🏷️ Basic Information

Make:

Mercedes-Benz

Model:

S-Class

Model Variant:

S450 4MATIC

Year:

2010

Market Segment:

Full-size Luxury Sedan

Chassis Code:

W221

Generation Designation:

Second Generation (Facelifted)

Engine Code:

M273.961 (for S450 designation)

👋 Introduction

Positioning:

The 2010 S-Class S450 4MATIC represented the pinnacle of Mercedes-Benz's luxury sedan offerings, competing in the ultra-luxury segment against rivals like the BMW 7 Series, Audi A8, and Lexus LS.

Key Competitors:

BMW 7 Series (F01/F02), Audi A8 (D3), Lexus LS (XF40), Porsche Panamera (970)

Luxury Appointments:

Premium leather upholstery, wood or metallic trim accents, advanced climate control, sophisticated infotainment, enhanced sound insulation.

Technology Integration:

COMAND infotainment system, advanced driver assistance systems (optional/standard), adaptive cruise control (DISTRONIC PLUS), active suspension (ABC - optional).

Performance Focus:

Comfort-oriented ride, smooth power delivery, refined handling characteristics, all-wheel drive for enhanced traction and stability.

📋 Manual Details

Coverage Scope:

Comprehensive owner's information for the 2010 Mercedes-Benz S450 4MATIC

Key Topics:

Introduction, Instrument Cluster, Entertainment Systems, Climate Controls, Lights, Driver Controls, Locks and Security, Seating and Safety Restraints, Driving, Customer Assistance, Reporting Safety Defects (U.S. only), Cleaning, Maintenance and Specifications, Engine Compartment, Engine Oil, Battery, Fuel Information, Air Filter(s), Part Numbers, Refill Capacities, Lubricant Specifications, Accessories

Estimated Pages:

Approximately 300-400 (typical for a comprehensive S-Class owner's manual)

Type:

Owner's Manual (Factory Original)

Language:

English

Format:

Digital PDF

Delivery Method:

Instant Download

📖 Manual Coverage

Powertrain:

Engine operation, lubrication, cooling, fuel system, ignition, exhaust

Chassis:

Suspension, steering, braking system, wheels, tires, 4MATIC all-wheel drive operation

Electrical:

Battery, lighting, instrumentation, infotainment, climate control, power accessories

Comfort And Convenience:

Power seats, door locks, windows, mirrors, trunk operation, keyless-go, interior lighting

Restraints:

Airbags (front, side, curtain), seat belts, ISOFIX child seat anchors

Driver Assistance:

ABS, ESP (Electronic Stability Program), Brake Assist, cruise control, parking assist (if equipped)

Operation:

Starting and stopping the engine, shifting gears, operating climate controls, using infotainment system, adjusting seats and mirrors

Maintenance:

Checking fluid levels (oil, coolant, washer fluid), tire pressure checks, basic cleaning, wiper blade replacement, bulb replacement

Troubleshooting:

Understanding dashboard warning indicators, basic troubleshooting for common issues

Depth:

Owner-level operational and basic maintenance guidance, not a detailed repair manual.

📊 Manual Specifications

Compatibility:

Requires PDF reader (e.g., Adobe Acrobat Reader, Foxit Reader) and compatible on any device (PC, tablet, smartphone)

Searchability:

Likely text-searchable due to PDF format, enabling quick information retrieval

Quality:

Digital reproduction of factory manual, quality dependent on source scan. Text and images should be clear.

Binding:

N/A (Digital PDF format)

Paper:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated V8

Engine Displacement:

4.6 Liters (4663 cc)

Engine Code:

M273.961

Bore X Stroke:

92.9 mm x 86.0 mm

Compression Ratio:

10.7:1

Horsepower:

335 hp @ 6000 rpm

Torque:

339 lb-ft @ 3500 rpm

Fuel Delivery:

Electronic Fuel Injection (Sequential Port Injection)

Recommended Fuel:

Premium Unleaded Gasoline (91 octane or higher)

Cylinder Layout:

V8

Valvetrain:

SOHC (Single Overhead Camshaft) with 4 valves per cylinder

🔧 Transmission

Transmission Type:

7G-TRONIC Automatic Transmission

Number Of Gears:

7-speed

Drive Type:

4MATIC All-Wheel Drive

Transmission Features:

