Engine Mechanical:
        
        
            Detailed disassembly, assembly, repair, and adjustment procedures for the entire engine powertrain.
        
     
    
        
            Fuel System:
        
        
            Carburetor operation, fuel pump, fuel lines, fuel tank, and associated components.
        
     
    
        
            Cooling System:
        
        
            Radiator, water pump, thermostat, hoses, and coolant flow diagnostics.
        
     
    
        
            Ignition System:
        
        
            Distributor, ignition coils, spark plugs, timing adjustments, and electrical troubleshooting.
        
     
    
        
            Transmission:
        
        
            Clutch operation, gearbox disassembly, assembly, repair, and adjustment for manual transmissions.
        
     
    
        
            Drivetrain:
        
        
            Rear axle, differential, driveshafts, and wheel hub maintenance.
        
     
    
        
            Suspension System:
        
        
            Front and rear suspension components, shock absorbers, springs, bushings, and alignment procedures.
        
     
    
        
            Steering System:
        
        
            Steering column, steering rack, tie rods, and adjustment procedures.
        
     
    
        
            Braking System:
        
        
            Front disc brakes, rear drum brakes, master cylinder, brake lines, wheel cylinders, and bleeding procedures.
        
     
    
        
            Electrical System:
        
        
            Wiring diagrams, lighting system, charging system (alternator, voltage regulator), starting system (starter motor), battery, fuses, relays, and dashboard instruments.
        
     
    
        
            Body And Chassis:
        
        
            Body panel removal and installation, interior trim, doors, windows, locks, and basic structural repair information.
        
     
    
        
            Heating And Ventilation:
        
        
            Heater core, blower motor, ducting, and control mechanisms.
        
     
    
        
            Exhaust System:
        
        
            Exhaust manifold, pipes, muffler, and catalytic converter (if applicable for later models/regions).
        
     
    
    
        
            Maintenance:
        
        
            Scheduled maintenance, fluid changes, filter replacements, lubrication points.
        
     
    
        
            Troubleshooting:
        
        
            Systematic diagnosis of common problems with step-by-step troubleshooting guides.
        
     
    
        
            Repair:
        
        
            Detailed instructions for component removal, disassembly, repair, reassembly, and installation.
        
     
    
        
            Adjustment:
        
        
            Precise adjustment procedures for engine timing, carburetor settings, brakes, clutch, and other critical components.
        
     
    
        
            Diagnostics:
        
        
            Diagnostic information, fault finding charts, and analysis of system behaviors.
        
     
    
    
        
            Depth Of Information:
        
        
            Comprehensive, 'bumper-to-bumper' coverage suitable for professional mechanics and experienced DIY enthusiasts.
        
     
    
        
            Detail Level:
        
        
            Includes special notes, important points, service data, precautions, wear limits, and tightening torques.
        
     
    
    
        
            Illustrations And Diagrams:
        
        
            Detailed illustrations, exploded diagrams, drawings, and photos for most repair procedures.
        
     
    
    
        
            Tool References:
        
        
            Reference to specific service tool numbers and their usage for particular operations.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Typically 5,000 - 7,500 km (3,000 - 4,500 miles) or 6-12 months, check manual for specifics.
        
     
    
        
            Tune Up Interval:
        
        
            Ignition timing, spark plugs, and valve adjustments typically every 10,000 - 15,000 km (6,000 - 9,000 miles).
        
     
    
    
        
            Engine Oil:
        
        
            SAE 15W-40 or 20W-50 API SG/CD or equivalent (check manual for exact viscosity and API rating).
        
     
    
        
            Coolant:
        
        
            Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio typical).
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4 (check manual for precise specification).
        
     
    
        
            Transmission Fluid:
        
        
            GL-4 hypoid gear oil, SAE 75W-90 or 80W-90 (check manual for specifics).
        
     
    
    
        
            Carburetor:
        
        
            Susceptible to gumming and maladjustment; requires regular cleaning and tuning.
        
     
    
        
            Cooling System:
        
        
            Potential for leaks from hoses, radiator, or water pump; thermostat failure can cause overheating.
        
     
    
        
            Electrical System:
        
        
            Wiring loom degradation, grounding issues, and component failure (e.g., voltage regulator) can occur with age.
        
     
    
        
            Suspension Bushings:
        
        
            Rubber wear on suspension and steering components can lead to play and imprecise handling.
        
     
    
        
            Rust:
        
        
            Prone to corrosion, especially in common areas like wheel arches, sills, and door bottoms, due to materials and era of construction.
        
     
 
    
    
    
        
            Manufacturer:
        
        
            AZNP (Automobilové závody národní podnik), later Škoda Auto
        
     
    
    
        
            Predecessor:
        
        
            Skoda 105/120 (Type 742 series introduced in 1976, evolving from earlier rear-engined models like the Skoda 100/110).
        
     
    
        
            Successors:
        
        
            Skoda Favorit (introduced 1987, front-wheel drive).
        
     
    
    
        
            Production Period:
        
        
            1976-1990 (for the Type 742 series, including 120 models)
        
     
    
        
            Manufacturing Location:
        
        
            Mladá Boleslav, Czechoslovakia (now Czech Republic)
        
     
    
        
            Key Market:
        
        
            Eastern Bloc countries, export to Western Europe and other regions.