🏷️ Basic Information

Make:

Mercedes-Benz

Model:

CLK550

Year:

2007

Chassis Code:

A209 (Convertible), C209 (Coupe)

Engine Code:

M273.964

👋 Introduction

Positioning:

The 2007 CLK550 represented Mercedes-Benz's offering in the luxury grand tourer segment, blending performance with refined comfort and sophisticated styling. It competed with vehicles like the BMW 6 Series, Lexus SC 430, and Audi A5.

Comparison:

The CLK550 distinguished itself with its powerful V8 engine and a focus on comfortable, long-distance cruising, while offering a sportier driving experience than some competitors. Its chassis was derived from the E-Class, providing a balance of ride quality and handling.

Features:

Powerful M273 V8 engine, 7G-TRONIC automatic transmission, available as a coupe or convertible, luxurious interior appointments, advanced safety features for its time.

📋 Manual Details

Coverage:

Complete Service, Repair, Diagnostics, Maintenance, Electrical Schematics, Bodywork, Technical Data

Page Count:

Estimated 2000+ pages (Software)

Manual Type:

Official Factory Service Manual (Software)

Language:

English

Format:

Software (likely PDF or proprietary executable)

📖 Manual Coverage

Engine:

M273 V8, Engine Mechanical, Engine Management, Fuel System, Ignition System, Cooling System, Lubrication System, Exhaust System

Transmission:

722.9 (7G-TRONIC) Automatic Transmission: Operation, Diagnostics, Repair, Fluid Specifications

Drivetrain:

Front Axle, Rear Axle, Driveshafts, Differential

Suspension:

Front & Rear Suspension, Steering System, Wheel Alignment Specifications

Brakes:

Front & Rear Brakes (Discs), ABS, ESP, Brake System Diagnostics, Hydraulic Components, Parking Brake

Electrical:

Complete Electrical System, Wiring Diagrams, Fuse & Relay Locations, ECUs, Sensors, Lighting, Power Accessories

Bodywork:

Body Panels, Doors, Hood, Trunk, Bumpers, Convertible Top Mechanism (A209), Interior Trim

Climate Control:

Automatic Climate Control System, A/C Service, Heater Core, Ventilation

Safety Systems:

Airbag System (SRS), Seatbelts, Child Restraint Systems

Maintenance:

Oil Change, Filter Replacement, Spark Plug Replacement, Belt Inspection/Replacement, Fluid Checks and Replenishment

Diagnostics:

Troubleshooting Guides, Symptom-Based Diagnostics, OBD-II Fault Code Interpretation, Component Testing

Repair:

Engine Rebuild Procedures, Transmission Overhaul, Suspension Component Replacement, Brake Service, Electrical Component Repair, Body Panel Replacement

Adjustment:

Door Alignment, Hood/Trunk Latch Adjustment, Convertible Top Adjustments

Installation:

Component Installation Procedures, Accessory Installation Guidelines

Depth:

Comprehensive: Covers basic maintenance to complete engine and transmission overhauls, including detailed electrical diagnostics and bodywork repair.

📊 Manual Specifications

File Format:

Digital Software (likely searchable and hyperlinked)

Print Quality:

N/A (Software - digital rendering)

Binding Type:

N/A (Software - digital)

Paper Type:

N/A (Software - digital)

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated V8

Displacement:

5.5 Liters (5461 cc)

Bore X Stroke:

98.0 mm x 90.5 mm

Compression Ratio:

10.7:1

Valve Train:

DOHC, 4 valves per cylinder

Engine Code:

M273.964

Horsepower:

382 hp @ 6000 rpm

Torque:

391 lb-ft @ 2800-4800 rpm

Fuel Delivery:

Sequential Multi-Point Fuel Injection (MPI)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

ECU Type:

ME 2.8 (Bosch)

Oil Capacity:

8.5 Liters (8.9 US Quarts)

Recommended Oil Spec:

MB 229.5 Specification, SAE 0W-40 or 5W-40 Synthetic

🔧 Transmission

Transmission Type:

7-Speed Automatic (7G-TRONIC)

Transmission Code:

722.9

Gear Ratios:

1st: 4.377, 2nd: 2.859, 3rd: 1.923, 4th: 1.379, 5th: 1.000, 6th: 0.821, 7th: 0.728, Reverse: 3.417

Fluid Type:

