Segment:
Entry-level Luxury Coupe/Convertible
Key Competitors:
BMW 3 Series Coupe/Convertible, Audi A4 Cabriolet, Lexus SC, Infiniti G35 Coupe
Selling Points:
Elegant styling, comfortable interior, refined ride quality, powerful V6 engine, Mercedes-Benz engineering and brand prestige.
Primary Coverage:
Service and Repair
Secondary Coverage:
Maintenance, Diagnostics, Troubleshooting, Component Replacement, Electrical Systems, Bodywork
Estimated Pages:
Extensive (Software-based, searchable; typically equivalent to 1000+ printed pages)
Type:
Digital Service Manual Software
Format:
Software Application (likely searchable PDF or proprietary digital format)
Powertrain:
Engine (M272 V6), Transmission (7G-TRONIC 722.9), Drivetrain
Chassis:
Suspension (Front: MacPherson Strut; Rear: Multi-link), Steering, Brakes (Front: Ventilated Discs; Rear: Solid Discs), Wheels and Tires
Electrical:
Wiring Diagrams, Lighting Systems, Instrument Cluster, CAN Bus Communication, Body Control Modules (BCM), Engine Control Module (ECM), Transmission Control Module (TCM)
Body:
Exterior Body Panels, Doors, Hood, Trunk, Glass, Convertible Top Mechanism (if applicable), Interior Trim, Seats
Maintenance:
Scheduled Maintenance Intervals, Fluid Changes (Oil, Coolant, Brake Fluid, Transmission Fluid), Filter Replacements, Spark Plug Replacement, Belt Inspection/Replacement
Repair:
Engine Assembly/Disassembly, Transmission Overhaul, Brake System Repairs, Suspension Component Replacement, Steering System Repairs, Electrical Component Diagnosis and Replacement, Body Panel Repair/Replacement, Convertible Top System Repair
Diagnostics:
Troubleshooting Guides, Fault Code Interpretation (OBD-II), Diagnostic Procedures for all major systems, Sensor Testing
Depth:
Comprehensive: From basic fluid checks and filter replacements to full engine and transmission rebuilds, including detailed electrical system troubleshooting.
Transmission Code:
7G-TRONIC (722.9)
Modes:
Comfort (C) and Sport (S) modes
Fluid Type:
MB Approved ATF (e.g., Mobil ATF 134, Shell Spirax S6 ATF X, Fuchs Titan ATF 4134)
Fluid Capacity:
Approx. 9 Liters (for complete fill; check specific service procedures)
NHTSA Front Impact:
5-Star (Driver), 5-Star (Passenger)
ABS:
Standard Anti-lock Braking System (ABS)
Esp:
Standard Electronic Stability Program (ESP)
Traction Control:
Standard Traction Control System (ASR)
Airbags:
Front Airbags, Side Airbags, Front and Rear Side Curtain Airbags (standard)
Seat Belts:
3-point inertia-reel seat belts with pre-tensioners and force limiters
Rollover Protection:
Pop-up roll bars (for convertible models)
Audio System:
COMAND (Cockpit Management and Navigation) APS with optional 6-disc CD changer, AM/FM radio, optional Harman Kardon surround sound system.
Navigation:
Optional GPS Navigation system integrated into COMAND head unit.
Cruise Control:
Standard Cruise Control with SPEEDTRONIC variable speed limiter.
Bluetooth:
Optional MHI (Mobile Handset Interface) for Bluetooth connectivity.
Keyless Entry:
Standard Keyless-Go optional.
Headlights:
Standard Halogen projector headlamps; optional Bi-Xenon headlamps with Active Curve Illumination.
Oil Change Interval:
Flexible service system (ASSYST) indicates based on driving conditions, typically around 10,000-15,000 miles or 12 months.
Major Service Interval:
Refer to service booklet; typically includes spark plugs, transmission service, brake fluid flush at specific mileage intervals (e.g., 60,000 miles for spark plugs).
Engine Oil Type:
MB 229.5 or MB 229.51 Synthetic Engine Oil (e.g., 0W-40 or 5W-40)
Engine Oil Capacity:
8.5 US quarts (8.0 Liters)
Coolant Type:
MB Approved Antifreeze/Coolant (e.g., MB-Approved antifreeze concentrate, G48 specification)
Brake Fluid Type:
DOT 4 Plus (or specified MB fluid)
Common Problems:
Variable Valve Timing (VVT) actuator failure, oil leaks from valve cover gaskets, coolant leaks from thermostat housing, transmission soft shifting or errors (early 722.9 units), SAM module issues, catalytic converter failure.
Oil Filter:
Example: Mann-Filter HU718/5z, Mahle OX350/1DE, Hengst E1000H
Cabin Air Filter:
Example: Mann-Filter CU2936, Bosch 1987432037
Manufacturer History:
Mercedes-Benz, a German automotive manufacturer, has a legacy dating back to the late 19th century, renowned for luxury, engineering, and innovation.
Generation:
Second Generation CLK (C209) introduced in 2002, replacing the C208. The CLK350 (W209) replaced the CLK320 with the new M272 engine in 2005 for the 2006 model year.
Manufacturing Locations:
Mainly produced in Sindelfingen, Germany.
