Segment:
Full-Size Luxury Sedan
Target Audience:
Discerning buyers seeking ultimate comfort, technology, and prestige
Key Competitors 2006:
BMW 7 Series, Audi A8, Lexus LS, Jaguar XJ, Porsche Panamera (later model)
Innovation:
Introduction of advanced driver-assistance systems, advanced suspension technology (ABC), and sophisticated infotainment.
Design:
Elegant and imposing design, representing the pinnacle of Mercedes-Benz styling.
Geographic Coverage:
Global
Market Segments:
North America, Europe, Asia, Australia
Estimated Page Count:
Approximately 3500+
Type:
Factory Service Repair Workshop Manual
Scope:
Comprehensive Diagnostic and Repair Procedures
Primary Language:
English
Digital Format:
PDF Download
Access Method:
Instant Download
Licensing:
No Extra Fees, No Expiry Dates
Powertrain:
Engine Mechanical, Engine Management, Fuel System, Exhaust System, Cooling System, Lubrication System, Ignition System
Drivetrain:
Transmission (Automatic), Drive Axles, Differentials, Transfer Case (if applicable)
Chassis:
Suspension (Front and Rear), Steering System, Brake System (Hydraulic and Electronic), ABS, ESP
Body:
Body Exterior, Body Interior, Doors, Windows, Seats, HVAC System, Body Control Modules
Electrical:
Electrical Systems, Battery, Charging System, Starting System, Lighting, Instrumentation, Infotainment, CAN Bus Architecture
Maintenance:
Scheduled Maintenance, Fluid Changes, Filter Replacements, Inspections
Diagnostics:
Troubleshooting Guides, Diagnostic Trouble Codes (DTCs), Component Testing
Repair:
Component Removal and Installation, Sub-assembly Overhaul, Major Component Repair
Calibration:
Sensor Calibration, Control Module Programming, Alignment Procedures
Technical Data:
Specifications, Tolerances, Torque Values, Wiring Diagrams
Depth:
Advanced Diagnostics, Detailed Component Disassembly and Reassembly, System Integration
Expertise Level:
Professional Technician and Advanced DIYer
Engine Code:
M273 (Common for 2006 S550)
Engine Type:
4.7L (4663cc) V8 Naturally Aspirated
Horsepower:
Approx. 382 hp @ 6000 rpm
Torque:
Approx. 391 lb-ft @ 2800-4000 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI), Sequential Multi-Port Fuel Injection
Fuel Type:
Premium Unleaded Gasoline (91 RON or higher recommended)
ECU:
ME-SFI 7.0 (or similar generation)
Catalytic Converter:
Dual Three-Way Catalytic Converters
Bore X Stroke:
92.9 mm x 86.0 mm
Compression Ratio:
10.7:1
Coolant Type:
MB Approved Antifreeze/Coolant (e.g., G48 or similar)
Transmission Type:
7G-Tronic Automatic Transmission
Gears:
7 Forward, 1 Reverse
Shift Modes:
Comfort (C) and Sport (S)
Transmission Fluid Type:
MB Approved Automatic Transmission Fluid (e.g., MB 236.10, MB 236.12, or MB 236.14 depending on specific fill)
Transmission Fluid Capacity
Capacity Approx:
8.0 - 9.0 Liters (dry fill)
Length:
Approx. 5077 mm (200 inches)
Width:
Approx. 1871 mm (73.7 inches)
Height:
Approx. 1477 mm (58.1 inches)
Wheelbase:
Approx. 3035 mm (119.5 inches)
Curb Weight:
Approx. 1970 - 2070 kg (4343 - 4564 lbs)
Gross Vehicle Weight Rating:
Approx. 2560 kg (5644 lbs)
Trunk Volume:
Approx. 560 Liters (19.8 cu ft)
NHTSA Rating 2006:
N/A (Not uniformly applied in 2006 for this class and market)
ABS:
Anti-lock Braking System (ABS)
Esp:
Electronic Stability Program (ESP)
Braking System:
4-wheel disc brakes with Brake Assist (BAS)
Suspension Tech:
Active Body Control (ABC) - advanced hydraulic suspension system
Airbags:
Front, front side, rear side, window airbags, and potentially knee airbags.
Seatbelts:
Pretensioning seatbelts with force limiters
Driver Assistance:
Optional DISTRONIC adaptive cruise control, PRE-SAFE® occupant protection system
System Name:
COMAND APS (Cockpit Management and Navigation)
Features:
Navigation system, Radio, CD/DVD player, optional Harman Kardon surround sound system, Bluetooth connectivity, voice control.
Adaptive Cruise Control:
DISTRONIC
Pre Safe System:
PRE-SAFE® - proactively prepares the cabin for an impending collision.
Parking Assistance:
Optional PARKTRONIC parking sensors and rearview camera.
Connectivity Options:
Bluetooth for hands-free calling, optional Media Interface for external audio devices.
Comfort Features:
Multi-contour massaging seats, heated and ventilated seats, panoramic sunroof, keyless-go entry and ignition.
Minor Service:
Every 10,000 miles or 12 months (whichever comes first) - Oil & filter change, inspection.
Major Service:
Variable, based on 'Service A' or 'Service B' indicators (typically every 30,000-60,000 miles or 2-3 years) - Includes additional inspections, fluid changes (transmission, brake, coolant), spark plugs, etc.
Engine Oil:
MB 229.5, 229.51 (e.g., Mobil 1 0W-40, Castrol Syntec 0W-30/5W-30)
Brake Fluid:
DOT 4 Plus (MB 331.0)
Power Steering Fluid:
MB Approved Hydraulic Fluid (e.g., Pentosin CHF 11S or MB 345.0 for Active Body Control)
Common Problems:
Active Body Control (ABC) system leaks/failures, SBC (Sensors, Brake Control) system issues (though less common in 2006 models which transitioned from SBC), ignition coil failures, oil leaks (valve cover, oil cooler seals), air suspension compressor issues (if equipped with air suspension). Transmission control module issues.
Maintenance Recommendations:
Regularly inspect ABC system for leaks, ensure correct fluid levels, timely transmission fluid and filter changes are crucial for longevity.
Heritage:
Mercedes-Benz has a long-standing history of producing luxury and innovative vehicles since the early 20th century.
W221 Generation:
Fourth generation of the S-Class, succeeding the W220. Introduced for the 2006 model year.
Design Philosophy:
Marked a shift towards more sculpted lines and advanced technology compared to its predecessor.
Production Years:
2005-2013
Manufacturing Location:
Sindelfingen, Germany
Initial Reception:
The W221 S-Class generally received positive reviews for its technology, comfort, and design upon release.
Industry Awards General:
While specific awards for the 2006 model year might vary, the S-Class lineage consistently earns accolades for luxury, safety, and innovation from automotive publications worldwide.
