🏷️ Basic Information Identification Make: Mercedes-Benz Model: CLK320 Year: 2003 Codes Chassis Code: W209 👋 Introduction Market Position Segment: Entry-level Luxury Coupe/Convertible Target Audience: Owners seeking to perform maintenance and repairs, Independent Mercedes-Benz Specialists Competitive Analysis Competitors: BMW 3 Series Coupe, Audi A4 Cabriolet, Lexus SC Series Key Features Vehicle Highlight: Elegant styling, comfortable ride, refined powertrain, strong safety features Manual Benefit: Provides authoritative and accurate repair information directly from the manufacturer 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Secondary Coverage: Maintenance, Troubleshooting, Diagnostics, Overhaul Page Count Estimated Pages: 1000+ Manual Type Type: Official Service and Repair Manual Software Language Language: English Format Format: Software (Likely CD-ROM or Digital Download) 📖 Manual Coverage Systems Covered Powertrain: Engine (M112 E32), Transmission (722.6 5-Speed Automatic), Drivetrain Chassis: Suspension (Front: MacPherson Strut, Rear: Multi-Link), Steering (Hydraulic Power Steering), Brakes (ABS, ESP) Electrical: ECU, Body Control Module (BCM), Lighting Systems, Audio System, HVAC Control, Instrument Cluster, SRS (Airbag) System Body: Exterior Body Panels, Interior Trim, Convertible Top Mechanism (if applicable) Procedures Included Maintenance: Scheduled Service Intervals, Oil Changes, Filter Replacements, Fluid Checks and Top-offs Troubleshooting: Diagnostic Trouble Codes (DTCs), Symptom-based Diagnostics, Electrical Schematics Interpretation Repair: Engine Component Rebuilds, Transmission Overhaul, Brake System Repairs, Suspension Component Replacement, Electrical Component Diagnosis and Replacement Technical Data: Torque Specifications, Wiring Diagrams, Component Locations, Exploded Views, Specifications Tables Technical Depth Depth: Comprehensive (from basic fluid changes to complete engine and transmission overhauls) 📊 Manual Specifications File Format Software Type: Proprietary Mercedes-Benz Diagnostic/Service Software (likely based on WIS - Workshop Information System) Print Quality Print Capability: Printable sections available within the software interface Binding Type Binding: N/A (Software) Paper Type Paper Type: N/A (Software) ⚙️ Engine Specifications Primary Engine Engine Code: M112 E32 Configuration: V6, SOHC (Single Overhead Camshaft), 18 Valves Displacement: 3.2 Liters (3199 cc) Bore X Stroke: 89.9 mm x 84.0 mm Performance Horsepower: 215 hp @ 5700 rpm Torque: 229 lb-ft @ 3000-4500 rpm Fuel System Fuel Type: Unleaded Gasoline (Premium Recommended) Injection: Sequential Multi-Point Fuel Injection (SFI) Emission Control: Three-Way Catalytic Converter, Secondary Air Injection (SAI) 🔧 Transmission Standard Transmission Type: 5-Speed Automatic (722.6 '7G-TRONIC' predecessor) Drive Layout: Rear-Wheel Drive (RWD) Features Transmission Modes: Comfort (C) and Sport (S) modes Fluid Type: MB Approved ATF (e.g., ATF 3403 or NAG2 LTS Fluid) Fluid Capacity: Approx. 7.5 Liters (for complete drain and fill, may vary) 📐 Dimensions Exterior Length: 178.9 inches (4544 mm) Width: 68.5 inches (1739 mm) Height: 54.6 inches (1387 mm) Wheelbase: 106.0 inches (2693 mm) Weights Curb Weight: Approximately 3600-3800 lbs (1633-1724 kg), varies by body style (Coupe/Cabriolet) 🛡️ Safety Features Ratings NHTSA Front Crash: 4/5 Stars IIHS Side Impact: Good Active Features Stability Control: Electronic Stability Program (ESP) Braking Assist: Anti-lock Braking System (ABS) Passive Features Airbags: Frontal Airbags, Side Airbags, Optional Head Curtain Airbags (Coupe) Seatbelts: Pretensioning Seatbelts with Force Limiters 💡 Technology Features Infotainment Audio System: Optional COMAND (Cockpit Management and Navigation Display) with CD Player, AM/FM Radio Navigation: Optional GPS Navigation System Driver Assistance Cruise Control: Standard Cruise Control, optional DISTRONIC (Adaptive Cruise Control) Connectivity Phone Integration: Optional Mercedes-Benz Hands-Free Communication System 🔧 Maintenance Service Intervals Oil Change Interval: Every 10,000 miles or 1 year, whichever comes first (using synthetic oil) Major Service Milestone: Approx. 30,000 miles (e.g., spark plugs, transmission service) Fluid Specifications Engine Oil: MB 229.5 Approved Synthetic 0W-40 or 5W-40 Coolant: MB Approved Antifreeze/Coolant (e.g., ZER xj4128) Brake Fluid: DOT 4 Plus Known Issues Common Problems Powertrain: Balance shaft wear on M112 engines, transmission conductor plate issues, early signs of the 'spirit of 97' issue (though less prevalent than older models) Common Problems Chassis: Front control arm bushings, rear axle bushings, potential for vacuum leaks Common Problems Electrical: MAF sensor issues, SAM unit (Signal Acquisition Module) failures, window regulator problems 📚 Vehicle History Brand Heritage Mercedes Benz Legacy: Pioneers in automotive safety, engineering, and luxury for over a century. Model Evolution Clk Class Origin: The W209 CLK-Class succeeded the W208 and was based on the W203 C-Class platform, offering coupe and convertible variants. Production Production Period: 2002-2009 (for W209 generation) Manufacturing Location: Germany 🏆 Awards & Recognition Recognitions Safety Award: Often received good ratings from IIHS and NHTSA for its safety features. Ratings Consumer Reports: Generally rated as average to above average in reliability for its class at the time, with specific model year variations.