🏷️ Basic Information

Make:

Mercedes-Benz

Model:

S55 AMG

Year:

2003

Chassis Code:

W220

Engine Code:

M113.991

👋 Introduction

Market Position:

The 2003 Mercedes-Benz S55 AMG (W220) was positioned as a high-performance, ultra-luxury executive sedan, competing with models from BMW (7 Series), Audi (A8), and Bentley. It represented the pinnacle of Mercedes-Benz engineering and comfort with a significant performance upgrade.

Competitive Analysis:

Competed with the BMW 745i/760i, Audi S8, Jaguar XJR, and Bentley Continental Flying Spur in terms of power, luxury, and advanced technology. The S55 AMG differentiated itself with its potent supercharged V8 engine and the sophisticated Active Body Control (ABC) suspension system.

Key Features:

Hand-built 5.5L V8 supercharged engine, Active Body Control (ABC) suspension, premium leather interior, advanced infotainment, AMG styling, superior ride comfort and performance balance.

📋 Manual Details

Coverage Areas:

Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical System, Climate Control, Bodywork, Interior, Diagnostics, Maintenance, Repair Procedures, Troubleshooting

Page Count:

Estimated 2000+ pages (typical for comprehensive Mercedes-Benz workshop manuals)

Manual Type:

Official Factory Service and Repair Manual Software

Language:

English

Format:

Software (likely digital, potentially searchable PDF or proprietary application)

📖 Manual Coverage

Systems Covered:

M113 5.5L Supercharged V8 Engine, 5-Speed Automatic Transmission (722.6), ABC (Active Body Control) Suspension, SIPS (Side Impact Protection System), ESP (Electronic Stability Program), ABS (Anti-lock Braking System), COMAND Infotainment System, HVAC, Body Control Modules, CAN Bus Communication, SRS (Supplemental Restraint System), Lighting, Power Accessories, Keyless Go, Navigation System

Procedures Included:

Routine Maintenance, Oil Changes, Filter Replacements, Spark Plug Replacement, Brake System Servicing, Suspension Component Repair, Steering System Overhaul, Electrical Diagnostics, Engine Troubleshooting and Repair, Transmission Removal and Installation, Supercharger Service, ABC Hydraulic System Maintenance, ECU Diagnostics and Programming, Airbag System Service, Body Panel Repair and Replacement, Interior Trim Removal and Installation

Technical Depth:

Comprehensive; from basic maintenance to complete engine and transmission rebuilds, including detailed wiring diagrams, diagnostic trouble codes (DTCs), and torque specifications.

Diagnostics:

Detailed diagnostic procedures, troubleshooting trees, fault code (DTC) explanations, and guidance on using diagnostic tools like STAR Diagnosis (XENTRY).

Wiring Diagrams:

Comprehensive electrical schematics for all vehicle systems, including engine control, transmission, ABS, ESP, SRS, lighting, and infotainment.

Torque Specifications:

Precise torque values for all fasteners, critical for engine, chassis, and suspension components.

Special Tools:

Identification and usage instructions for specialized Mercedes-Benz tools required for specific repair procedures.

Body And Trim:

Detailed procedures for removing and installing body panels, bumpers, doors, windows, and interior trim components.

📊 Manual Specifications

File Format:

Likely a proprietary application or PDF, optimized for digital access. Searchable text is a key feature for efficiency.

Print Quality:

Digital output allows for high-resolution printing of specific sections or full manual if applicable.

Binding Type:

N/A (Software format)

Paper Type:

N/A (Software format)

⚙️ Engine Specifications

Primary Engine:

M113 E55 ML (5.5L V8 Supercharged)

Horsepower:

493 hp @ 6100 rpm

Torque:

516 lb-ft @ 2650 rpm

Fuel System:

Multi-point Fuel Injection (MPI) with Bosch ME 2.8 engine management, intercooled Lysholm supercharger.

Displacement:

5439 cc

Bore Stroke:

97.0 mm x 92.0 mm

Compression Ratio:

9.0:1

Block Material:

Aluminum Alloy

Head Material:

Aluminum Alloy

Engine Management:

Bosch ME 2.8 Engine Control Unit (ECU)

Ignition System:

Distributorless ignition system with individual coil packs per cylinder.

🔧 Transmission

Standard:

AMG Speedshift 5G-Tronic Automatic Transmission (722.6)

Optional:

N/A (Standard for S55 AMG)

Features:

Manual shifting mode, sport and comfort modes, torque converter lock-up clutch.

