Lists and specifications for any specialized tools required for specific repair procedures.
⚙️ Engine Specifications
Primary Engine
Engine Type:
Naturally Aspirated V8
Engine Displacement:
5.4 Liters (5439 cc)
Bore X Stroke:
97.0 mm x 92.0 mm
Compression Ratio:
9.5:1
Valve Train:
SOHC, 3 valves per cylinder (2 intake, 1 exhaust) with hemispherical combustion chambers (the M113 is technically SOHC, not DOHC as commonly assumed for performance engines, but features advanced valve control).
Performance
Horsepower:
360 hp @ 6500 rpm
Torque:
391 lb-ft (530 Nm) @ 3750 rpm
Redline:
6500 rpm
Fuel System
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
Fuel Delivery:
Sequential Multi-Port Fuel Injection (SFI)
Ignition Type:
Distributorless Ignition System (DIS) with individual ignition coils
Fluid Specifications
Engine Oil Type:
MB 229.5 Specification (e.g., Mobil 1 0W-40 Synthetic)
Engine Oil Capacity:
8.5 Liters (9.0 US Quarts)
Coolant Type:
Mercedes-Benz Approved (e.g., G48/Zerex G48) - Ethylene Glycol based
🔧 Transmission
Standard
Transmission Type:
5-Speed Automatic (AMG SPEEDSHIFT)
Transmission Model Code:
722.633
Features
Shift Modes:
Comfort (C) and Sport (S) modes
Torque Converter Lockup:
Electronically controlled lockup for improved efficiency
Fluid Specifications
Transmission Fluid Type:
MB 236.10 or MB 236.12 (e.g., Pentosin ATF 1 or Mobil ATF 134)
Transmission Fluid Capacity:
8.0 Liters (8.5 US Quarts) - Dry fill
📐 Dimensions
Exterior
Length:
4705 mm (185.2 in)
Width:
1740 mm (68.5 in)
Height:
1402 mm (55.2 in)
Wheelbase:
2717 mm (107.0 in)
Front Track:
1492 mm (58.7 in)
Rear Track:
1485 mm (58.5 in)
Weights
Curb Weight:
Approx. 1690 kg (3726 lbs)
Gross Vehicle Weight Rating:
Approx. 2120 kg (4674 lbs)
Towing Capacity:
Not Specified (Typically Not Recommended/Allowed for AMG models)
🛡️ Safety Features
Ratings
NHTSA Frontal Impact:
5-Star (for comparable model year CLK Coupe)
IIHS Side Impact:
Good (for comparable model year CLK Coupe)
Active Features
Traction Control:
ASR (Anti-Slip Regulation)
Stability Control:
ESP (Electronic Stability Program)
ABS:
Anti-lock Braking System
Passive Features
Airbags:
Dual front airbags, front side airbags, optional head curtain airbags.
Seat Belts:
Pretensioning front seat belts with force limiters, rear 3-point seat belts.
Rollover Protection:
Pop-up roll bars integrated behind rear headrests (for convertible variants).
💡 Technology Features
Infotainment
Audio System:
Factory premium audio system (e.g., Bose or Harmon Kardon), often with CD player and AM/FM tuner.
Navigation:
Optional COMAND (Cockpit Management and Navigation) system.
Driver Assistance
Parking Assistance:
Optional Parktronic parking sensors (front and rear).
Cruise Control:
Standard cruise control with speed limiter function.
Connectivity
Connectivity Features:
Early Bluetooth integration (optional, varying capabilities), teleaid emergency call system.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Flexible service system (ASSYST), typically 10,000-15,000 miles or 1 year, depending on driving conditions.
Transmission Fluid Service:
Recommended every 50,000 - 70,000 miles for optimal performance and longevity of the 722.6 transmission.
Spark Plug Replacement:
Typically every 100,000 miles for the iridium-tipped spark plugs used in the M113 engine.
Coolant Flush:
Recommended every 30,000-50,000 miles or 2-4 years.
Fluid Specifications
Brake Fluid Type:
DOT 4 Plus (e.g., Mercedes-Benz Genuine Brake Fluid or equivalent).
Power Steering Fluid Type:
MB 236.3 Specification (e.g., Pentosin CHF 11 S or equivalent).
Known Issues
Common Wear Items:
Front lower control arm bushings, serpentine belt, camshaft position sensors, ignition coils, mass airflow sensor (MAF).
Transmission Considerations:
Valve body issues, conductor plate failures can occur with age and mileage, affecting shifting quality and diagnostic codes.
Interior Wear:
Driver's seat bolster wear, dashboard material delamination (especially in hot climates).
Electronics Considerations:
Door module issues (window regulators, mirror motors), CAN bus communication errors, head unit malfunctions.
📚 Vehicle History
Brand Heritage
Manufacturer Legacy:
Mercedes-Benz, renowned for luxury, engineering, and innovation in automotive history.
Model Evolution
Clk Class Introduction:
The CLK-Class (W208/W209) was introduced as a more stylish, coupe and convertible alternative to the C-Class sedan, bridging the gap between the C-Class and E-Class.
Clk55 Amg Development:
The CLK55 AMG represented the top-tier performance model, featuring significant AMG engineering enhancements to the powertrain, suspension, and braking systems.
Production
Production Era:
W209 generation produced from 2002 to 2010. The CLK55 AMG variant was primarily for the earlier W209 phase.
Manufacturing Location:
Germany (primarily Bremen assembly plant).
🏆 Awards & Recognition
Recognitions
Performance Awards:
While specific awards for the 2002 CLK55 AMG are less documented than newer models, it was consistently recognized by automotive press for its blend of luxury, performance, and AMG's tuning expertise. Often featured in 'best performance coupes' lists.
Ratings
Driving Dynamics:
Praised for sharp handling, powerful acceleration, and comfortable long-distance cruising capabilities.
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