🏷️ Basic Information

Make:

Mercedes-Benz

Model:

S430

Year:

2004

Chassis Code:

W220

Engine Code:

M113.940

👋 Introduction

Market Position:

The 2004 Mercedes-Benz S430 (W220) represented the pinnacle of luxury and technology for its era, targeting executive and affluent buyers seeking sophisticated comfort, performance, and advanced features.

Competitive Analysis:

Competed directly with other flagship luxury sedans such as the BMW 7 Series (E65/E66), Audi A8 (D3), Lexus LS (XF30), and Jaguar XJ (X350).

Key Features:

Advanced COMAND infotainment system, AIRMATIC dual-control air suspension, optional 4MATIC all-wheel drive, advanced safety systems (e.g., DISTRONIC adaptive cruise control), premium interior materials, refined ride quality, and a potent V8 engine.

📋 Manual Details

Coverage Areas:

Full vehicle service and repair

Page Count:

Extensive (Specific count not provided, typical for official software)

Manual Type:

Service and Repair Manual Software (Official License)

Language:

English

Format:

Software (Digital Download)

📖 Manual Coverage

Systems Covered:

Engine, Transmission (722.6 NAG1), Drivetrain, Suspension, Steering, Brakes (including ABS/ESP), HVAC, Electrical System (including CAN Bus), Body Control Modules, SRS (Airbags), Fuel System, Cooling System, Exhaust System, Interior Systems, Exterior Lighting, Diagnostic Procedures, Troubleshooting

Procedures Included:

Routine maintenance, diagnostics, troubleshooting, component removal and installation, repair procedures, electrical system diagnosis, wiring diagrams, torque specifications, tightening sequences, fluid capacities and specifications, component testing, system adjustments, factory recall procedures

Technical Depth:

Comprehensive from basic maintenance to advanced diagnostics and major component overhaul

📊 Manual Specifications

File Format:

Proprietary Software Platform (likely executable or accessible via a secure viewer)

Print Quality:

N/A (Digital Software)

Binding Type:

N/A (Digital Software)

Paper Type:

N/A (Digital Software)

⚙️ Engine Specifications

Engine Type:

4.3L V8 SOHC (M113.940)

Displacement:

4266 cc (4.3 Liters)

Horsepower:

275 hp @ 6000 rpm

Torque:

295 lb-ft @ 3200-4500 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI) - Bosch Motronic ME 2.8

Fuel Type:

Premium Unleaded Gasoline (91 Octane or higher recommended)

Engine Management System:

CAN Bus controlled with extensive sensor network (e.g., Crankshaft Position Sensor, Camshaft Position Sensors, Mass Air Flow Sensor, Oxygen Sensors)

Cooling Type:

Liquid-cooled with thermostatically controlled fan and auxiliary electric fan

Oil Type:

MB 229.5 Specification Synthetic Engine Oil (e.g., Mobil 1 0W-40 or equivalent)

Oil Capacity:

8.5 Liters (Approx. 9 US Quarts)

🔧 Transmission

Transmission Type:

5-Speed Automatic (NAG1/722.6)

Gear Ratios:

1st: 3.59, 2nd: 2.19, 3rd: 1.41, 4th: 1.00, 5th: 0.83, Reverse: 3.17

Transmission Features:

TouchShift (manual selection), Comfort/Sport modes, Electronic control unit (TCU)

Transmission Fluid Type:

MB 236.10 Specification ATF (e.g., Pentosin ATF1 or equivalent)

Transmission Fluid Capacity:

Approx. 8.5 Liters (for overhaul, less for fluid change)

📐 Dimensions

Length:

198.6 inches (5045 mm)

Width:

73.7 inches (1872 mm)

Height:

57.4 inches (1458 mm)

Wheelbase:

116.3 inches (2954 mm)

Curb Weight:

Approximately 3900-4100 lbs (1769-1860 kg)

Gross Vehicle Weight Rating:

Approximately 5200 lbs (2359 kg)

