🏷️ Basic Information

Make:

Mercedes-Benz

Model:

C300

Model Code:

W204

Year:

2008

Chassis Code:

W204

Vin Code First Digit:

W

👋 Introduction

Market Position:

The 2008 Mercedes-Benz C300 (W204) represented a significant evolution in Mercedes-Benz's compact executive sedan segment, offering a blend of luxury, performance, and advanced technology. This manual targets owners and independent repair facilities seeking accurate and detailed information for maintaining and repairing this specific model.

Competitive Analysis:

Competed directly with vehicles such as the BMW 3 Series, Audi A4, Lexus IS, and Infiniti G35. The W204 C-Class was praised for its refined interior, improved driving dynamics compared to its predecessor, and a comprehensive safety suite.

Key Features:

Officially licensed software ensures accuracy and completeness. Provides detailed diagnostic procedures, repair instructions, and specifications crucial for maintaining Mercedes-Benz's high standards. Searchable interface allows for quick access to specific information.

📋 Manual Details

Coverage Areas:

Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, HVAC, Electrical System, Body & Chassis, Interior, Exterior, Diagnostics, Troubleshooting, Maintenance Schedules, Specifications, Wiring Diagrams

Page Count:

Est. 2000+ pages (typical for comprehensive software)

Manual Type:

Official Service & Repair Manual Software

Language:

English

Format:

Software (digital download/disc)

📖 Manual Coverage

Systems Covered:

Engine mechanical, Engine management (ECU), Fuel system, Ignition system, Exhaust system, Cooling system, Lubrication system, Starting and charging system, Automatic transmission, Manual transmission (if applicable), All-wheel drive (4MATIC), Driveline components, Front suspension, Rear suspension, Steering system, Brake system (ABS, ESP), Climate control (HVAC), Power windows, Power locks, Power seats, Lighting system, Dashboard and instruments, Audio system, Navigation system, SRS (Airbag) system, Body control modules, Exterior body panels, Interior trim, Wiper and washer systems

Procedures Included:

Routine maintenance (oil changes, filter replacements, fluid checks/changes), Engine tune-up procedures, Component removal and installation (engine, transmission, suspension parts, brakes, etc.), Electrical troubleshooting and diagnosis, HVAC system servicing, Bodywork repair and adjustment, Interior component repair, Diagnostic trouble code (DTC) interpretation and resolution, Wiring diagram analysis, Resetting service indicators, Torque specifications, General repair procedures, Overhaul instructions

Technical Depth:

Comprehensive: Covers everything from basic scheduled maintenance and routine repairs to in-depth diagnostics, system overhauls, and complete rebuild procedures. Includes detailed technical specifications, tolerances, and diagnostic flowcharts.

Electrical Systems Coverage:

Detailed wiring diagrams for all major systems, including engine control, transmission control, body electronics, lighting, comfort systems, and safety systems. Troubleshooting guides for electrical faults.

Diagnostic Tools Coverage:

Procedures for using diagnostic scan tools like Mercedes-Benz STAR Diagnosis (XENTRY/DAS) are detailed, including reading live data, actuator tests, and coding.

📊 Manual Specifications

File Format:

Proprietary software executable, potentially PDF documents within the software.

Print Quality:

N/A (Digital Software)

Binding Type:

N/A (Digital Software)

Paper Type:

N/A (Digital Software)

Searchability:

High - Software typically offers advanced search functionality by keyword, component, or system.

Accessibility:

Instant download or disc delivery, accessible on compatible computer systems.

⚙️ Engine Specifications

Engine Type:

3.0L DOHC 24-Valve V6

Engine Code:

M272.947

Displacement:

2996 cc (182.8 cu in)

Horsepower:

228 hp @ 6000 rpm

Torque:

221 lb-ft @ 2500-5000 rpm

Fuel Delivery:

Sequential Electronic Fuel Injection (Bosch ME 9.7) with Electronic Throttle Control (ETC)

Recommended Fuel:

Premium Unleaded Gasoline (91 octane or higher)

ECU Model:

Bosch ME 9.7

Emission Control:

Electronic ignition, secondary air injection (if applicable), catalytic converter, OBD-II diagnostics.