Gear Ratios:

Typical: 3.59/2.19/1.41/1.00/0.83 (Final Drive: 2.82)

Fluid Type:

MB 236.10 Automatic Transmission Fluid (e.g., Shell ATF 134, Mobil ATF 134)

Fluid Capacity:

Approx. 8 Liters (for complete refill)

📐 Dimensions

Length:

5038 mm (198.3 in)

Width:

1855 mm (73.0 in)

Height:

1444 mm (56.9 in)

Wheelbase:

2945 mm (116.0 in)

Front Track:

1575 mm (62.0 in)

Rear Track:

1572 mm (61.9 in)

Curb Weight:

Approx. 1960 kg (4321 lbs)

Gross Weight:

Approx. 2500 kg (5512 lbs)

Towing Capacity:

Not typically specified for AMG models, designed for performance not towing.

Trunk Capacity:

500 Liters (17.7 cu ft)

🛡️ Safety Features

NHTSA Front Impact:

5-star (Likely, based on similar W220 models)

IIHS Small Overlap Front:

N/A (Vehicle predates this specific test)

Active Features:

ABS, ESP (Electronic Stability Program), ASR (Acceleration Skid Control), Brake Assist (BAS), Active Body Control (ABC)

Passive Features:

Front Airbags, Side Airbags, Curtain Airbags (front and rear), Seatbelt Pretensioners, Crumple Zones, Reinforced Safety Cell

Seat Belts:

3-point inertia-reel seat belts with belt tensioners and force limiters, active front head restraints.

💡 Technology Features

Infotainment System:

COMAND (Cockpit Management and Navigation) system with integrated CD player, navigation, radio, and climate control interface. Optional Bose sound system.

Driver Assistance:

Cruise Control, Rain-sensing wipers, Auto-dimming rearview mirror, Parking Assist (Parktronic), Xenon Headlights with automatic leveling and cleaning.

Connectivity:

Tele Aid (emergency calling), optional integrated mobile phone preparation (GSM).

Comfort Features:

Heated and Ventilated Front Seats, Multi-contour front seats with massage function, Dual-zone automatic climate control, Power-adjustable steering column and front seats with memory, Keyless-Go entry and start system.

🔧 Maintenance

Service A:

Typically every 10,000 miles or 12 months, whichever comes first (includes oil change, filter replacements, inspections).

Service B:

Typically every 20,000 miles or 24 months, whichever comes first (includes Service A items plus brake fluid flush, cabin air filter replacement, etc.).

Spark Plug Replacement:

Typically every 60,000 - 100,000 miles (depending on plug type, iridium recommended).

Transmission Service:

Fluid and filter change recommended every 40,000 - 60,000 miles, especially for high-performance applications.

Engine Oil:

SAE 0W-40 synthetic oil meeting MB 229.5 specification (e.g., Mobil 1 0W-40).

Coolant:

Glycol-based antifreeze meeting MB 325.0 or 326.0 specification (typically a blue/green color).

Brake Fluid:

DOT 4 specification, meeting MB 331.0.

Known Issues:

ABC suspension hydraulic leaks (struts, lines, pump), coil pack failure, crank position sensor failure, O2 sensor issues, transmission conductor plate failure, blower motor resistor failure, evaporator core leaks (leading to AC issues).

Engine Oil Capacity:

Approx. 8.5 Liters (with filter)

Coolant Capacity:

Approx. 10.5 Liters

Oil Filter Part Number:

Likely equivalent to Mahle OX38D, Mann-Filter HU713/1x, or Mercedes-Benz A0001802609.

Air Filter Part Number:

Likely equivalent to Mann-Filter C30176/3, Mahle LX1021/1, or Mercedes-Benz A2200942404.

📚 Vehicle History

Brand Heritage:

Mercedes-Benz has a long-standing reputation for luxury, engineering excellence, and automotive innovation, with its S-Class line being the flagship sedan representing the pinnacle of automotive technology and comfort.

Model Evolution:

The W220 S-Class generation (1998-2005) introduced significant advancements in electronics, safety, and comfort. The S55 AMG variant, introduced in late 1999/early 2000, evolved from a naturally aspirated V8 to the supercharged M113 E55 ML engine in 2002, significantly boosting performance.

Engine Upgrade Year:

2002 saw the introduction of the significantly more powerful supercharged M113 E55 ML engine, replacing the earlier naturally aspirated 5.4L V8.

Production Years W220:

1998-2005

Production Years S55 Amg:

1999/2000-2006 (with engine update in 2002)

Manufacturing Locations:

Sindelfingen, Germany

🏆 Awards & Recognition

Recognitions:

The W220 S-Class generally received acclaim for its ride quality, technology, and safety. Specific AMG models were recognized for their performance capabilities within the luxury segment.

Ratings:

Consistently ranked high by automotive publications for luxury and comfort, with the AMG models praised for their blend of performance and refinement.

Certifications:

Officially licensed product, indicating adherence to Mercedes-Benz standards for repair information.