Owner-level operations, maintenance checks, fluid specifications, capacities, and basic troubleshooting. Does not cover in-depth repair diagnostics or component replacement.
📊 Manual Specifications
File Format
File Format:
PDF
Searchability:
Likely text-searchable if digitally rendered from original OCR'd source
Print Quality
Print Quality Expectation:
High-resolution, suitable for printing all pages
Binding Type
Binding Type:
N/A (Digital Format)
Paper Type
Paper Type:
N/A (Digital Format)
⚙️ Engine Specifications
Primary Engine
Engine Code:
M113.969
Engine Type:
Naturally Aspirated V8
Displacement:
4.973 L (303.4 cu in)
Bore X Stroke:
97.0 mm x 84.0 mm
Compression Ratio:
10.0:1
Performance
Horsepower:
302 hp @ 6000 rpm
Torque:
339 lb-ft @ 3250 rpm
Fuel System
Fuel Delivery:
Sequential Multi-Point Fuel Injection (SFI)
Recommended Fuel:
Premium Unleaded Gasoline (91 octane or higher)
Maintenance
Ignition System:
Distributorless Electronic Ignition (2 spark plugs per cylinder)
🔧 Transmission
Standard
Transmission Type:
5-speed Automatic with TouchShift
Transmission Model:
722.6 (5G-TRONIC)
Features
Shift Modes:
Comfort (C) and Sport (S) modes
Torque Converter Lockup:
Yes, at various speeds for improved efficiency
📐 Dimensions
Exterior
Length:
183.7 inches (4666 mm)
Width:
70.2 inches (1783 mm)
Height:
53.7 inches (1364 mm)
Wheelbase:
106.7 inches (2710 mm)
Weights
Curb Weight:
Approx. 3858 lbs (1750 kg)
Gross Vehicle Weight Rating:
Approx. 4718 lbs (2140 kg)
🛡️ Safety Features
Ratings
NHTSA Front Impact:
Not explicitly rated for this specific model/year as a convertible, but generally high standards for Mercedes-Benz
IIHS Side Impact:
Not explicitly rated for this specific model/year as a convertible
Active Features
Braking System:
Anti-lock Braking System (ABS) with Brake Assist (BAS)
Stability Control:
Electronic Stability Program (ESP)
Traction Control:
ASR (Acceleration Slip Regulation)
Passive Features
Airbags:
Front airbags, front side airbags, and optional front head/thorax airbags
Rollover Protection:
Automatically deploying rollover protection bars integrated behind the headrests
Seatbelts:
Pretensioners and force limiters for front seats, integrated seatbelts
💡 Technology Features
Infotainment
Audio System:
COMAND (Cockpit Management and Navigation) system with CD player, radio, and optional navigation. High-quality speaker system.
Display:
Central color display for COMAND, instrument cluster displays
Driver Assistance
Parking Assistance:
Optional PARKTRONIC parking aid sensors
Cruise Control:
Standard Cruise Control with SPEEDTRONIC speed limiter
Connectivity
Phone Integration:
Optional Bluetooth hands-free communication system
🔧 Maintenance
Service Intervals
Oil Change Interval:
Variable, based on Flexible Service System (ASSYST) or approximately every 10,000 miles / 1 year.
Major Service Intervals:
Scheduled maintenance 'A' and 'B' service at intervals indicated by ASSYST, typically around 10,000-15,000 miles.
Fluid Specifications
Engine Oil Type:
Synthetic SAE 0W-40 or 5W-40, meeting MB-Approval 229.5
Can include SBC hydraulic unit issues (though less common on the 2004 model compared to earlier years), various sensor failures (e.g., MAF sensor), oil leaks from valve cover gaskets or oil cooler seals, and convertible top hydraulic system leaks or pump failures.