🏷️ Basic Information

Make:

Mercedes-Benz

Model:

CLK350

Model Code:

C209 (for Coupe), A209 (for Cabriolet)

Year:

2009

Engine Code Primary:

M272 E35

👋 Introduction

Market Position:

The 2009 Mercedes-Benz CLK350 occupies the premium luxury coupe/convertible segment, competing with vehicles like the BMW 3 Series Coupe/Convertible, Audi A5, and Lexus SC. It targets discerning buyers seeking a blend of sporty performance, refined comfort, and advanced technology.

Competitive Analysis:

The CLK350 of this era emphasized a balance of performance from its V6 engine and the brand's renowned luxury and build quality. While competitors might have offered sharper handling or more avant-garde styling, the CLK350 stood out for its sophisticated ride, interior appointments, and the prestige associated with the Mercedes-Benz badge. This manual provides the necessary technical data to maintain this premium vehicle.

Key Features:

This service and repair manual software offers official, licensed data for the 2009 CLK350. Its digital format ensures quick access and easy searching of critical repair and maintenance information, providing technicians and owners with the resources to keep the vehicle in optimal condition.

📋 Manual Details

Coverage Areas:

Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, HVAC, Electrical System, Bodywork, Interior, Diagnostic Procedures, Troubleshooting, Maintenance Schedules, Specifications, Wiring Diagrams, Specifications

Page Count:

Extensive (Specific number not provided in product description, but typical for comprehensive software manuals)

Manual Type:

Service and Repair Manual Software

Language:

English

Format:

Software (Digital Download)

📖 Manual Coverage

Systems Covered:

Engine Mechanical, Engine Control (ECM), Fuel System, Ignition System, Cooling System, Lubrication System, Exhaust System, Automatic Transmission (722.6/7G-TRONIC), Drivetrain (Rear-Wheel Drive), Suspension (Front & Rear), Steering System, Brake System (ABS, ESP), Climate Control (A/C), Electrical System (12V Battery, Alternator, Starter, Lighting, Power Windows, Locks, Seats, SRS Airbags, Audio System, Navigation), Body Control Module (BCM), Gateway Module, Instrument Cluster, Bodywork (Exterior & Interior Trim), Diagnostic Trouble Codes (DTCs)

Procedures Included:

Scheduled Maintenance, Routine Inspections, Oil and Filter Changes, Spark Plug Replacement, Brake Pad and Rotor Replacement, Belt Replacement, Fluid Level Checks and Top-offs, Cooling System Service, Fuel Filter Replacement, Diagnostic Procedures for all systems, Troubleshooting Guides, Component Removal and Installation (e.g., Alternator, Starter, Water Pump, Radiator, AC Compressor, Suspension Components, Brake Calipers), Electrical Component Testing, SRS System Diagnosis, Body Panel Repair and Alignment, Interior Trim Removal and Reinstallation, Software Updates and Diagnostics

Technical Depth:

Comprehensive: Covers basic maintenance to in-depth repair and diagnostic procedures, including detailed troubleshooting flowcharts and wiring diagrams. Suitable for professional technicians and advanced DIY enthusiasts.

Wiring Diagrams:

Includes detailed electrical wiring diagrams for all major systems, aiding in troubleshooting and repair.

Diagnostics:

Provides diagnostic procedures, fault code tables, and troubleshooting flowcharts specific to the CLK350's electronic control units (ECUs).

Troubleshooting Methods:

Includes step-by-step troubleshooting procedures for common drivability, electrical, and mechanical faults, often cross-referenced with diagnostic trouble codes (DTCs).

Specifications Detail:

Comprehensive technical data, including torque specifications, clearances, fluid capacities, and diagnostic parameters for all major components and systems.

📊 Manual Specifications

File Format:

Digital Software (Likely executable or PDF accessible via a platform)

Print Quality:

N/A (Digital)

Binding Type:

N/A (Digital)

Paper Type:

N/A (Digital)

Searchability:

Software format typically allows for keyword searching, making it efficient for locating specific information.

Updates:

This is a static software manual for the 2009 model year. Ongoing updates are unlikely unless explicitly stated by the vendor.

⚙️ Engine Specifications

Primary Engine:

3.5L V6 DOHC 24-Valve

Horsepower:

268 hp @ 6000 rpm (approx.)

Torque:

258 lb-ft @ 3500 rpm (approx.)

Fuel System:

Electronic Fuel Injection (Sequential Multi-Port)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

Emission Controls:

California Emission Equipment, OBD-II compliant

Engine Management System:

ME 9.7 Engine Control Unit (ECU)

Timing System:

Dual Overhead Camshafts (DOHC) with Variable Valve Timing (VVT) - Camtronic

Cooling System Type:

Pressurized, liquid-cooled system with electric cooling fan.

