Vehicle Class:
Luxury Grand Tourer (GT)
Target Audience:
Discerning buyers seeking performance, luxury, and advanced engineering.
Key Competitors Era:
Mercedes-Benz SL, Porsche 911, Jaguar XJS.
Design Philosophy:
Aerodynamic coupe styling with a focus on driver engagement and long-distance comfort.
Engineering Highlights:
Advanced chassis dynamics, powerful V8 and V12 engines, and a sophisticated electrical architecture for its time.
Manual Value Proposition:
Empowers owners and independent mechanics with the precise information to maintain and repair this complex vehicle, saving significant costs.
Engine Management:
Driveability, diagnostics, engine control unit (ECU) functions, sensor inputs, actuator outputs.
Engine:
Complete overhaul procedures, component identification, specifications, and repair for V8 and V12 engines.
Ignition System:
Ignition coil diagnosis, spark plug specifications, timing adjustments, electronic ignition control.
Fuel System:
Fuel injection system diagnosis, fuel pump specifications, injector testing, fuel pressure regulation.
Cooling System:
Radiator, water pump, thermostat, cooling fan operation, coolant specifications, leak detection, bleeding procedures.
Exhaust System:
Catalytic converter function, oxygen sensors, exhaust pipe routing, emissions control systems.
Transmission Manual:
Clutch operation, gearbox disassembly and reassembly, gear selection mechanisms, fluid specifications.
Transmission Automatic:
Torque converter operation, hydraulic control, electronic transmission control unit (TCM), fluid specifications, repair procedures.
Driveshaft And Final Drive:
U-joints, driveshaft balance, differential service, axle shaft inspection, fluid specifications.
Brakes:
ABS system diagnosis, brake pad and rotor specifications, brake fluid type, bleeding procedures, parking brake service.
Suspension And Steering:
Front and rear suspension components, steering rack, power steering system, wheel alignment specifications.
Body And Interior:
Body panel removal, door mechanisms, interior trim, seat adjustments, convertible top operation (if applicable).
Electrical System:
Wiring diagrams, component testing, fuses and relays, battery, alternator, starter, lighting systems, power accessories.
Maintenance Schedule:
Recommended service intervals for oil changes, fluid checks, filter replacements, and component inspections.
Repair Procedures:
Step-by-step instructions for all major mechanical and electrical repairs.
Troubleshooting:
Diagnostic charts and procedures for identifying and resolving common and complex issues.
Technical Specifications:
Detailed specifications for all components, including torque values, clearances, fluid capacities, and electrical resistance.
Lubrication:
Specific lubrication points and recommended lubricant types and grades.
Depth Of Coverage:
Factory-level detail, suitable for professional technicians and advanced DIY enthusiasts.
Engine Options:
Available with V8 (4.0L and 4.4L) and V12 (5.0L) engines.
Engine Code Example V8:
M62B44 (4.4L V8)
Engine Code Example V12:
M73B54 (5.4L V12)
Horsepower Range:
Approximately 282 hp (V8) to 326 hp (V12).
Torque Range:
Approximately 400 Nm (V8) to 490 Nm (V12).
Fuel Delivery:
Electronic Fuel Injection (EFI), Sequential Multi-Point Fuel Injection (SFI).
Fuel Type:
Premium Unleaded Gasoline
Engine Management System:
Bosch Motronic (e.g., Motronic M5.2, M5.2.1, M7.1)
Body Styles:
2-door Coupe
Length:
Approximately 4,780 mm (188.2 in)
Width:
Approximately 1,855 mm (73.0 in)
Height:
Approximately 1,370 mm (53.9 in)
Curb Weight Range:
Approximately 1,700 kg - 1,900 kg (3,748 lbs - 4,189 lbs), depending on engine and equipment.
Infotainment Features Era:
Optional Hi-Fi audio systems, cassette player, CD changer compatibility, early navigation systems.
Driver Assistance Systems:
Cruise control, parking sensors (rear), ASC+T.
Connectivity Features Era:
Limited by modern standards; primarily focused on onboard diagnostics and basic comfort features.
Oil Change Interval:
Typically every 10,000-15,000 miles or annually, as per BMW's Condition Based Service (CBS) or manual recommendations.
Brake Fluid Change Interval:
Every 2 years.
Coolant Change Interval:
Every 2-3 years or as recommended by BMW (specific to coolant type).
Engine Oil Spec V8:
BMW Longlife-01 (LL-01) approved synthetic oil, e.g., SAE 0W-40 or 5W-30.
Engine Oil Spec V12:
BMW Longlife-01 (LL-01) approved synthetic oil, e.g., SAE 0W-40 or 5W-30.
Transmission Fluid Manual:
GL-4 or GL-5 gear oil, specific viscosity grade to be confirmed in manual (e.g., 75W-90).
Transmission Fluid Automatic:
BMW ATF Dexron III or equivalent for transmissions like 5HP30.
Common Maintenance Items:
VANOS system (especially on M60/M62), cooling system components (water pump, hoses), ignition coils, MAF sensors, door seal degradation.
Specific Repair Challenges:
Complexity of V12 engine maintenance, specialized tools often required for VANOS and timing procedures.