🔧 Transmission

Transmission Type:

7-speed Automatic (7G-TRONIC)

Transmission Code:

722.9

Optional Transmission:

6-speed Manual (less common in North America)

Transmission Modes:

Comfort (C) and Sport (S)

Transmission Fluid Type:

MB Specification 236.14 (e.g., Mobil ATF 134, Pentosin ATF 41)

Drivetrain Options:

Rear-wheel drive (RWD) standard, 4MATIC all-wheel drive (AWD) optional.

📐 Dimensions

Length:

180.0 inches (4573 mm)

Width:

69.7 inches (1770 mm)

Height:

56.3 inches (1430 mm)

Wheelbase:

108.7 inches (2760 mm)

Curb Weight:

Approx. 3572 lbs (1620 kg)

Gross Vehicle Weight Rating:

Approx. 4652 lbs (2110 kg)

Trunk Capacity:

13.0 cu ft (368 L)

Standard Wheel Size:

17-inch alloy

Standard Tire Size:

225/45R17

Bolt Pattern:

5x112

🛡️ Safety Features

NHTSA Front Impact:

5-star

NHTSA Side Impact:

5-star

IIHS Top Safety Pick:

Yes

Active Safety Features:

Anti-lock Braking System (ABS), Electronic Stability Program (ESP), Traction Control System (TCS), Brake Assist (BAS), Tire Pressure Monitoring System (TPMS)

Passive Safety Features:

Driver and front passenger front airbags, Side airbags, Curtain airbags (front and rear), Active front head restraints, Pretensioner seatbelts with load limiters

💡 Technology Features

Infotainment System:

COMAND APS (optional), Audio 20 with CD player and Bluetooth connectivity.

Navigation:

Optional factory navigation system (integrated into COMAND or separate unit).

Driver Assistance Features:

Optional: Parktronic parking assist, Adaptive cruise control (Distronic Plus - less common on C300), Lane Keeping Assist, Blind Spot Assist.

Connectivity Options:

Bluetooth interface for hands-free calling and audio streaming.

🔧 Maintenance

Major Service Interval Benz Service A:

Approximately 10,000 miles or 1 year, whichever comes first. Includes oil and filter change, tire rotation, inspection of key components.

Major Service Interval Benz Service B:

Approximately 20,000 miles or 2 years, whichever comes first. Includes Service A items plus cabin air filter replacement, brake fluid change (as needed), and more extensive inspections.

Engine Oil Type:

MB 229.5 (e.g., Mobil 1 0W-40 Synthetic, Castrol Syntec 0W-40)

Engine Oil Capacity:

Approx. 6.9 quarts (6.5 liters) with filter change

Coolant Type:

MB Specification 325.0 (Blue color) or 326.0 (Green color) - typically a 50/50 mix with distilled water

Brake Fluid Type:

DOT 4 Plus (MB Specification 331.0)

Power Steering Fluid Type:

MB Specification 236.3 (often Dexron III or equivalent)

Differential Fluid Type Rwd:

MB Specification 235.7 (Synthetic) or SAE 75W-85 API GL-5

Transfer Case Fluid Type 4Matic:

MB Specification 236.7 or 236.8 (ATF compatible)

Known Issues M272 Engine:

Timing chain tensioner wear (can lead to timing issues and engine damage), Balance shaft gear wear (on earlier M272 engines, less common in later revisions like the 2008 C300), Camshaft solenoids (related to variable valve timing).

Known Issues Transmission:

Conductor plate issues in the 7G-TRONIC transmission (can cause shifting problems), Mechatronic unit failure.

Known Issues Suspension:

Front lower control arm bushings, ball joints wear.

📚 Vehicle History

Brand Heritage:

Mercedes-Benz, founded in 1926, is renowned for its luxury vehicles, pioneering engineering, and commitment to safety and quality. The brand has a long history of innovation in automotive technology and design.

Model Evolution W204:

The W204 generation, introduced for the 2008 model year, marked a significant departure in styling with a more aggressive and sportier design. It featured updated powertrains, a more refined chassis, and advanced technology previously reserved for larger Mercedes-Benz models.

Production Years:

2007-2014 (W204 generation)

Manufacturing Locations:

Germany (Sindelfingen, Bremen), South Africa, China, India, Egypt, Hungary

🏆 Awards & Recognition

Recognitions:

The W204 C-Class, including the 2008 model, was generally well-received and often cited for its balanced ride and handling, refined interior, and safety features. It frequently appeared on 'best of' lists and received positive reviews from automotive journalists upon its release.