Engine:
Comprehensive coverage including diagnostics, repair, overhaul, timing, fuel injection, ignition, cooling, lubrication.
Transmission:
Automatic transmission (e.g., 722.6 or similar) diagnostics, repair, fluid service, electronic controls.
Drivetrain:
Front and rear axle, differential, driveshafts, CV joints, AWD (if applicable).
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, bushings, alignment procedures.
Steering:
Power steering system, steering rack, tie rods, steering column, electronic power steering (if equipped).
Brakes:
Hydraulic system, ABS, ESP, brake discs, pads, calipers, lines, bleeding procedures, parking brake.
Electrical System:
Complete wiring diagrams, battery, alternator, starter, fuses, relays, lighting systems, body control module (BCM).
Comfort Systems:
HVAC system, climate control, power windows, seats, mirrors, convertible top mechanism (for A209).
Body And Chassis:
Body panels, doors, hood, trunk, bumpers, glass, frame, corrosion protection, convertible top structure.
Diagnostic Troubleshooting:
Systematic diagnostic procedures, fault code interpretation, symptom-based troubleshooting guides.
Scheduled Maintenance:
Detailed descriptions of all routine maintenance services as per manufacturer recommendations.
Engine Repair:
Engine assembly/disassembly, valve train, piston rings, bearings, crankshaft, cylinder head procedures.
Transmission Service:
Transmission fluid and filter change, internal component replacement, torque converter procedures.
Brake System Service:
Brake pad/disc replacement, caliper overhaul, hydraulic line replacement, bleeding.
Suspension And Steering Repair:
Replacement of ball joints, control arms, tie rod ends, steering rack, power steering pump.
Electrical Component Replacement:
Alternator, starter, battery, sensors, actuators, control modules (ECU, BCM, etc.).
Bodywork And Trim:
Removal and installation of body panels, interior trim, seals, glass.
Convertible Top Service:
Hydraulic system, motors, latches, seals, and fabric maintenance for A209.
Troubleshooting Guides:
Step-by-step diagnostics for common and complex issues across all vehicle systems.
Depth:
Comprehensive factory-level detail for all repair and maintenance procedures.
Diagnostic Capabilities:
Includes specifications and procedures for using diagnostic scan tools (e.g., STAR Diagnosis) for fault code reading, live data, and actuations.
Rebuild Procedures:
Detailed instructions for complete engine and transmission rebuilds, including specifications for clearances and tolerances.
Torque Specifications:
Exact torque values for all critical fasteners throughout the vehicle.
Electrical Schematics:
High-quality, legible wiring diagrams for all electrical systems, color-coded and component-identified.
Oil Change Interval:
Typically every 10,000 miles or 12 months, whichever comes first, via Flexible Service System (ASSYST).
Major Service Interval:
Service B (ASSYST) typically around 20,000 miles or 24 months, includes more comprehensive checks and fluid changes.
Engine Oil Spec Example:
Mobil 1 0W-40 Synthetic (MB Spec 229.5) or equivalent.
Coolant Spec:
MB Spec 325.0 / 326.0 (typically a G48-based blue-green coolant).
Brake Fluid Spec:
DOT 4 Plus (MB Spec 331.0).
Oil Cooler Seals:
Leaking oil cooler seals (M272/M273 engines) can lead to oil leaks onto the alternator.
Intake Manifold Flaps:
Plastic intake manifold tumble flaps can break and fall into the cylinders (M272 engine).
Balance Shaft Gear:
Worn balance shaft gear in M272 engines can cause rough idling and CEL.
Transmission Conductor Plate:
Failure of the transmission conductor plate (722.6) can lead to shifting problems and error codes.
Convertible Top Hydraulics:
Potential leaks or pump failures in the convertible top hydraulic system (A209).
