Vehicle Segment:
Full-size Luxury Sedan
Competitors:
BMW 7 Series, Audi A8, Lexus LS, Porsche Panamera
Key Selling Points:
Unparalleled ride comfort, advanced technology, sophisticated interior, powerful engine options
Luxury Appointments:
Premium leather, wood trim, advanced ambient lighting, massaging seats
Technological Advancements:
COMAND infotainment, DISTRONIC PLUS adaptive cruise control, NIGHT VIEW ASSIST, PARKTRONIC
Powertrain Options:
Wide range of V6, V8, and V12 gasoline engines, alongside diesel and hybrid options in some markets
Primary Coverage:
Complete Workshop Service and Repair
Diagnostic Coverage:
Comprehensive diagnostic procedures and troubleshooting
Maintenance Coverage:
Scheduled maintenance, fluid changes, inspections
Engine Coverage:
All W221 engine variants for 2010 model year
Transmission Coverage:
Automatic transmission service and repair
Electrical Coverage:
Complete electrical system diagnosis and repair, wiring diagrams
Chassis Coverage:
Suspension, steering, brakes, exhaust systems
Body Coverage:
Body panel removal, repair, interior trim
HVAC Coverage:
Climate control system diagnosis and repair
Safety System Coverage:
Airbag system, ABS, ESP diagnostics and repair
Estimated Page Count:
1000+
Manual Type:
Workshop Service Repair Manual
Powertrain:
Engine mechanical, engine management, fuel delivery, ignition, cooling, lubrication, exhaust
Transmission:
7G-TRONIC automatic transmission
Suspension Steering:
AIRMATIC suspension, Active Body Control (ABC), steering system, power steering
Brakes:
Brake system, ABS, BAS, ESP, SBC (if applicable, though less common on 2010 W221), brake fluid specifications
Electrical Electronics:
Engine control unit (ECU), body control module (BCM), infotainment, lighting, comfort systems, CAN bus communication, diagnostic trouble codes (DTCs)
Body Exterior:
Body panels, doors, hood, trunk, glass, seals, exterior trim
Body Interior:
Seats, dashboard, door panels, headliner, carpets, interior trim components
Climate Control:
Automatic climate control, A/C system, heater core, refrigerant, blower motor
Safety Restraint:
Airbags, seatbelt pre-tensioners, SRS system
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, tire rotations
Troubleshooting:
Step-by-step diagnostic procedures for various symptoms and fault codes
Component Replacement:
Detailed instructions for replacing major and minor components across all systems
Repair Procedures:
Instructions for repairing damaged or worn components
Rebuilds:
Overhaul procedures for engines and transmissions
Electrical Diagnostics:
Wiring diagrams, circuit testing, component testing, module programming
Suspension Alignment:
Adjustment procedures for suspension and steering geometry
Brake Service:
Brake pad and rotor replacement, brake caliper service, brake bleeding
HVAC Service:
A/C system recharging, leak detection, component replacement
Depth:
Comprehensive: Covers basic maintenance to complete engine and transmission rebuilds
Diagnostic Level:
Advanced: Includes detailed DTC interpretation and systematic troubleshooting trees
Wiring Diagrams:
Detailed and color-coded wiring diagrams for all systems
Torque Specifications:
Precise torque values for all fasteners
Special Tools:
Identification and usage of Mercedes-Benz specific tools
Transmission Type:
7-speed automatic (7G-TRONIC)
Drive Configuration:
Rear-wheel drive (RWD) standard, 4MATIC all-wheel drive (AWD) optional on many models
All Wheel Drive:
4MATIC AWD
Gear Modes:
Comfort (C), Sport (S), Manual (M)
Transmission Fluid Type:
MB Spec 236.14 (e.g., Mobil ATF 134, Pentosin ATF1)
NHTSA Rating:
Generally received top ratings in crash tests (specific year ratings may vary)
Electronic Stability Program:
Standard (ESP)
Anti Lock Braking System:
Standard (ABS)
Brake Assist System:
Standard (BAS)
Adaptive Cruise Control:
Optional (DISTRONIC PLUS)
Night Vision:
Optional (NIGHT VIEW ASSIST)
Airbags:
Front, side, curtain, knee airbags
Seatbelts:
Pre-tensioning and force-limiting seatbelts
Body Structure:
High-strength steel body structure
Infotainment System:
COMAND APS (Cockpit Management and Navigation)
Navigation:
Hard-drive based navigation system
Audio System:
Premium sound systems often featuring Harman Kardon or Bang & Olufsen
Adaptive Cruise Control:
DISTRONIC PLUS (maintains speed and distance to vehicle ahead)
Parking Assistance:
PARKTRONIC (audible and visual parking sensors), optional rearview camera
Lane Keeping Assist:
Optional (LANE KEEPING ASSIST / LANE TRACKING PACKAGE)
Blind Spot Monitoring:
Optional (BLIND SPOT ASSIST)
Bluetooth Interface:
Standard Bluetooth connectivity for hands-free calling and audio streaming
Usb Aux Ports:
Available USB and auxiliary input for media devices
Oil Change Interval:
Typically every 10,000 miles or 12 months, whichever comes first (refer to specific vehicle maintenance schedule)
Major Service A:
Around 30,000 miles or 36 months, includes synthetic oil and filter change, comprehensive inspection
Major Service B:
Around 60,000 miles or 72 months, includes Service A items plus cabin air filter, engine air filter replacement, brake inspection
Engine Oil Specification:
MB Spec 229.5 (e.g., Mobil 1 0W-40, Castrol Syntec 0W-40)
Coolant Type:
MB Spec 325.0 (Antifreeze/Coolant)
Brake Fluid Type:
DOT 4 Plus (MB Spec 331.0)
Common W221 Issues:
AIRMATIC suspension leaks (air springs, pumps), electronic module failures (SAM units), ignition coil failures, oil cooler seal leaks, transmission conductor plate issues
Airmatic Troubleshooting:
The manual provides detailed steps for diagnosing and repairing AIRMATIC suspension faults, including leak testing and component replacement.
Electrical Diagnostics Coverage:
Crucial for addressing intermittent electrical issues, control module malfunctions, and warning lights.
Heritage:
Mercedes-Benz has a long-standing reputation for luxury, engineering, and innovation in the automotive industry since its inception.
S Class Legacy:
The S-Class represents the pinnacle of Mercedes-Benz's luxury sedan offerings, consistently introducing groundbreaking technology and comfort features.
W221 Design Era:
The W221 generation, introduced for the 2006 model year, marked a significant shift with a more modern and sculpted exterior design compared to its predecessor (W220).
2010 Facelift:
The 2010 model year represents a mid-cycle refresh for the W221, featuring updated styling (e.g., LED daytime running lights, revised bumpers) and new technological features.
Production Locations:
Primary assembly in Sindelfingen, Germany.