Positioning:
A high-performance grand tourer, the M6 represented BMW's pinnacle of automotive engineering and luxury in its era.
Competitors:
Competed with other luxury performance coupes like the Porsche 911, Ferrari 400i, and Aston Martin V8 Vantage.
Design Philosophy:
Iconic coupe styling, powerful naturally aspirated engine, and driver-focused interior.
Performance Focus:
Engineered for exhilarating performance and exceptional handling characteristics.
Engine Mechanical:
Detailed procedures for engine disassembly, assembly, overhaul, timing, and component inspection.
Engine Management System:
Diagnosis and repair of electronic fuel injection, ignition systems, and sensor operations.
Transmission:
Service and repair of manual and automatic transmissions, including clutch, gearbox, and differential.
Braking System:
Inspection, repair, and bleeding of ABS and standard braking systems, including component replacement.
Suspension Steering:
Service for front and rear suspension, steering rack, power steering system, and wheel alignment.
Electrical System:
Wiring diagrams, troubleshooting for lighting, starting, charging, instrumentation, and accessories.
Fuel System:
Diagnosis and repair of fuel pump, injectors, lines, and fuel tank components.
Cooling Heating Air Conditioning:
Repair and maintenance of radiator, fan, water pump, heater core, and A/C system components.
Bodywork Interior:
Procedures for body panel removal/installation, interior trim, and glass replacement.
Exhaust System:
Service and replacement of exhaust manifold, catalytic converter, mufflers, and pipes.
Scheduled Maintenance:
Comprehensive periodic maintenance schedules and procedures.
Troubleshooting:
Detailed diagnostic flowcharts and fault finding for various systems.
Removal Installation:
Step-by-step instructions for removing and installing all major components and sub-assemblies.
Disassembly Assembly:
Detailed procedures for taking apart and reassembling components for repair or rebuild.
Adjustments:
Precise instructions for adjusting various systems, including ignition timing, idle speed, and brake bias.
Tightening Torques:
Comprehensive list of torque specifications for all critical fasteners.
Depth Of Coverage:
Bumper-to-bumper coverage, suitable for both DIY enthusiasts and professional mechanics.
Illustrations Diagrams:
Detailed pictorial diagrams, exploded views, and photos for clarity.
Special Tools:
References to specific BMW service tool numbers and usage illustrations.
Wear Limits:
Includes specifications for component wear limits and allowable tolerances.
Construction Function:
Explanations of component construction and operational principles for better understanding.
Engine Type:
Naturally Aspirated Inline-6 (I6)
Displacement:
3.5 Liters (3453 cc)
Valvetrain:
DOHC (Dual Overhead Camshafts), 4 valves per cylinder
Horsepower:
256 hp (191 kW) @ 6500 rpm (approx.)
Torque:
243 lb-ft (330 Nm) @ 4500 rpm (approx.)
Fuel Delivery:
Bosch Motronic Electronic Fuel Injection (EFI)
Fuel Type:
Premium Unleaded Gasoline
Compression Ratio:
9.5:1 (approx.)
Engine Construction:
Aluminum alloy cylinder head, cast iron block
Oil Change Interval:
Typically every 5,000-7,500 miles (8,000-12,000 km) or as per specific service schedule.
Tune Up Interval:
Spark plugs, filters, and inspections recommended every 15,000-30,000 miles (24,000-48,000 km).
Engine Oil Type:
Refer to manual for specific viscosity grade (e.g., 20W-50, 15W-40 based on climate), API SG or higher recommended.
Coolant Type:
BMW Blue Antifreeze/Coolant or equivalent ethylene glycol-based coolant.
Brake Fluid Type:
DOT 4 approved brake fluid.
Transmission Fluid Manual:
GL-4 or GL-5 gear oil, specific viscosity to be confirmed in manual.
Transmission Fluid Automatic:
Dexron III or equivalent ATF.
Rust Corrosion:
Common on older vehicles, particularly wheel arches, rocker panels, and sunroof areas.
Fuel Delivery System:
Potential issues with fuel pumps, injectors, and fuel pressure regulators over time.
Electrical Gremlins:
Aging wiring harnesses, connectors, and relays can lead to intermittent electrical problems.
Suspension Wear:
Worn control arm bushings, ball joints, and shock absorbers are common due to age and mileage.
