Engine:
        
        
            Complete engine service, diagnosis, and repair
        
     
    
        
            Control System:
        
        
            Engine control, transmission control, chassis control systems
        
     
    
        
            Mechanical:
        
        
            All mechanical components and systems
        
     
    
        
            Fuel System:
        
        
            Fuel delivery, injection, and management
        
     
    
        
            Emission Control:
        
        
            Emission system diagnosis and repair
        
     
    
        
            Cooling System:
        
        
            Cooling system service and repair
        
     
    
        
            Lubrication System:
        
        
            Lubrication systems and fluid specifications
        
     
    
        
            Ignition Starting Charging:
        
        
            Ignition, starting, and charging system service
        
     
    
        
            Automatic Transmission:
        
        
            Automatic transmission service, diagnosis, and repair
        
     
    
        
            Manual Transmission:
        
        
            Manual transmission service, diagnosis, and repair (if applicable)
        
     
    
        
            Drivetrain:
        
        
            Transfer case, propeller shaft, drive shafts, differentials, axles
        
     
    
        
            Suspension:
        
        
            Front and rear suspension systems
        
     
    
        
            Wheels And Tires:
        
        
            Wheel and tire service, alignment
        
     
    
        
            Brake Control:
        
        
            Brake system control modules and hydraulics
        
     
    
        
            Brakes:
        
        
            Brake system service, diagnosis, and repair
        
     
    
        
            Parking Brake:
        
        
            Parking brake system service
        
     
    
        
            Steering Column:
        
        
            Steering column assembly and components
        
     
    
        
            Power Steering:
        
        
            Power steering system service
        
     
    
        
            Air Conditioning:
        
        
            Air conditioning system service and repair
        
     
    
        
            Restraint System:
        
        
            Supplemental Restraint System (SRS) - Airbags and related components
        
     
    
        
            Seat Belts:
        
        
            Seat belt system service and repair
        
     
    
        
            Immobilizer:
        
        
            Engine immobilizer system diagnosis and repair
        
     
    
        
            Cruise Control:
        
        
            Cruise control system service
        
     
    
        
            Wiper Washer:
        
        
            Wiper and washer system service
        
     
    
        
            Door Locks:
        
        
            Door lock and central locking systems
        
     
    
        
            Instrument Panel:
        
        
            Instrument cluster, gauges, and indicators
        
     
    
        
            Seats:
        
        
            Seat adjustment and related systems
        
     
    
        
            Doors Hood:
        
        
            Engine hood, doors, latches, and hinges
        
     
    
        
            Exterior Interior Trim:
        
        
            Exterior and interior trim components
        
     
    
        
            Electrical System:
        
        
            Comprehensive electrical system diagnosis and repair
        
     
    
        
            Multiplex Can Communication:
        
        
            Multiplex communication systems (CAN bus) diagnosis
        
     
    
        
            Audio Visual:
        
        
            Audio and visual system components and troubleshooting
        
     
    
        
            Meter Systems:
        
        
            All meter and gauge systems
        
     
    
        
            Horn:
        
        
            Horn system service
        
     
    
        
            Windshield Glass Mirror:
        
        
            Windshield, glass, and mirror replacement and service
        
     
    
    
        
            Maintenance:
        
        
            Scheduled maintenance, fluid changes, filter replacements
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic procedures for all systems
        
     
    
        
            Repair:
        
        
            Step-by-step repair instructions for all components
        
     
    
        
            Diagnosis:
        
        
            In-depth diagnostic procedures
        
     
    
        
            Engine Rebuild:
        
        
            Complete engine rebuild procedures, including component disassembly, inspection, repair, and reassembly with torque specifications.
        
     
    
        
            Transmission Overhaul:
        
        
            Detailed procedures for automatic transmission overhaul, including hydraulic control unit (HCU) service and torque converter replacement.
        
     
    
        
            Brake System Overhaul:
        
        
            Procedures for servicing and replacing brake components, including calipers, rotors, pads, and brake lines, as well as ABS/ESP system component diagnostics.
        
     
    
        
            Electrical Component Replacement:
        
        
            Step-by-step instructions for replacing various electrical components, from sensors to control modules.
        
     
    
        
            Chassis And Suspension Repair:
        
        
            Detailed procedures for suspension component replacement (struts, shocks, control arms, bushings), steering system repair, and wheel alignment specifications.
        
     
    
        
            Body And Trim Service:
        
        
            Instructions for servicing doors, latches, hinges, and interior/exterior trim panels.
        
     
    
    
        
            Depth:
        
        
            Factory-level detail, equivalent to dealership technician manuals
        
     
    
        
            Documentation Type:
        
        
            Step-by-step instructions, diagrams, illustrations, wiring schematics, specifications
        
     
 
    
    
    
        
            Engine Options 2012 Glk:
        
        
            Likely includes gasoline engines such as the 3.5L V6 (e.g., GLK350) and potentially a 2.0L or 2.2L diesel (e.g., GLK220 CDI, GLK250 BlueTEC) depending on market. Specific engine codes (e.g., M272/M276 for V6, OM651 for diesel) would be detailed in the manual.
        
     
    
    
        
            Horsepower Torque:
        
        
            Specific horsepower and torque figures for each engine variant would be provided, along with detailed performance data.
        
     
    
    
        
            Fuel Injection Type:
        
        
            Details on the fuel delivery system, likely including multi-port fuel injection (MPI) or direct injection (DI), and associated fuel pressure specifications.
        
     
    
    
        
            Cooling System Components:
        
        
            Details on radiator, water pump, thermostat, coolant hoses, and their service procedures.
        
     
 
    
    
    
        
            Scheduled Maintenance Intervals:
        
        
            Detailed schedule for regular maintenance, often based on the 'Active Service System' (ASSYST), indicating intervals for oil changes, filter replacements, brake fluid flushes, etc.
        
     
    
    
        
            Engine Oil Spec:
        
        
            Specific Mercedes-Benz approved engine oil viscosity grades (e.g., MB 229.5, MB 229.51) and capacities.
        
     
    
        
            Transmission Fluid Spec:
        
        
            Approved automatic transmission fluid (ATF) specifications (e.g., MB 236.14) and recommended change intervals.
        
     
    
        
            Coolant Spec:
        
        
            Mercedes-Benz approved coolant specifications and mixture ratios.
        
     
    
        
            Brake Fluid Spec:
        
        
            DOT 4 brake fluid specification.
        
     
    
        
            Power Steering Fluid Spec:
        
        
            Approved power steering fluid type and specifications.
        
     
    
        
            Differential Fluid Spec:
        
        
            Specifications for front and rear differential fluids, including viscosity and API service classification.
        
     
    
        
            Transfer Case Fluid Spec:
        
        
            Specifications for transfer case fluid, if applicable to the specific GLK configuration.
        
     
    
    
        
            Common Glk Issues 2012:
        
        
            While not explicit in the product description, the manual would cover common issues for this model, such as potential oil leaks from the valve cover or oil cooler seals, issues with the 7G-TRONIC transmission solenoids, or specific electrical gremlins related to the CAN bus system.