Segment:
Ultra-Luxury Performance Sedan
Target Audience:
Discerning Owners, Professional Technicians specializing in Mercedes-Benz, Enthusiasts
Competitors:
BMW 7 Series (760Li), Audi A8 W12, Bentley Continental Flying Spur, Rolls-Royce Ghost
Performance Focus:
Hand-built AMG V12 Bi-Turbo engine, superior acceleration, high-speed stability
Luxury Appointments:
Premium interior materials, advanced comfort features, sophisticated technology
Manual Utility:
Official and comprehensive technical data, essential for accurate maintenance and repair, backed by manufacturer's engineering.
Primary Coverage:
Service and Repair
Additional Coverage:
Diagnostics, Troubleshooting, Maintenance, Electrical Schematics, Component Removal/Installation
Estimated Pages:
Thousands (Software Estimate)
Type:
Digital Service Manual / Workshop Manual Software
Format:
Software (Likely PDF or proprietary application with search functionality)
Powertrain:
Engine (M275 Bi-Turbo V12), Transmission (722.6 5-Speed Automatic), Differential, Drive Shafts, Axles
Chassis:
Suspension (ABC - Active Body Control), Steering System, Brake System (including Ceramic Brakes if equipped), Wheels and Tires
Electrical:
Engine Control Module (ECM), Transmission Control Module (TCM), Body Control Module (BCM), Infotainment System, Lighting System, Power Accessories, CAN Bus Communication, Diagnostic Trouble Codes (DTCs)
Body:
Exterior Body Panels, Interior Trim, Seats, Doors, Windows, Sunroof, HVAC System
Maintenance:
Scheduled Maintenance Intervals, Fluid Level Checks and Changes, Filter Replacements, Spark Plug Replacement, Belt Inspection and Replacement
Diagnostics And Troubleshooting:
Symptom-based diagnosis, Diagnostic Trouble Code (DTC) interpretation and resolution, Component testing, Wiring diagrams for fault finding
Repair And Overhaul:
Engine disassembly and reassembly, Transmission repair, Suspension component replacement, Brake system overhaul, Electrical component diagnosis and repair
Special Tools And Equipment:
Identification and usage of Mercedes-Benz specific tools for various procedures
Depth:
Comprehensive: Covers routine maintenance to full engine and transmission rebuilds, advanced diagnostics, and detailed electrical system schematics.
Engine Type:
V12 Bi-Turbo
Engine Displacement:
5.5 Liters (5500 cc)
Bore X Stroke:
82.6 mm x 103.0 mm
Valve Train:
SOHC, 3 valves per cylinder (2 intake, 1 exhaust) per cylinder bank with adjustable camshaft timing
Horsepower:
510 HP (380 kW) @ 5250 rpm
Torque:
575 lb-ft (779 Nm) @ 1800-3600 rpm
Fuel Delivery:
Sequential Multi-Point Fuel Injection (SFI), Twin Turbochargers with Intercoolers
Fuel Type:
Premium Unleaded (91 Octane or higher recommended)
Engine Control Unit:
Bosch ME 2.8.5 or similar generation ECU
Transmission Type:
5-Speed Automatic with AMG SPEEDSHIFT
Gear Ratios:
Specific ratios are detailed within the manual for each gear, including reverse. (e.g., 1st: 3.157, 2nd: 2.112, 3rd: 1.413, 4th: 1.000, 5th: 0.728, Reverse: 2.950)
Shift Modes:
Comfort (C), Sport (S), Manual (M) with paddle shifters
Transmission Fluid Type:
MB 236.14 (e.g., Shell ATF 134, Mobil ATF 134)
Transmission Fluid Capacity:
Approximately 8.5 - 9.5 Liters (check manual for precise fill procedure and capacity under various conditions).
Crash Test Results:
While specific 2009 S65 AMG ratings may vary by region, the W221 platform generally received high marks in NHTSA and IIHS testing for its era, benefiting from advanced safety structures.
Brake System:
Large Ventilated Disc Brakes, ABS, EBD, Brake Assist, Optional Ceramic Composite Brakes
Stability Control:
ESP (Electronic Stability Program) with AMG tuning
Suspension:
Active Body Control (ABC) for enhanced stability and ride control
Airbags:
Multi-stage front airbags, side airbags, head curtain airbags, rear side airbags, knee airbags (driver)
Seat Belts:
Pre-tensioning and force-limiting seat belts, Belt extenders
Chassis Structure:
High-strength steel chassis and crumple zones
Command System:
COMMAND APS (with Navigation, CD/DVD Changer, Bluetooth Connectivity, Voice Control)
Audio System:
Harman Kardon LOGIC 7 Surround Sound System
Adaptive Cruise Control:
DISTRONIC PLUS (if equipped)
Parking Assistance:
PARKTRONIC parking sensors, REARVIEW CAMERA (if equipped)
Lighting:
Bi-Xenon Headlights with Active Curve Illumination, LED Daytime Running Lights
Telematics:
Mercedes-Benz mbrace (if subscribed and functional for the model year)
Major Service A:
Typically every 10,000 miles or 12 months, whichever comes first. Includes oil and filter change, tire rotation, etc. (Refer to manual for exact W221 intervals).
Major Service B:
Typically every 20,000 miles or 24 months. Includes all 'A' service items plus brake fluid change, cabin filter replacement, and comprehensive inspection.
Spark Plugs:
Recommended replacement every 30,000 - 40,000 miles for V12 models (refer to manual for exact spec, often high-performance plugs are required).
Engine Oil Type:
MB 229.5 (e.g., Mobil 1 0W-40, Castrol Edge 0W-40)
Engine Oil Capacity:
Approximately 8.5 Liters (8.9 US Quarts) (check manual for exact fill procedure).
Coolant Type:
MB 325.0 (Antifreeze/Coolant, Blue)
Brake Fluid Type:
DOT 4 Plus (MB 331.0)
Abc Suspension:
Common issues can include ABC pump leaks, strut seal failures, and sensor malfunctions. Regular fluid changes and inspections are critical.
Ignition Coils:
V12 engines can be sensitive to ignition coil health; check for misfires or rough running. Replacement is usually on a per-cylinder basis.
Turbocharger System:
Regular inspection of boost pressure and wastegate operation is important. Turbo seals can degrade over time.
Electronics:
As with many complex modern vehicles, electrical gremlins can occur. The manual's diagnostic sections are invaluable for troubleshooting CAN bus communication or module failures.
Mercedes Benz Legacy:
Over a century of automotive innovation, synonymous with luxury, engineering excellence, and safety.
S Class Development:
The S-Class has consistently represented the pinnacle of Mercedes-Benz technology and luxury, with each generation setting new benchmarks.
Amg Integration:
AMG, now fully integrated, specializes in high-performance variants, transforming luxury sedans into potent performance machines.
W221 Generation:
The W221 S-Class generation was produced from 2005 to 2013. The S65 AMG was a flagship model within this generation.
Assembly Location:
Sindelfingen, Germany
