and flamboyant styling, has a rich history dating back to the 1960s with iconic models like the Miura and Countach.
Diablo Lineage:
The Diablo succeeded the Countach and was Lamborghini's flagship supercar from 1990 to 2001. The VT variant, introduced in 1993, added all-wheel drive for improved traction and handling.
Production Era:
1990-2001 (Diablo line), 1993-1998 (Diablo VT)