Lubrication System Type:

Wet sump lubrication with variable displacement oil pump.

🔧 Transmission

Transmission Type:

7-Speed Automatic Transmission (7G-TRONIC)

Transmission Type:

N/A for CLK350 in 2009

Transmission Features:

TouchShift manual shifting capability, Comfort and Sport modes

Transmission Fluid Type:

Mercedes-Benz Automatic Transmission Fluid (ATF) 236.14 (MB Spec 001 989 68 03 10)

Gear Ratios:

Detailed gear ratios for forward gears and reverse are provided in the manual.

📐 Dimensions

Wheelbase:

106.7 inches

Overall Length:

182.0 inches

Overall Width:

70.2 inches

Overall Height:

54.5 inches

Curb Weight:

Approx. 3600-3800 lbs (Coupe/Convertible)

Gross Vehicle Weight Rating:

N/A (Typical for passenger cars, not explicitly stated as GVWR)

Cargo Volume Coupe:

Approx. 13.2 cubic feet

Cargo Volume Convertible:

Approx. 11.3 cubic feet (with top up)

Wheelbase:

106.7 inches

Wheel Bolt Pattern:

5x112

Standard Wheel Size:

17-inch (optional 18-inch available)

Standard Tire Size Front:

205/55R17

Standard Tire Size Rear:

225/45R17

🛡️ Safety Features

NHTSA Front Crash Rating:

5-Star (Driver & Passenger)

IIHS Top Safety Pick:

Yes (Likely, based on Mercedes-Benz safety standards of the era)

Active Features:

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

Passive Features:

Front and Side Airbags, Side Curtain Airbags (Coupe), Rollover Protection System (Convertible), Active Head Restraints (NECK-PRO), Pre-Safe® system (optional/standard depending on trim)

Seatbelts:

3-point inertia-reel seatbelts with pretensioners and belt-force limiters

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Navigation Display) with CD/DVD player, AM/FM radio, optional Harman Kardon surround sound, Bluetooth connectivity.

Infotainment Features:

Optional navigation system, media interface for external devices (e.g., iPod), voice control (Linguatronic).

Driver Assistance:

Optional features may include Parktronic (parking sensors), Bi-Xenon headlamps with Active Curve Illumination, Rain-sensing wipers, Cruise control.

Connectivity:

Bluetooth hands-free calling and audio streaming.

🔧 Maintenance

Service Interval Oil Change:

Flexible service interval (ASSYST PLUS system), typically around 10,000-13,000 miles or 12 months, whichever comes first.

Service Interval Transmission Fluid:

Recommended at 40,000-60,000 miles (refer to manual for exact specification and procedure)

Service Interval Spark Plugs:

Iridium spark plugs typically last 100,000 miles.

Engine Oil Specification:

MB 229.5 (SAE 0W-30 or 5W-40)

Engine Oil Capacity:

Approx. 6.9 US quarts (with filter change)

Coolant Type:

Mercedes-Benz approved Antifreeze/Coolant (e.g., MB Spec 325.0 or 326.0 - typically a blue/green silicate-free coolant)

Brake Fluid Type:

DOT 4 Plus (MB Spec 331.0)

Power Steering Fluid Type:

Hydraulic fluid MB Spec 343.0

Known Issues:

M272 engine balance shaft wear (pre-2007 models, less common on 2009), oil leaks from valve cover gaskets and oil cooler seals, transmission conductor plate issues (7G-TRONIC), potential issues with electronic components (SAM units, etc.), suspension component wear (bushings, ball joints).

Electrical Component Failure:

Specific modules like the rear SAM (Signal Acquisition and Actuation Module) or front SAM can experience water ingress and failure, affecting various vehicle functions.

Convertible Top Issues:

Hydraulic pump or cylinder leaks, fabric wear or damage, and electrical switch failures are potential issues for the convertible model.

📚 Vehicle History

Brand Heritage:

Mercedes-Benz has a long-standing reputation for engineering excellence, luxury, and safety, dating back to the invention of the automobile in 1886. This heritage translates into sophisticated design and robust construction in all its models, including the CLK.

Model Evolution:

The CLK-Class replaced the E-Class Coupe/Cabriolet (W124 chassis) and was positioned as a more stylish and sport-oriented alternative. The C209/A209 generation, introduced for the 2003 model year, received a significant facelift and powertrain updates for 2005, with the CLK350 becoming a popular choice, and continued through the 2009 model year before being replaced by the E-Class Coupe/Cabriolet (C207/A207).

Production Location:

Germany (Sindelfingen plant)

🏆 Awards & Recognition

Recognitions:

While specific awards for the 2009 CLK350 might not be widely documented, the CLK-Class line generally received positive reviews for its blend of luxury, performance, and safety from automotive publications during its production run.