Manual Coverage
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Systems Covered
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Engine Mechanical:
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All gasoline and diesel engine overhauls, component replacement, timing, diagnostics, emissions controls.
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Transmission Mechanical:
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Automatic Transmission (722.6 NAG1) and Manual Transmission (if applicable) overhaul, component replacement, fluid service, troubleshooting.
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Drivetrain:
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Front Axle, Rear Axle, Driveshafts, Differential, Wheel Bearings, CV Joints.
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Brakes:
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ABS, ESP, SBC (Sensotronic Brake Control - early models), Brake Calipers, Rotors, Lines, Fluid Service, Parking Brake.
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Suspension Steering:
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Front and Rear Suspension Systems, Shock Absorbers, Springs, Control Arms, Bushings, Power Steering System, Steering Rack, Tie Rods.
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Electrical System:
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12V Battery System, Alternator, Starter, Fuses, Relays, Wiring Diagrams, Lighting Systems, Power Accessories.
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Body Interior:
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Body Panels, Doors, Hood, Trunk, Bumpers, Seats, Dashboard, Trim, Headliner, Sunroof, Windows.
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HVAC:
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Climate Control System, A/C Compressor, Condenser, Evaporator, Heater Core, Blower Motor, Controls.
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Comfort Controls:
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Power Seats, Heated Seats, Memory Seats, Power Mirrors, Power Windows, Keyless Entry, Central Locking.
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Diagnostics:
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OBD-II Diagnosis, Diagnostic Trouble Codes (DTCs), Sensor Data Interpretation, Special Tools for Diagnosis.
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Procedures Included
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Scheduled Maintenance:
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Oil Changes, Filter Replacements, Spark Plug Replacement, Coolant Service, Brake Fluid Service, Transmission Fluid Service, Air Filter Replacement.
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Routine Repairs:
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Component replacement (e.g., alternator, starter, water pump, fuel pump), belt replacement, hose replacement.
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Engine Rebuilding:
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Engine teardown, inspection, machining specifications, reassembly, torque specifications.
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Transmission Overhaul:
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Complete disassembly, part identification, reassembly of automatic and manual transmissions.
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Brake System Service:
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Brake pad and rotor replacement, caliper overhaul, bleeding procedure, SBC system calibration.
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Suspension Component Replacement:
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Strut/shock absorber replacement, control arm replacement, ball joint replacement, steering component replacement.
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Electrical Component Diagnosis:
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Troubleshooting of electrical faults, sensor testing, actuator testing, wiring harness repair.
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Body Panel Alignment:
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Door, hood, trunk alignment procedures, panel repair and replacement.
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HVAC System Repair:
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Refrigerant system servicing, component replacement, leak detection, control module diagnosis.
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Troubleshooting Guides:
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Systematic approaches to diagnosing common and complex problems with detailed symptom-to-cause mapping.
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Technical Depth
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Depth:
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Comprehensive (A-Z), covering basic maintenance to complete overhauls and advanced diagnostics.
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Diagnostic Capabilities:
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Detailed guidance on using diagnostic scanners, interpreting live data, and performing actuator tests.
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Wiring Diagrams:
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Full electrical schematics for all major systems, including component location and connector pinouts.
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Torque Specifications:
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Precise torque values for all critical fasteners across all vehicle systems.
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Specifications Tolerances:
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Detailed dimensional specifications and wear tolerances for engine, transmission, and suspension components.
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Special Tool Requirements:
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Identification and use of specialized tools required for specific repair and diagnostic procedures.
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Maintenance
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Service Intervals
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Oil Change Interval:
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Typically 10,000 miles (16,000 km) or 1 year, whichever comes first (flexible service system, confirm with vehicle display).
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Transmission Fluid Service:
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Recommended every 60,000 miles (100,000 km) for automatic transmissions (fluid and filter change).
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Brake Fluid Service:
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Every 2 years.
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Fluid Specifications
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Engine Oil Type:
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MB 229.5 or MB 229.51 (synthetic, specific viscosity depends on engine, e.g., 0W-40, 5W-40).
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Coolant Type:
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MB 325.0 / 326.0 (Antifreeze/Coolant).
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Known Issues
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Common W211 Problems:
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SBC system failure (early models), Oil cooler leaks, Balance shaft gear failure (M272/M273), MAF sensor issues, Window regulator failures, Sunroof drain blockages, Heater control valve leaks, SRS module errors.
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Recommended Preventative Maintenance:
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Regularly check and replace breather hoses, inspect oil seals, and service the cooling system thoroughly.
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