🏷️ Basic Information

Make:

Mercedes-Benz

Model:

C-Class

Model Variant:

C300

Model Year:

2009

Chassis Code:

W204

Engine Code:

M272 (3.0L V6)

👋 Introduction

Segment:

Compact Executive Sedan/Coupe

Competitors:

BMW 3 Series, Audi A4, Lexus IS, Infiniti G37, Acura TL

Vehicle Highlights:

Premium interior, refined ride, strong brand prestige, advanced safety features for its class, capable V6 engine.

📋 Manual Details

Primary Areas:

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:

300-400 (typical for this model/year)

Type:

Owner's Manual

Language:

English

Format:

Digital PDF

📖 Manual Coverage

Automotive Systems:

Engine operation and care, instrument cluster indicators and warnings, infotainment system (audio, navigation, MBUX interface if applicable for this year), climate control functions, lighting operations, driver controls (steering wheel, pedals, shifter), central locking and security systems (keyless entry, alarm), seating adjustments, airbag system, seatbelt usage, basic driving techniques, emergency procedures, customer service contacts, cleaning guidelines, routine maintenance procedures, engine bay components identification, oil type and capacity, battery maintenance, fuel requirements, air filter identification, part number references for common maintenance items, fluid refill capacities, lubricant specifications for various components, accessory installation guidelines

Operational Procedures:

Starting and stopping the engine, using the transmission, operating climate control, adjusting mirrors and seats, using exterior and interior lighting, understanding warning lights, operating the audio system, basic navigation usage, setting up Bluetooth, locking/unlocking doors, using cruise control, checking fluid levels, refilling fluids (oil, washer fluid), jump-starting the vehicle, changing a flat tire, basic cleaning and care

Depth Of Information:

Comprehensive for owner-level operation and basic maintenance. Covers identification of components, understanding functions, and performing routine checks and fluid top-ups. Does not include in-depth diagnostic procedures, component replacement instructions, or detailed repair procedures typical of a factory service manual.

📊 Manual Specifications

Digital Format:

PDF (Portable Document Format)

Clarity:

High-resolution, factory-sourced digital reproduction, ensuring clarity of text and diagrams.

Binding:

Not Applicable (Digital Download)

Paper:

Not Applicable (Digital Download)

⚙️ Engine Specifications

Engine Type:

3.0L V6 DOHC 24-valve

Engine Designation:

Mercedes-Benz M272 E30

Horsepower:

228 hp @ 6000 rpm

Torque:

221 lb-ft @ 2500-5000 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI)

Recommended Fuel:

Premium Unleaded (91 octane or higher)

Engine Oil Capacity:

8.5 US quarts (8.0 liters) with filter change

Engine Oil Specification:

MB 229.5 or MB 229.51 (e.g., Mobil 1 Synthetic 0W-40)

Air Filter Part Number:

A2720940204 (example, may vary slightly by production date)

🔧 Transmission

Transmission Type:

7-speed automatic (7G-TRONIC)

Transmission Options:

Not applicable for C300 in 2009 model year (standard)

Transmission Features:

Driver-adaptive, manual shifting mode (Tiptronic style), Comfort and Sport modes

Transmission Fluid Specification:

MB 236.14 (e.g., ATF LT 71141)

📐 Dimensions

Wheelbase:

108.7 inches (2760 mm)

Overall Length:

180.9 inches (4596 mm)

Overall Width:

69.7 inches (1770 mm)

Overall Height:

56.4 inches (1433 mm)

Curb Weight:

Approximately 3516 lbs (1595 kg)

Gross Vehicle Weight Rating:

Approximately 4652 lbs (2110 kg)

Towing Capacity:

Not specified/recommended for this model

Trunk Capacity:

12.4 cubic feet (350 liters)

🛡️ Safety Features

NHTSA Front Crash Test Rating:

5 Stars

IIHS Top Safety Pick:

Yes

Active Safety Systems:

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

Passive Safety Features:

Dual-stage front airbags, front side-impact airbags, curtain-side airbags (front and rear), active front head restraints, front and rear crumple zones, 3-point seat belts with pretensioners and load limiters

Child Seat Anchors:

LATCH (Lower Anchors and Tethers for Children) system

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Navigation) or Audio 20 (depending on options)

Display Type:

Color LCD screen (7-inch common)

Audio Features:

AM/FM radio, CD player (single or multi-disc), MP3 playback, auxiliary input, optional Harman Kardon surround sound system

Driver Assistance Features:

Optional features could include DISTRONIC (adaptive cruise control), PARKTRONIC (parking sensors), Lane Keeping Assist, Blind Spot Assist. Standard features include cruise control.

Connectivity Options:

Bluetooth hands-free calling, optional media interface for iPod/USB connectivity.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 miles or 12 months, whichever comes first, based on the flexible service system (ASSYST PLUS).

Major Service Intervals:

Refer to 'Service A' and 'Service B' indicators, which occur every 10,000 miles or 12 months and typically involve checks and replacements of spark plugs, cabin filters, and brake fluid at specific mileage/time intervals.

Coolant Type:

Mercedes-Benz Approved Antifreeze/Coolant (e.g., G05, a silicate-stabilized HOAT coolant) - typically a blue-green color.

Brake Fluid Type:

DOT 4 Plus (MB 331.0)

Power Steering Fluid Type:

Hydraulic fluid as per MB specification 343.0 (check manual for exact type, often a specialized fluid).

Common Problems:

M272 engine's balance shaft sprocket wear (leading to check engine light and rough idle), oil cooler seal leaks, HVAC blower motor resistor failure, vapor canister purge valve issues, transmission conductor plate issues (less common on earlier models).

Oil Filter Part Number:

A2721800009 (example, verify for exact vehicle)

Cabin Air Filter Part Number:

A2048300318 (example, may include active charcoal)

Battery Type:

AGM (Absorbent Glass Mat) battery

Battery Group Size:

Group 48 (H6)

Battery Voltage:

12V

📚 Vehicle History

Brand Legacy:

Mercedes-Benz has a long-standing reputation for luxury, engineering excellence, and safety, dating back to the invention of the automobile.

C Class Heritage:

The C-Class, introduced in 1993, replaced the 190 (W201) and has consistently been Mercedes-Benz's entry-level luxury sedan, evolving in size, technology, and design with each generation.

W204 Generation Period:

2007-2014

Manufacturing Locations:

Various plants globally, including Germany, South Africa, and China.

🏆 Awards & Recognition

IIHS Award:

Top Safety Pick 2009

Edmunds Rating:

Generally positive reviews for ride quality, interior, and engine performance, with criticisms often directed at the COMAND interface usability and some engine issues.