MB 236.14 Specification Automatic Transmission Fluid (ATF)

Fluid Capacity:

Approx. 9.0 Liters (Dry Fill), 7.5 Liters (Pan Drop/Fill)

📐 Dimensions

Coupe Length:

4716 mm (185.7 in)

Coupe Width:

1741 mm (68.5 in)

Coupe Height:

1391 mm (54.8 in)

Convertible Length:

4716 mm (185.7 in)

Convertible Width:

1741 mm (68.5 in)

Convertible Height:

1395 mm (54.9 in)

Wheelbase:

2715 mm (106.9 in)

Coupe Curb Weight:

Approx. 1700 kg (3748 lbs)

Convertible Curb Weight:

Approx. 1830 kg (4034 lbs)

Gross Vehicle Weight Rating:

Approx. 2200 kg (Coupe) / 2300 kg (Convertible)

Coupe Trunk Volume:

455 Liters (16.1 cu ft)

Convertible Trunk Volume:

300 Liters (10.6 cu ft) with top up

Standard Wheel Size:

18-inch alloy

Standard Tire Size:

Front: 225/40R18, Rear: 255/35R18

Bolt Pattern:

5x112 mm

🛡️ Safety Features

NHTSA Front Crash Rating:

4 Stars (Driver), 5 Stars (Passenger)

IIHS Front Crash Rating:

Good

ABS:

Standard Anti-lock Braking System (ABS)

Esp:

Standard Electronic Stability Program (ESP)

Traction Control:

Standard Traction Control System (ASR)

Airbags:

Front Dual-Stage Airbags, Front Side Airbags, Front and Rear Side Curtain Airbags (Coupe), Front Knee Airbags

Seatbelts:

Pretensioning and Force-Limiting Seatbelts, Active Head Restraints (Front)

Convertible Safety:

Pop-up Roll Bars (A209)

💡 Technology Features

Infotainment System:

COMAND APS (Cockpit Management and Navigation System) with integrated CD player, radio, navigation, and optional telematics.

Audio System:

Optional Harman Kardon surround sound system

Cruise Control:

Standard Cruise Control with Speedtronic variable speed limiter

Parking Assist:

Optional Parktronic parking sensors (front and rear)

Bluetooth:

Optional Bluetooth connectivity for hands-free calling

Headlights:

Standard Bi-Xenon headlights with adaptive lighting, optional LED daytime running lights

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 miles or 12 months, whichever comes first (check manual for specific details based on driving conditions and oil used).

Major Service Interval:

Spark plugs (approx. 100,000 miles), transmission fluid and filter service (consult manual, often around 40,000-80,000 miles or as indicated by the vehicle's ASSYST system).

Coolant Type:

Mercedes-Benz Approved Antifreeze/Coolant (e.g., MB 325.0 or MB 326.0), typically a G-05 based coolant, mixed 50/50 with distilled water.

Brake Fluid Type:

DOT 4 Plus (MB Spec 331.0)

Power Steering Fluid:

MB 343.0 or MB 344.0 Specification Hydraulic Fluid

Common Problems:

Oil leaks from valve cover gaskets and oil cooler seals, early failure of balance shaft gear in M272/M273 engines (less common in M273 but possible), transmission conductor plate issues in 7G-TRONIC, active suspension component wear (if equipped), COMAND infotainment system glitches, convertible top hydraulic leaks or motor issues.

Spark Plug Type:

NGK Iridium (e.g., IFR6LDA or similar, refer to manual for exact part number)

📚 Vehicle History

Heritage:

Mercedes-Benz boasts over a century of automotive innovation, renowned for engineering excellence, luxury, and safety. The CLK lineage itself evolved from earlier coupe and cabriolet models, representing a blend of the C-Class and E-Class platforms.

Generation:

The 2007 CLK550 belongs to the second generation of the CLK-Class (C209/A209), which debuted in 2002 and received a facelift in 2005. This generation moved towards a more distinct styling and improved mechanicals compared to its predecessor.

Production Years:

2003-2010 (for the C209/A209 generation)

Manufacturing Location:

Bremen, Germany

🏆 Awards & Recognition

Segment Awards:

While specific awards for the 2007 CLK550 are less documented, the CLK-Class in general was recognized for its blend of luxury, performance, and sophisticated design, often appearing on 'best of' lists for its segment during its production run.