Engine Mechanical:
Engine assembly, cylinder head, pistons, crankshaft, camshafts, timing, lubrication system, cooling system
Engine Management:
Fuel injection, ignition system, emissions control, engine sensors and actuators, diagnostic trouble codes (DTCs)
Transmission Manual:
Manual transmission disassembly, assembly, inspection, gear selection mechanisms
Transmission Automatic:
Automatic transmission (e.g., 5G-TRONIC, 7G-TRONIC depending on engine) control, hydraulic system, torque converter, transmission fluid service
Drivetrain:
Rear axle, differential, drive shafts, CV joints
Suspension Front:
MacPherson struts, control arms, bushings, ball joints, coil springs, shock absorbers
Suspension Rear:
Multi-link suspension, trailing arms, control arms, coil springs, shock absorbers
Steering:
Power steering system, steering rack, steering column, steering wheel
Brakes Front:
Brake discs, brake calipers, brake pads, hydraulic lines
Brakes Rear:
Brake discs, brake calipers, brake pads, parking brake mechanism
Anti-Lock Braking System:
ABS modulator, wheel speed sensors, ABS control module
Electronic Stability Program:
ESP/ASR control unit, yaw rate sensor, steering angle sensor
Electrical System General:
Battery, charging system, starter motor, fuses, relays, wiring diagrams
Lighting System:
Headlights, taillights, interior lighting, fog lights, bulb replacement
Instrument Cluster:
Gauges, warning indicators, display modules
Audio Visual System:
Radio, CD player, speakers, antenna (specifics may vary by trim)
Comfort Controls:
HVAC system, climate control, seat heating/ventilation (if equipped)
Convertible Roof System:
Hydraulic system, actuators, sensors, control module, mechanism operation and troubleshooting
Body Exterior:
Body panels, bumpers, doors, hood, trunk, mirrors, glass replacement
Body Interior:
Seats, dashboard, door panels, trim, carpeting
Wheels And Tires:
Wheel specifications, tire pressure monitoring system (TPMS), tire and wheel replacement
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement
Troubleshooting:
Diagnostic procedures for various systems, symptom-based troubleshooting guides
Component Repair And Replacement:
Step-by-step instructions for disassembling, repairing, and reassembling virtually all vehicle components
Special Tools:
Identification and usage of specialized tools required for specific repair procedures
Wiring Diagrams:
Detailed electrical schematics for all vehicle systems
Torque Specifications:
Precise torque values for all critical fasteners
Specifications And Tolerances:
Detailed technical data and acceptable wear limits for components
Depth:
Comprehensive (covers basic maintenance to complete engine/transmission rebuilds and advanced diagnostics)
Oil Change Interval:
Typically every 10,000 miles or 12 months, whichever comes first (refer to specific vehicle maintenance schedule)
Major Service Interval:
Consult manual for detailed service A, B, and other interval schedules (e.g., spark plugs, transmission fluid, coolant)
Engine Oil Type:
MB 229.5 or MB 229.51 Approved Synthetic (e.g., Mobil 1 0W-40, Castrol EDGE 5W-40)
Engine Oil Capacity Example Slk230:
Approx. 5.5 liters (5.8 US quarts)
Transmission Fluid Automatic:
MB 236.10 or MB 236.14 Approved ATF (e.g., Pentosin ATF1, Shell ATF 134)
Coolant Type:
Mercedes-Benz approved coolant (e.g., G48 or equivalent blue coolant)
Brake Fluid Type:
DOT 4 (MB 331.0)
Common Issues R171:
Water ingress in ECU box, door seal leaks, convertible top hydraulic cylinder leaks, serpentine belt tensioner failure, rust on wheel arches and sills