Segment:
Ultra-luxury Grand Tourer Coupe
Brand Perception:
Represents the pinnacle of Mercedes-Benz engineering, luxury, and performance for its era.
Competitors:
BMW 8 Series, Lexus SC430, Jaguar XK Series, Aston Martin DB7
Engine:
Naturally Aspirated 5.8L V12 (M137)
Suspension:
Standard Active Body Control (ABC)
Luxury Appointments:
Premium leather, wood trim, advanced COMAND system, dual-zone climate control
Systems Covered:
Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, HVAC, Electrical, Body, Interior, Diagnostics, Maintenance, Troubleshooting, Wiring Diagrams, Specifications
Type:
Official Service and Repair Manual Software
Format:
Software (Digital)
Engine Mechanical:
V12 Engine (M137), Cylinder Heads, Pistons, Connecting Rods, Crankshaft, Timing System, Lubrication System, Cooling System
Engine Management:
ME 2.8 Engine Control Unit (ECU), Ignition System, Fuel Injection System, Emissions Control System, Sensor Data, Diagnostic Trouble Codes (DTCs)
Transmission:
5G-TRONIC (722.6) Automatic Transmission, Gearbox Control Module (GCM), Hydraulic System, Torque Converter, Shift Solenoids, Fluid Specifications
Drivetrain:
Rear Wheel Drive, Driveshafts, Differentials, Axles
Suspension Steering:
Active Body Control (ABC), Independent Front and Rear Suspension, Shock Absorbers, Springs, Control Arms, Power Steering System, Steering Column, Steering Gear
Brakes:
Anti-lock Braking System (ABS), Electronic Stability Program (ESP), Brake Discs, Brake Pads, Brake Calipers, Hydraulic Lines, Parking Brake System
HVAC:
Automatic Climate Control, Air Conditioning Compressor, Refrigerant System, Heater Core, Blower Motor, Climate Control Sensors
Electrical Lighting:
12V Electrical System, Battery, Alternator, Starter Motor, Lighting System (Headlights, Taillights, Interior), Fuses, Relays, Switches
Body Interior:
Body Panels, Doors, Hood, Trunk, Glass, Seats, Trim Panels, Convertible Top (if applicable to this specific manual's scope for the CL)
Comfort Convenience:
Power Seats, Memory Seats, Sunroof, Power Windows, Central Locking System, Keyless Entry
Infotainment:
COMAND (Cockpit Management and Navigation) System, Radio, CD Player, Navigation System, Speaker System
Maintenance:
Oil Changes, Filter Replacements (Oil, Air, Fuel, Cabin), Spark Plug Replacement, Fluid Checks and Top-offs, Belt Inspections and Replacements, Brake Pad and Rotor Replacement, Tire Rotation and Balancing
Troubleshooting:
Diagnostic procedures for common and uncommon faults, symptom-based troubleshooting guides, use of diagnostic scan tools
Repair Rebuild:
Engine component removal, inspection, and installation; transmission overhaul; suspension component replacement; brake system repair; electrical component repair; body panel repair
Diagnostics:
OBD-II scanning, live data interpretation, sensor testing, actuator testing, ECU diagnosis
Wiring Diagrams:
Comprehensive electrical wiring diagrams for all systems, component locations, connector pinouts
Depth:
Complete Professional Level - Covers everything from basic fluid changes to full engine and transmission rebuilds, complex electrical diagnostics, and bodywork.
System Name:
COMAND (Cockpit Management and Navigation)
Features:
AM/FM Radio, CD Player, Cassette Player (early versions), GPS Navigation, On-board Computer
Cruise Control:
Standard Cruise Control, likely with Distance Pilot DISTRONIC (optional)
Phone Integration:
Optional hands-free telecommunication system (e.g., Motorola StarTAC, later Bluetooth compatibility)
Headlights:
Xenon HID headlights with automatic leveling and cleaning system
Oil Change Interval:
Every 10,000 miles or 12 months, whichever comes first (using synthetic oil)
Major Service A:
Inspect all systems, check fluid levels, replace engine oil and filter, inspect brakes and tires. Typically around 15,000-20,000 miles.
Major Service B:
Includes Service A plus replacement of air filters, cabin filters, spark plugs (at higher mileage), brake fluid flush, transmission fluid and filter change (at higher mileage). Typically around 30,000-50,000 miles for fluids and spark plugs.
Brake Fluid Type:
DOT 4 (Mercedes-Benz Specification 331.0)
Coolant Capacity:
Approximately 13 Liters
Abc Suspension:
Hydraulic leaks, strut failures, pump issues, and sensor malfunctions are common. Requires specialized knowledge for repair.
Ignition Coils:
Misfires due to failing ignition coils, particularly on the V12 engine, are a known concern.
ECU Failures:
Engine Control Unit (ECU) failures can occur, leading to various drivability issues.
Wiring Harnesses:
Degradation of wiring insulation, especially in engine bay heat, can lead to electrical gremlins.
Door Locks Windows:
Issues with door lock actuators, window regulators, and central locking systems can arise.
