Engine Mechanical:
Comprehensive diagnostics, disassembly, inspection, repair, and reassembly of all engine components (including cylinder head, block, crankshaft, pistons, connecting rods, valvetrain).
Engine Management:
Fuel injection system (EFI), ignition system, emissions control system, engine control module (ECM) diagnostics and programming, sensor testing and replacement.
Transmission Manual:
Service and repair of automatic transmissions (e.g., 5G-TRONIC), including torque converter, valve body, electronic control, clutch packs, and fluid service.
Brake System:
Hydraulic and pneumatic systems, ABS (Anti-lock Braking System), ESP (Electronic Stability Program), brake disc and pad replacement, caliper repair, brake fluid service, parking brake.
Suspension Steering:
Front and rear suspension components (struts, shock absorbers, control arms, ball joints, bushings), Active Body Control (ABC) system diagnosis and service, power steering system, steering rack and linkage.
Electrical System:
Wiring diagrams, fuse box locations, battery, alternator, starter motor, lighting system, power windows, power seats, mirrors, central locking, keyless entry.
Climate Control:
Automatic climate control system (THERMATIC/THERMOTRONIC), HVAC components, refrigerant service, blower motor, temperature sensors, actuators.
Body Interior:
Body panel removal and installation, door mechanisms, trunk lid, hood, interior trim components, seat removal and repair, airbag system.
Diagnostics Troubleshooting:
Extensive diagnostic trouble codes (DTCs) with explanations and pinpoint testing procedures, common fault diagnosis, component testing.
Scheduled Maintenance:
Detailed service intervals (e.g., A Service, B Service) with specific tasks for each interval.
Engine Repair:
Head gasket replacement, timing belt/chain service (if applicable), piston and ring replacement, bearing replacement, complete engine rebuild procedures.
Transmission Service:
Transmission fluid and filter change, torque converter replacement, valve body overhaul, clutch pack replacement, electronic control unit (TCU) adaptation.
Brake Overhaul:
Brake caliper rebuilding, rotor replacement, brake line replacement, ABS sensor diagnostics and replacement, bleeding procedure.
Suspension Components:
Shock absorber and strut replacement, control arm bushing replacement, ball joint replacement, power steering fluid flush, power steering pump replacement.
Electrical Diagnostics:
Troubleshooting parasitic draw, short circuits, open circuits; component testing using multimeters and oscilloscopes; wiring harness repair.
Climate Control Repair:
Refrigerant system evacuation and recharging, leak detection, AC compressor replacement, heater core replacement, blend door actuator replacement.
Bodywork Restoration:
Door hinge adjustment, fender alignment, bumper replacement, interior upholstery repair, seat motor replacement.
Diagnostic Tool Usage:
Instructions for using Mercedes-Benz diagnostic tools (e.g., STAR DIAGNOSIS) for fault code reading, data stream analysis, and component activation.
Depth Level:
Comprehensive: Covers everything from basic maintenance to complete engine and transmission overhauls, advanced diagnostics, and electronic system troubleshooting.
Diagnostic Detail:
Includes detailed troubleshooting trees, wiring diagrams, component specifications, and diagnostic trouble code (DTC) explanations.
Repair Procedures:
Step-by-step instructions with torque specifications, special tool requirements, and factory procedures.
Illustrations:
Likely includes detailed diagrams, schematics, and photographic illustrations for clarity.
Service A:
Typically around 10,000 miles or 12 months. Includes oil and filter change, tire rotation, inspection of brakes, fluids, and hoses.
Service B:
Typically around 20,000 miles or 24 months (or after two Service A visits). Includes all items from Service A plus cabin air filter replacement, brake fluid service, spark plug replacement (at specific intervals), etc.
Engine Oil Type:
Refer to specific engine variant; common spec is MB 229.1 or MB 229.3 (e.g., 5W-40 or 0W-40 synthetic).
Coolant Type:
Mercedes-Benz Approved Antifreeze/Coolant (e.g., G48 or similar silicate-free, ethylene glycol-based).
Brake Fluid Type:
DOT 4 Plus (or MB 331.0)
Abc Suspension Leaks:
Common issue with ABC suspension system hoses, struts, and pumps developing leaks or failures, leading to hydraulic fluid loss and suspension sag.
Catalytic Converters:
Premature failure of catalytic converters, particularly on V8 models.
Ignition Coils:
Failure of ignition coils, leading to misfires and rough running.
Srs Module Issues:
Occasional issues with the Supplemental Restraint System (SRS) module, causing airbag warning lights.
Oil Cooler Leaks:
Leaking oil cooler seals, particularly where the cooler lines connect to the main unit.