Market Position:
Luxury performance SUV, niche segment with significant off-road capability and AMG enhanced performance
Competitive Analysis:
Competed against other high-performance SUVs and luxury off-roaders, offering a unique blend of brute force and brand prestige
Key Features:
Hand-built AMG V8 engine, robust W463 chassis, three locking differentials, luxurious interior, iconic design
Manual Purpose:
To provide authorized technicians and knowledgeable owners with comprehensive diagnostic, repair, and maintenance procedures for the 2004 G55 AMG
Coverage Areas:
Engine, Transmission, Drivetrain, Suspension, Steering, Brakes, Electrical Systems, HVAC, Body, Interior, Diagnostic Procedures, Maintenance Schedules
Page Count:
Thousands of pages (digital software)
Manual Type:
Official Service and Repair Manual Software
Format:
Software (likely PDF or proprietary viewer)
Engine Service:
Complete overhaul, component testing, timing, fuel injection, ignition, cooling, lubrication
Transmission Service:
5-speed automatic (722.6), hydraulic control, electronic control unit, torque converter, overhaul procedures
Drivetrain Service:
Front and rear differentials, transfer case, driveshafts, CV joints, locking differentials
Suspension Service:
Independent front suspension, solid rear axle, coil springs, shock absorbers, bushings, alignment specifications
Steering Service:
Hydraulic power steering system, steering gear, linkages, steering column, power steering fluid specifications
Brake Service:
Front and rear disc brakes, ABS, EBD, brake fluid type and bleeding procedures, caliper and rotor specifications
Electrical System Service:
Wiring diagrams, component testing, fuses and relays, battery, alternator, starter, lighting, body control module (BCM), CAN bus
HVAC Service:
Air conditioning system, heater core, blower motor, climate control module, refrigerant type and charge
Body And Interior Service:
Panel removal and installation, door mechanisms, glass, seats, trim panels, exterior lighting
Preventative Maintenance:
Oil change intervals, filter replacement, fluid checks, spark plug replacement, belt inspection and replacement
Troubleshooting:
Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, common fault diagnosis
Repair Procedures:
Step-by-step instructions for component removal, repair, and reinstallation with torque specifications
Diagnostic Tools:
Information on using Mercedes-Benz diagnostic equipment (e.g., Star Diagnosis/XENTRY) for advanced diagnostics and programming
Technical Depth:
Comprehensive, covering from basic maintenance to complete engine and transmission rebuilds, including complex electrical diagnostics
Engine Type:
Supercharged 5.4L V8 SOHC
Engine Displacement:
5439 cc
Horsepower:
469 hp @ 6100 rpm
Torque:
516 lb-ft @ 2750-4000 rpm
Fuel Delivery:
Electronic fuel injection (EFI) with supercharger
Recommended Fuel:
Premium Unleaded 91 octane or higher
Coolant Type:
Mercedes-Benz approved coolant (e.g., G48 or equivalent blue/green ethylene glycol mixture)
Oil Type:
MB 229.5 Approved Synthetic Oil (e.g., Mobil 1 0W-40 or equivalent)
Oil Capacity:
Approx. 8.5 liters (with filter)
Transmission Type:
5-speed Automatic (722.6)
Transmission Features:
TouchShift manual shifting, electronically controlled, adaptive shift programs
Transmission Fluid Type:
Mercedes-Benz MB 236.10 or MB 236.12 Automatic Transmission Fluid (ATF)
Transmission Fluid Capacity:
Approx. 8-9 liters (dry fill)
Infotainment System:
COMAND (Cockpit Management and Navigation) system with CD player, AM/FM radio, optional navigation and premium audio
Driver Assistance Features:
Cruise Control, Parking Sensors (front and rear)
Connectivity Options:
Limited by 2004 standards; may include CD changer integration, optional phone pre-wiring
Lighting Features:
Xenon headlights (low beam), automatic headlight control
Oil Change Interval:
Every 10,000 miles or 12 months, whichever comes first (under normal driving conditions; consult manual for severe conditions)
Transmission Service Interval:
Every 40,000-60,000 miles (fluid and filter replacement)
Spark Plug Replacement Interval:
Refer to manual, typically around 60,000-100,000 miles for iridium plugs
Brake Fluid Type:
DOT 4 (Mercedes-Benz recommends MB 331.0)
Power Steering Fluid Type:
MB 236.3 specification (e.g., Pentosin CHF 11S or equivalent)
Differential Fluid Type:
API GL-5, SAE 75W-90 or 75W-140 (specific grades for front/rear and center diff may vary, consult manual)
Known Issues:
Supercharger clutch/pulley wear, potential for head gasket issues (less common on M113), catalytic converter failure, ABS sensor failures, interior electronics quirks
Common Repairs:
Supercharger belt replacement, suspension component bushings, brake pad and rotor replacement, exhaust system maintenance
Brand Heritage:
Mercedes-Benz has a long history of producing robust, high-quality vehicles, particularly known for luxury and engineering excellence.
Model Evolution:
The G-Class (W463) originated as a military vehicle in the late 1970s and evolved into a luxurious civilian model. The G55 AMG variant represents the pinnacle of performance for the W463 generation, introduced in 2002 with the supercharged V8.
Production Location:
Graz, Austria (manufactured by Magna Steyr for Mercedes-Benz)
Production Years For G55Amg:
2002-2004 (W463 Generation)
