This comprehensive 2003 Mercedes CLK-Class C209 & A209 Service and Repair Manual provides you with the exact same information used by technicians at dealerships to maintain, service, diagnose, and repair your vehicle. This manual is vehicle-specific, offering detailed instructions, diagrams, illustrations, wiring schematics, and specifications for all models and repairs. The manual covers a wide range of topics, including: * **Maintenance:** Routine maintenance procedures to keep your vehicle running smoothly. * **Engine:** In-depth information on engine components, operation, troubleshooting, and repair. * **Control System:** Detailed explanation of the electronic control systems for engine, transmission, and other components. * **Mechanical:** Step-by-step instructions for repairing and replacing mechanical components, including suspension, brakes, steering, and drivetrain. * **Fuel Service Specifications:** Technical details related to fuel systems, including injectors, pumps, and lines. * **Emission Control:** Comprehensive information on emission control systems, including catalytic converter, oxygen sensors, and exhaust systems. * **Intake Exhaust Cooling:** Detailed explanation of intake and exhaust systems, including cooling and related components. * **Lube:** Specifications and procedures for lubricating various parts of the vehicle. * **Ignition Starting Charging:** Instructions for servicing and repairing ignition, starting, and charging systems. * **Auto Transmission Clutch:** Detailed information on automatic transmission operation, troubleshooting, and repair. * **Manual Transmission:** Comprehensive information on manual transmission operation, troubleshooting, and repair. * **Transfer Propeller Shaft:** Instructions for servicing and repairing transfer case and propeller shaft. * **Drive Shaft:** Detailed explanation of drivetrain components, including drive shafts, axles, and differentials. * **Differential:** Comprehensive information on differentials, including operation, repair, and replacement. * **Axle Suspension:** Detailed information on axle and suspension components, including operation, repair, and replacement. * **Tire & Wheel:** Information on tires, wheels, and related components, including maintenance and repair. * **Brake Control:** Detailed explanation of brake systems, including operation, troubleshooting, and repair. * **Brake:** Detailed instructions for servicing and repairing brake systems, including calipers, rotors, and pads. * **Parking Brake:** Information on parking brake systems, including operation, troubleshooting, and repair. * **Steering Column:** Detailed explanation of steering column components, including operation, repair, and replacement. * **Power Steering:** Information on power steering systems, including operation, troubleshooting, and repair. * **Air Condition:** Comprehensive information on air conditioning systems, including operation, repair, and refrigerant handling. * **Suppl Restraint System:** Detailed explanation of supplemental restraint systems (airbags), including operation, diagnostics, and repair. * **Seat Belt:** Information on seat belt systems, including operation, troubleshooting, and repair. * **Engine Immobilizer:** Explanation of engine immobilizer systems, including operation and troubleshooting. * **Cruise Control:** Comprehensive information on cruise control systems, including operation, troubleshooting, and repair. * **Wiper & Washer:** Information on windshield wiper and washer systems, including operation, troubleshooting, and repair. * **Door Lock:** Detailed explanation of door lock systems, including operation, troubleshooting, and repair. * **Meter Audio/Visual:** Information on instrument cluster and audio/visual systems, including operation, troubleshooting, and repair. * **Horn:** Instructions for troubleshooting and repairing the horn system. * **Windshield/Glass Mirror:** Information on windshield, glass, and mirror components, including replacement and repair. * **Instrument Panel:** Detailed information on the instrument panel, including components, operation, and repair. * **Seat:** Information on seats, including operation, adjustment, and repair. * **Engine Hood/ Door:** Detailed explanation of engine hood and door components, including operation, troubleshooting, and repair. * **Exterior & Interior:** Information on exterior and interior components, including trim, body panels, and upholstery. * **Electrical:** Comprehensive information on electrical systems, including wiring diagrams, troubleshooting, and repair. * **Multiplex/ Can Communication:** Explanation of multiplex and CAN communication systems, including diagnostics and troubleshooting. With this manual, you can confidently tackle a wide array of repairs and maintenance tasks on your own, saving you time and money.

The 2003 Mercedes CLK-Class (C209 and A209) represents a significant evolution in the Mercedes-Benz coupe and convertible lineup. This second-generation CLK-Class boasts a sophisticated design language, featuring flowing lines, a long hood, and a classic coupe silhouette. The C209 denotes the coupe body style, while the A209 signifies the convertible variant. Both versions offer a luxurious and refined driving experience, appealing to those seeking a blend of performance and elegance. The CLK-Class offered a range of engine options, from the fuel-efficient CLK 200 with a 1.8-liter four-cylinder to the powerful CLK 55 AMG boasting a 5.4-liter V8. Inside, the 2003 CLK-Class provides a premium cabin with high-quality materials and meticulous craftsmanship. The interior boasts comfortable and supportive seats, a well-designed instrument panel, and an array of advanced features. While the CLK-Class's overall size might not be as imposing as its larger siblings, it still offers ample space for passengers and cargo. The model year 2003 saw the introduction of a number of improvements over the previous generation, including enhanced safety features, a refined suspension system, and improved aerodynamics. The 2003 CLK-Class cemented its position as a sophisticated and desirable model, attracting buyers who appreciated its combination of luxury, performance, and timeless styling. The 2003 Mercedes CLK-Class continues to hold a special place in the hearts of automotive enthusiasts, offering a unique blend of style and substance that has stood the test of time.