Engine Mechanical:
Engine assembly, cylinder head, block, pistons, crankshaft, camshafts, valve train, timing
Engine Management:
Fuel injection, ignition, emissions control, ECU diagnostics, sensors
Transmission:
Automatic Transmission (e.g., 722.6) - overhaul, diagnostics, fluid service
Drivetrain:
Driveshafts, axles, differential
Suspension:
Front and rear suspension, struts, shocks, control arms, bushings
Steering:
Power steering system, steering rack, steering column
Brakes:
Brake system, ABS, ESP, brake fluid, pads, rotors, calipers
Electrical System:
Battery, charging system, starter, alternator, wiring diagrams, fuses, relays
Lighting:
Headlights, taillights, interior lighting, bulb replacement
HVAC:
Heating, Ventilation, Air Conditioning, refrigerant service, climate control
Body And Interior:
Body panels, doors, windows, seats, trim, interior components
Infotainment And Electronics:
Audio system, navigation, instrument cluster, electronic modules
Safety Systems:
Airbags, seatbelts, SRS module
Maintenance:
Oil changes, filter replacements, fluid checks, spark plug replacement
Troubleshooting:
Diagnostic procedures, symptom-based troubleshooting guides, fault code explanations
Repair:
Component replacement, system repairs, overhaul procedures
Diagnostics:
Use of diagnostic tools (e.g., STAR Diagnosis), reading and clearing DTCs
Specifications Data:
Torque specifications, clearances, fluid capacities, electrical values
Depth:
Full factory-level repair and diagnostic information
Configuration:
3.2L SOHC 18-valve V6
Horsepower:
215 hp @ 5750 rpm
Torque:
229 lb-ft @ 3000-4800 rpm
Injection Type:
Sequential Multi-Port Fuel Injection (MPI)
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
Coolant Type:
Mercedes-Benz approved coolant (e.g., G05 or equivalent, blue/green)
Oil Type Spec:
MB 229.5 (e.g., Mobil 1 0W-40, Castrol Syntec 0W-40)
Oil Capacity:
8.5 US quarts (8.0 liters) with filter change
Type:
5-Speed Automatic (722.6)
Type:
None (RWD standard, AWD - 4MATIC optional in some markets/trims)
Control Modes:
Comfort (C) and Sport (S) modes
Fluid Type:
MB 236.10 / ATF 3353 (e.g., Pentosin ATF1, Mobil ATF 134)
Capacity:
Approx. 7.5-8.5 US quarts (7.0-8.0 liters) for dry fill, check dipstick for level
NHTSA Front Impact:
5-Star (Driver and Passenger)
Stability Control:
Electronic Stability Program (ESP)
Traction Control:
Traction Control System (TCS)
ABS:
Anti-lock Braking System (ABS)
Airbags:
Frontal airbags, side airbags, optional side curtain airbags
Seatbelts:
Pretensioning front seatbelts with force limiters
Head Unit Options:
COMAND 2.0 (optional navigation and CD player)
Audio System:
Standard AM/FM/CD player, optional Bose premium sound system
Parking Assistance:
Optional Parktronic parking sensors
Telematics:
Optional TeleAid emergency calling system
Cruise Control:
Standard cruise control with speed limiter
Climate Control:
Standard manual A/C, optional THERMATIC (automatic climate control)
Oil Change Interval:
Variable (typically 10,000 miles or 1 year, based on driving conditions via 'Service A' / 'Service B' system)
Transmission Fluid Service:
Recommended every 40,000 - 60,000 miles (check manual for specific recommendations, often considered 'lifetime' but fluid replacement is advised for longevity)
Spark Plug Replacement:
Typically around 100,000 miles (check specific OE recommendations)
Brake Fluid Type:
DOT 4 (MB Spec 332.0)
Power Steering Fluid:
MB Spec 236.3 (e.g., Pentosin CHF 11S or equivalent)
Evaporative Emissions System:
Common fault: EVAP purge valve (N80) failure, leading to Check Engine Light.
Ignition Coils And Plugs:
Potential misfires due to failing ignition coils or worn spark plugs, particularly in the M112 engine.
Cooling System:
Leaks from plastic coolant reservoir, water pump, or hoses are not uncommon as the vehicle ages.
Window Regulators:
Plastic components in window regulator mechanisms can break, causing windows to fall into doors.
Mass Air Flow Sensor:
MAF sensor can become contaminated, leading to rough idle and poor performance.
