Vehicle Segment:
Compact Luxury Coupe/Convertible
Target Audience:
Individuals seeking a stylish, performance-oriented, and luxurious German grand tourer.
Key Competitors:
BMW 3 Series Coupe/Convertible (E46/E92), Audi A4 Cabriolet, Lexus SC, Porsche Boxster.
Design Philosophy:
Sporty yet elegant styling, comfortable grand touring capabilities, and Mercedes-Benz's signature build quality and engineering.
Manual Value Proposition:
Empowers owners to perform maintenance and repairs, saving significant costs and enhancing understanding of their vehicle.
Engine:
Detailed diagnostics, repair procedures, specifications, troubleshooting for various engine variants (e.g., M111, M271, M112, M272, M113, M273).
Transmission:
Service, repair, and diagnostic procedures for automatic transmissions (e.g., 722.6 5-speed, 722.9 7-speed). Includes fluid types, capacity, and torque converter service.
Traction Control:
Detailed information on ESP (Electronic Stability Program) and ASR (Acceleration Slip Regulation) systems, including sensor diagnostics, component testing, and calibration procedures.
Climate Control:
Service and troubleshooting for the automatic climate control (THERMATIC/THERMOTRONIC) system, including HVAC unit, sensors, actuators, refrigerant handling, and compressor diagnostics.
Electrical:
Comprehensive electrical schematics, wiring diagrams, component testing, diagnostic procedures, and repair instructions for all vehicle electrical systems, including lighting, power accessories, instrument cluster, body control modules (BCM), and gateway modules.
Chassis:
Detailed information on suspension systems (front and rear), steering components, braking systems (ABS, SBC), wheel bearings, and chassis alignment specifications.
Body:
Bodywork repair procedures, panel removal/installation, door mechanisms, convertible top (if applicable to specific sub-models), glass replacement, and interior trim service.
Maintenance:
Scheduled maintenance tasks, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, spark plug service, and general inspection routines.
Diagnostics:
Step-by-step diagnostic procedures for identifying and resolving common and complex faults using OBD-II codes and specialized diagnostic tools.
Repair:
Detailed instructions for component removal, replacement, and repair for all major vehicle systems, including engine components, transmission overhaul, brake caliper replacement, and electrical module repair.
Special Tools:
Identification and usage instructions for Mercedes-Benz specific special tools required for certain repair and maintenance procedures.
Depth Of Information:
Comprehensive technical data covering from basic routine maintenance to advanced troubleshooting and complete system overhauls. Suitable for DIY enthusiasts and professional mechanics.
Engine Codes Covered:
Includes M111 (2.0L Supercharged), M271 (1.8L/2.3L Turbocharged), M112 (3.2L/3.7L V6), M272 (3.0L/3.5L V6), M113 (4.3L/5.0L/5.4L V8), M273 (5.5L V8).
Horsepower Range:
Approximately 163 hp (C200 Kompressor) to 362 hp (CLK55 AMG).
Torque Range:
Approximately 230 Nm (C200 Kompressor) to 510 Nm (CLK55 AMG).
Fuel Injection Type:
Sequential Multi-Point Fuel Injection (MPI) or Direct Injection (DI) on later models, managed by ME (Motor Electronics) control units.
Fuel Grade Recommendation:
Premium Unleaded (91 AKI or higher) typically recommended for most variants.
Spark Plug Replacement Interval:
Varies by engine, typically 60,000 to 100,000 miles (e.g., Iridium spark plugs).
Transmission Options:
Primarily automatic transmissions: 5-speed 722.6 NAG1, 7-speed 722.9 7G-TRONIC. Manual transmissions were rare or not offered in many markets for this generation.
All Wheel Drive:
Generally rear-wheel drive; 4MATIC all-wheel drive was not commonly offered on the C209 CLK-Class.
Transmission Fluid Type:
MB spec 236.10 or 236.12 for 722.6; MB spec 236.14 for 722.9.
Transmission Fluid Capacity:
Approximately 7-9 liters for a dry fill, 3-4 liters for a pan drop and fill.
Length:
Approx. 4633 mm (182.4 in)
Width:
Approx. 1741 mm (68.5 in)
Height:
Approx. 1381 mm (54.4 in) (Coupe), 1375 mm (54.1 in) (Cabriolet)
Wheelbase:
Approx. 2715 mm (106.9 in)
Trunk Volume:
Approx. 432 liters (Coupe), 330 liters (Cabriolet)
Curb Weight:
Approx. 1500-1700 kg depending on engine and options.
NHTSA Ratings:
Generally achieved good ratings in its class; specific ratings vary by model year and testing procedures.
Esp:
Standard on all models (Electronic Stability Program).
ABS:
Standard Anti-lock Braking System.
Asr:
Standard Acceleration Slip Regulation.
Airbags:
Front, side, and often window airbags. Some models may have optional rear side airbags.
Seatbelts:
Pretensioners and force limiters for front seats.
Audio System:
Optional COMAND APS (Cockpit Management and Navigation) system, offering navigation, radio, CD player, and optional SiriusXM satellite radio. Base systems included audio and CD player.
Connectivity:
Early Bluetooth telephony integration, optional Tele Aid emergency call system.
Cruise Control:
Standard cruise control; optional DISTRONIC adaptive cruise control on some higher-spec models.
Parking Assist:
Optional PARKTRONIC parking assist system.
Oil Change Interval:
Typically every 10,000 miles or 12 months, whichever comes first, often indicated by the 'Service A' or 'Service B' indicator on the dashboard.
Brake Fluid Flush Interval:
Every 2 years, regardless of mileage.
Coolant Flush Interval:
Initial change at 150,000 miles (240,000 km), then every 75,000 miles (120,000 km) or 5 years thereafter, depending on coolant type.
Engine Oil Specification:
MB 229.5 or MB 229.51 (Synthetic Oil), viscosity typically 0W-40 or 5W-40 depending on ambient temperature and engine variant.
Coolant Specification:
MB spec 325.0 (Glysantin G05 or equivalent) - Blue/Green coolant.
Common Problems:
Oil leaks (valve cover gaskets, oil cooler seals), ignition coil failure, mass airflow sensor issues, catalytic converter degradation, ABS/ESP sensor faults, window regulator failures, electronic throttle body problems, and potential transmission conductor plate issues on 722.6 transmissions.
Typical Repair Cost Savings:
Significant savings on diagnostics, filter changes, fluid services, brake pad/rotor replacement, and minor electrical component repairs.
Brand Legacy:
Mercedes-Benz, a marque synonymous with luxury, engineering excellence, and pioneering automotive technology since the late 19th century.
Predecessor:
CLK-Class (W208).
Successor:
E-Class Coupe/Cabriolet (A207/C207).
Platform Sharing:
Based on the W203 C-Class platform, but with significant styling and engineering differences, particularly in suspension and drivetrain.
Manufacturing Locations:
Primary manufacturing in Germany (Sindelfingen) and South Africa.
Ward S 10 Best Engines:
Various Mercedes-Benz engines used in the CLK-Class, particularly the V6 and V8 variants, have received recognition in the past for their refinement and performance.
Consumer Reports Ratings:
Variable ratings depending on model year and specific powertrain, with common themes around reliability in certain areas and satisfaction in others.
Manufacturer Certifications:
The manual itself is a comprehensive technical document provided by or compiled based on manufacturer data.
