Engine Mechanical:
Engine assembly, cylinder head, valve train, pistons, crankshaft, connecting rods, oil pump, timing system, lubrication
Engine Management:
Fuel injection, ignition system, electronic control unit (ECU), emissions control, sensors, actuators
Transmission:
5-speed automatic transmission (722.6), torque converter, transmission control module (TCM), fluid service, internal components
Drivetrain:
Driveshafts, differential, rear axle assembly
Suspension:
Active Body Control (ABC) system, springs, shock absorbers, control arms, bushings, wheel bearings
Steering:
Power steering system, steering gear, steering column, power steering fluid
Brakes:
Anti-lock Braking System (ABS), Electronic Stability Program (ESP), brake calipers, rotors, pads, brake lines, hydraulic unit, parking brake
Electrical System Power:
Battery, alternator, starter, charging system, power distribution
Electrical System Lighting:
Headlights, taillights, interior lighting, fog lamps, wiring diagrams
Comfort Systems:
Climate control (automatic), heated seats, ventilation, convertible top operation (Vario-roof)
Infotainment Audio:
COMAND system (optional), radio, CD player, speaker system, antenna
Body Exterior:
Bumpers, fenders, hood, trunk, doors, mirrors, convertible roof mechanism
Body Interior:
Seats, dashboard, center console, door panels, carpeting, airbags
Safety Systems:
Airbag system, seat belt pre-tensioners, crumple zones
Engine Repair:
Engine overhaul, head gasket replacement, timing chain service, piston and rod replacement
Transmission Repair:
Transmission fluid and filter change, valve body service, mechatronic unit repair, torque converter replacement
Suspension Adjustment:
ABC system calibration, shock absorber replacement, strut replacement, alignment specifications
Brake Maintenance:
Brake pad and rotor replacement, brake fluid flush, caliper service, bleeding procedures
Electrical Diagnostics:
Wiring harness repair, sensor testing, component diagnosis, troubleshooting common electrical faults
Convertible Top Service:
Hydraulic system service, seal replacement, mechanism adjustment, troubleshooting roof malfunctions
Scheduled Maintenance:
Oil changes, filter replacements, spark plug replacement, belt inspection/replacement, fluid checks and changes
Diagnostic Troubleshooting:
Step-by-step diagnostic guides for common and complex issues, fault code interpretation
Body Panel Replacement:
Door removal/installation, fender replacement, hood adjustment
Air Conditioning Service:
Refrigerant recharge, component replacement, leak detection
Depth:
Comprehensive factory-level repair and diagnostic information, suitable for professional technicians and advanced DIY enthusiasts.
Oil Change:
Every 10,000 miles or 12 months, whichever comes first (using synthetic oil).
Transmission Fluid:
Every 40,000 - 60,000 miles (refer to specific service manual for exact interval).
Spark Plugs:
Every 100,000 miles (platinum or iridium plugs).
Air Filter:
Every 30,000 miles or as needed.
Engine Oil:
SAE 0W-40 or 5W-40 Synthetic (MB-Approval 229.5)
Coolant:
Antifreeze/coolant (e.g., G-05 or equivalent), mixed 50/50 with distilled water.
Brake Fluid:
DOT 4 Plus (or MB-Approval 331.0)
Power Steering Fluid:
MB Specification 343.0 (Pentosin CHF 11S or equivalent)
Common Problems:
Active Body Control (ABC) hydraulic leaks and pump failures, transmission conductor plate issues, ignition coil failure, mass airflow sensor (MAF) problems, convertible top hydraulic cylinder leaks, window regulator issues, serpentine belt tensioner failure.