Trunk Volume:

17.7 cu ft (501 Liters)

Wheelbase Bolt Pattern:

5x112 mm

Wheel Size Standard:

17-inch Alloy

Tire Size:

235/55R17

🛡️ Safety Features

NHTSA Front Crash Test Rating:

5-Star (for driver and passenger)

IIHS Top Safety Pick:

Yes (Good ratings in frontal and side impact tests)

Active Safety Features:

ABS (Anti-lock Braking System), ESP (Electronic Stability Program), Traction Control System (TCS), Brake Assist (BAS), DISTRONIC (optional adaptive cruise control)

Passive Safety Features:

Frontal airbags (dual-stage), Side airbags (front and rear), Window airbags (front and rear), Pre-tensioning seatbelts with force limiters, Active Head Restraints (Front-center)

Lighting Features:

Bi-Xenon Headlights with cornering illumination (optional), Automatic Headlight Control, LED Brake Lights

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Navigation System) with integrated CD player, radio, optional navigation, and climate control interface.

Audio System:

Standard Bose premium sound system, optional Harman Kardon Logic 7 surround sound system.

Driver Assistance Features:

PARKTRONIC parking assist, optional DISTRONIC adaptive cruise control, rain-sensing wipers, auto-dimming rearview mirror.

Connectivity Features:

UHI (Universal Hands-free Interface) for integrated Bluetooth phone connectivity (requires compatible phone module or adapter), optional Sirius Satellite Radio.

Comfort Features:

Multi-contour front seats with heating and ventilation (optional), multi-zone automatic climate control, power-adjustable steering column, keyless-go (optional).

🔧 Maintenance

Service A Interval:

Approximately 10,000 miles or 12 months (whichever comes first), indicated by 'Service A' on the dashboard display.

Service B Interval:

Approximately 20,000 miles or 24 months (whichever comes first), indicated by 'Service B' on the dashboard display.

Coolant Type:

MB 325.0 or 326.0 Specification Antifreeze/Coolant (typically a blue silicate-free formula)

Brake Fluid Type:

DOT 4 Plus (or MB 331.0 Specification)

Power Steering Fluid Type:

MB 343.0 Specification Hydraulic Fluid (or CHF 11S equivalent)

Common Issues:

Air suspension (struts, compressor, lines), ABC (Active Body Control) suspension issues (if equipped), Crankshaft position sensor failures, Ignition coil failures, SAM module (Signal Acquisition Module) issues, Biodegradable wiring harness insulation degradation, Water ingress into ECU or fuse boxes, Transmission conductor plate failures, O2 sensor failures.

Oil Filter Part Number:

Mann-Filter HU 718/5y, Mahle OX 165/1 DE, Mercedes-Benz A 112 180 00 09

Air Filter Part Number:

Mann-Filter C 35115, Mahle LX 1054, Mercedes-Benz A 271 094 01 04

Spark Plug Type:

NGK Iridium (e.g., IFR6AI-11) or equivalent, gap 1.1mm

📚 Vehicle History

Brand Heritage:

Mercedes-Benz boasts a long and distinguished history in luxury automotive manufacturing, consistently setting benchmarks for engineering, comfort, and safety since its inception.

Model Evolution:

The W220 generation S-Class, introduced in 1998, marked a significant evolution in design and technology from its predecessor (W140). The 2004 model year represents a mid-cycle refresh with updated styling, features, and powertrain enhancements.

Production Period:

W220 generation: 1998-2005

Manufacturing Location:

Sindelfingen, Germany

🏆 Awards & Recognition

Recognitions:

The W220 S-Class generally received critical acclaim for its luxurious interior, advanced technology, and refined driving experience, often lauded as a benchmark in the luxury sedan segment.

Ratings:

Consistently ranked high in customer satisfaction surveys and professional reviews for its class.

Certifications:

N/A (Specific certifications are not typically listed for individual model years, but the brand holds numerous industry standard certifications).