Engine Systems:
M113 V8 engine, cylinder heads, pistons, crankshaft, camshafts, valvetrain, lubrication system, cooling system, intake and exhaust systems, engine control module (ECM) diagnostics and calibration.
Transmission Systems:
5G-TRONIC automatic transmission (722.6), hydraulic control unit, torque converter, valve body, electronic control unit (TCU) diagnostics and repair.
Brake Systems:
Anti-lock Braking System (ABS), Electronic Stability Program (ESP), Brake Assist (BAS), hydraulic components, brake pads, rotors, calipers, parking brake, and system diagnostics.
Electrical Systems:
Complete wiring diagrams, fuse box locations, relay assignments, battery system, alternator, starter, lighting system (headlights, taillights, interior), power windows, locks, seats, mirrors, sunroof, instrument cluster, body control module (BCM), CAN bus communication.
Suspension And Steering:
Active Body Control (ABC) system (hydropneumatic suspension), struts, shocks, control arms, bushings, power steering system, steering column, steering gear, wheel alignment specifications.
HVAC Systems:
Automatic climate control, A/C compressor, refrigerant system, blower motor, heater core, climate control unit, ducting, flap actuators, and diagnostics.
Comfort And Control:
Keyless-Go, COMAND infotainment system, navigation, audio system, power seats with memory, climate-controlled seats, door locks, central locking, interior lighting, and ambient lighting.
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacements (oil, air, cabin, fuel), spark plug replacement, fluid flushes (coolant, brake fluid, transmission fluid), belt inspection and replacement.
Repair Procedures:
Engine overhaul, transmission rebuild, brake system repair, suspension component replacement, electrical component diagnosis and replacement, body panel repair, interior trim removal and installation.
Diagnostic Procedures:
OBD-II diagnostic trouble code (DTC) interpretation, live data stream analysis, component testing, sensor testing, actuator testing, system-specific troubleshooting trees.
Component Replacement:
Step-by-step instructions for replacing major components like engine, transmission, alternator, starter, A/C compressor, water pump, fuel pump, brake calipers, shock absorbers, and electronic modules.
Troubleshooting:
Detailed guides for diagnosing and resolving common and uncommon issues across all vehicle systems, including starting problems, performance issues, electrical faults, and comfort system malfunctions.
Depth:
Comprehensive: Covers everything from routine maintenance and fluid changes to in-depth engine and transmission overhauls, electrical system troubleshooting, and specialized system repairs (e.g., ABC suspension).
Diagnostic Tools:
Details procedures for using Mercedes-Benz diagnostic tools like STAR Diagnosis (or equivalent professional scan tools) for module programming, coding, and advanced diagnostics.
Oil Change Interval:
Every 10,000 miles (16,000 km) or annually, whichever comes first (as per flexible service indicator).
Major Service Interval:
Approx. every 30,000 miles (48,000 km) or as indicated by the service indicator (includes spark plugs, transmission service, coolant flush).
Coolant Type:
MB 325.0 / 326.0 (Blue Antifreeze/Coolant, e.g., Pentofrost SF)
Brake Fluid Type:
DOT 4 Plus (MB 331.0)
Common Problems:
ABC suspension leaks (struts, pump, lines), EIS (Electronic Ignition Switch) failure, SAM (Signal Acquisition Module) issues, door lock actuator failures, coolant leaks from plastic components, blower motor resistor failure.