Powertrain:
Engine, Fuel System, Ignition System, Exhaust System, Transmission (Automatic)
Chassis:
Suspension, Steering, Brakes (ABS, ESP), Wheels & Tires
Electrical:
Body Control Modules (BCM), Instrument Cluster, Lighting, Power Windows/Locks/Mirrors, Climate Control, Audio System, Navigation System, CAN Bus Network
Body:
Body & Frame, Exterior Trim, Interior Trim, Doors, Hood, Trunk, Convertible Top (A209)
Powertrain:
Engine mechanicals, engine control systems (ME-SFI), fuel delivery, ignition timing, emissions control, cooling system, exhaust system, automatic transmission (722.6) operation, torque converter, control module.
Maintenance:
Scheduled maintenance, oil changes, fluid checks/changes, filter replacements, spark plugs
Diagnostics:
Troubleshooting guides, fault code interpretation, diagnostic flowcharts, common problems and solutions
Repair Overhaul:
Component removal, installation, disassembly, reassembly, adjustments, calibration
Technical Specifications:
Torque values, tolerances, fluid capacities, electrical schematics, component identification
Engine Repair:
Engine removal/installation, cylinder head removal/installation, camshaft timing, piston/connecting rod service, crankshaft service, lubrication system overhaul.
Transmission Repair:
Transmission fluid and filter replacement, valve body service, transmission control module diagnosis, torque converter replacement, transmission overhaul procedures.
Electrical Schematics:
Detailed wiring diagrams for all major electrical systems, including engine control, lighting, comfort systems, and CAN bus communication.
Suspension Steering Repair:
Strut and shock absorber replacement, control arm bushing replacement, ball joint service, power steering pump and rack diagnosis and replacement, wheel alignment specifications.
Brake System Repair:
Brake pad and rotor replacement, caliper service, brake fluid flush and bleeding, ABS and ESP component diagnosis (including potential SBC system service if applicable to specific 2004 models).
Body And Interior Repair:
Door panel removal, seat removal, convertible top system troubleshooting and repair (A209), body panel replacement, glass replacement.
Depth:
Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts
Diagnostic Tools:
Information regarding the use of Mercedes-Benz diagnostic equipment (e.g., STAR Diagnosis system) and common OBD-II diagnostic procedures.
Oil Change Interval:
Variable, typically indicated by the 'Assyst' service reminder system, often around 10,000-15,000 miles or 1 year
Major Service Interval:
Refer to 'Assyst' or specific mileage milestones (e.g., 30,000, 60,000 miles) for spark plug replacement, brake fluid flush, etc.
Engine Oil Type:
MB-Approval 229.5 (e.g., SAE 0W-40 or 5W-40 synthetic)
Engine Oil Capacity:
8.0 Liters (8.5 US Quarts) with filter change
Brake Fluid Type:
DOT 4 (MB-Approval 331.0)
Common Problems:
Mass Air Flow (MAF) sensor issues, O2 sensor failures, ignition coil pack failures, SBC brake system faults (if equipped with early SBC units), window regulator issues, convertible top hydraulic leaks/failures (A209)
Preventative Maintenance:
Regular cleaning of MAF sensor, checking for vacuum leaks, inspecting electrical connectors, timely fluid changes.
