Vehicle Class:
Grand Tourer (GT)
Target Audience:
Discerning luxury automotive enthusiasts seeking performance, style, and comfort.
Direct Competitors:
Mercedes-Benz CL-Class, Bentley Continental GT (entry-level), Maserati GranTurismo
Design Philosophy:
Sleek, elongated coupe/convertible profile with a focus on luxurious comfort and dynamic driving.
Performance Credentials:
Reputation for potent engines and refined chassis dynamics, characteristic of BMW's 'Ultimate Driving Machine' ethos.
Uniqueness:
Provides the exact, specific repair and maintenance data used by authorized BMW technicians, ensuring dealership-level accuracy.
Engine Mechanical:
Complete overhaul, diagnostics, timing systems, lubrication, cooling, emissions control
Engine Electrical:
Ignition, fuel injection, sensor diagnostics, ECU, starter, alternator
Transmission Automatic:
Removal, installation, overhaul, diagnostics, fluid service, control module
Transmission Manual:
Removal, installation, overhaul, diagnostics, clutch service
Drivetrain:
Driveshafts, differentials, CV joints, wheel bearings
Suspension:
Front and rear suspension components, dampers, springs, bushings, alignment specifications
Steering:
Power steering system, steering rack, column, tie rods, diagnostics
Brakes:
Hydraulic system, ABS, DSC, brake calipers, rotors, pads, fluid specifications, bleeding procedures
Electrical System:
Wiring diagrams, fuse box layouts, relay assignments, lighting, power windows, mirrors, seats
Bodywork Interior:
Body panel removal/installation, interior trim, seats, dashboard, door mechanisms
HVAC:
Climate control system, A/C refrigerant, compressor, evaporator, heater core, diagnostics
Infotainment Audio:
Radio, navigation, speakers, iDrive system integration, diagnostics
Safety Systems:
Airbag system, SRS module, seatbelt pre-tensioners, parking sensors
Routine Maintenance:
Oil changes, filter replacements, spark plug changes, fluid checks and top-offs
Troubleshooting:
Diagnostic fault codes (DTCs), symptom-based troubleshooting guides
Major Repairs:
Engine rebuilds, transmission overhauls, complete brake system overhauls
Component Replacement:
Detailed steps for replacing virtually all mechanical and electrical components
Diagnostic Procedures:
Step-by-step guides for diagnosing common and complex issues
Wiring Diagrams:
Comprehensive, system-specific wiring schematics
Torque Specifications:
Precise torque values for all critical fasteners
Special Tools:
Identification and usage of BMW-specific tools
Depth:
Comprehensive (from basic maintenance to complete engine/transmission rebuilds and advanced electrical diagnostics)
Accuracy:
Vehicle-specific, factory-level accuracy
Engine Code Example:
N62 (V8) or N54/N55 (Inline-6 Twin-Turbo)
Displacement Example 1:
4.8L (V8)
Horsepower Example 1:
360 hp @ 6300 rpm
Torque Example 1:
360 lb-ft @ 3400 rpm
Displacement Example 2:
3.0L (Inline-6 Twin-Turbo)
Horsepower Example 2:
300 hp @ 5800 rpm (N54) / 306 hp @ 5800 rpm (N55)
Torque Example 2:
300 lb-ft @ 1800-4500 rpm (N54) / 300 lb-ft @ 1200-5000 rpm (N55)
Engine Technology:
Valvetronic, Double VANOS, Twin-Turbo (depending on model)
Fuel Delivery:
High-pressure direct injection (specific models)
Fuel Type:
Premium Unleaded Gasoline (91 RON or higher recommended)
Oil Service:
Typically every 10,000-15,000 miles or 1 year, indicated by the Condition Based Service (CBS) system.
Brake Fluid Flush:
Every 2 years
Spark Plugs:
Varies by engine; e.g., N54/N55 typically ~60,000 miles, N62 ~100,000 miles.
Engine Oil Specification:
BMW Longlife-01 (LL-01) or BMW Longlife-04 (LL-04) depending on region. Viscosity typically 0W-30 or 5W-30. Consult manual.
Coolant Specification:
BMW Engine Coolant/Antifreeze Concentrate (G48)
Power Steering Fluid Spec:
Pentosin CHF 11S or equivalent (refer to manual)
Common Wear Items:
Valve stem seals (N62), oil separator/PCV system, VANOS solenoids, ignition coils, front suspension bushings, water pump/thermostat.
Electrical Quirks:
iDrive system glitches, headlight module failures, door seal issues (convertible).