Tiptronic manual shifting mode, adaptive shift programming

📐 Dimensions

Length:

200.0 inches

Width:

73.7 inches

Height:

58.5 inches

Wheelbase:

117.8 inches

Front Track:

63.5 inches

Rear Track:

63.0 inches

Curb Weight:

Approximately 4,365 - 4,450 lbs

Gross Vehicle Weight Rating:

Approximately 5,620 lbs

Trunk Volume:

16.4 cubic feet

🛡️ Safety Features

NHTSA Front Crash Rating:

5-Star (typically for S-Class of this era)

IIHS Top Safety Pick:

Likely a Top Safety Pick recipient (verify for specific year/testing)

Electronic Stability Control:

Standard (ESP)

Anti Lock Braking System:

Standard (ABS)

Brake Assist:

Standard (BAS)

All Season Traction:

Standard (4MATIC AWD)

Airbags:

Dual-stage front, front-side, rear-side, curtain airbags

Seat Belts:

Pretensioners and force limiters

Child Seat Anchors:

ISOFIX/LATCH system

💡 Technology Features

System Name:

COMAND APS (Cockpit Management and Navigation)

Features:

HDD-based navigation, AM/FM/Satellite radio, CD/DVD changer, Bluetooth connectivity, MP3 playback, voice control.

Audio System:

Harman Kardon LOGIC 7 surround sound system (optional, standard may vary)

Adaptive Cruise Control:

Optional DISTRONIC PLUS system

Parking Assistance:

PARKTRONIC parking assist system (audible and visual warnings)

Lane Keeping Assist:

Optional LANE KEEPING ASSIST

Blind Spot Monitoring:

Optional BLIND SPOT ASSIST

Night Vision:

Optional NIGHT VIEW ASSIST

Bluetooth Interface:

Standard for hands-free calling and audio streaming

Media Interface:

Optional Media Interface (MI) for connecting external media devices (e.g., iPod)

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 miles or 12 months, whichever comes first, depending on driving conditions (refer to manual for specific guidance).

Major Service Intervals:

Service A and Service B intervals, with complex checks and replacements (e.g., spark plugs, transmission fluid) occurring at higher mileages (e.g., 30,000-60,000 miles). Consult manual for specific A/B service indicators.

Engine Oil Specification:

MB 229.5 or MB 229.51 (typically 0W-40 or 5W-40 synthetic oil)

Coolant Specification:

MB 325.0 or MB 326.0 (Glycol-based coolant, typically blue)

Brake Fluid Specification:

DOT 4 Plus

Transmission Fluid Specification:

MB 236.14 (for 7G-TRONIC)

Power Steering Fluid:

MB 343.0 or Pentosin CHF 11 S (check specific vehicle for confirmation)

Common Wear Items:

Air suspension components (struts, pumps), ignition coils, fuel injectors, electronic modules (e.g., SAM units), oil leaks from valve covers or oil cooler seals.

Typical Maintenance Items:

Regular oil changes, filter replacements (oil, air, cabin), spark plug replacement, brake fluid flush, coolant flush, transmission fluid service.

Engine Oil Capacity:

Approximately 8.0 liters (8.5 US quarts)

Coolant Capacity:

Approximately 10.0 liters (10.6 US quarts)

Transmission Fluid Capacity:

Approximately 7.5 - 9.0 liters (7.9 - 9.5 US quarts) for a fluid change, significantly more for a torque converter refill.

Air Filter Primary:

A2730940404 (typical, verify specific VIN)

Cabin Filter Primary:

A2218300018 (typical, may have activated carbon variant)

📚 Vehicle History

Heritage:

Mercedes-Benz has a long-standing reputation for engineering luxury, performance, and safety, with the S-Class line being its flagship sedan for decades.

W221 Development:

The W221 S-Class, introduced for the 2006 model year, represented a significant design and technological leap. The 2010 model year marks a mid-cycle facelift, introducing updated styling, new technologies, and powertrain enhancements.

Manufacturing Location:

Mainly produced at the Mercedes-Benz plant in Sindelfingen, Germany.

🏆 Awards & Recognition

Luxury Awards:

The S-Class line consistently receives accolades for its luxury, comfort, and technological advancements from various automotive publications.

Consumer Satisfaction:

Generally ranks high in owner satisfaction surveys for luxury vehicles due to its comfort and feature set.