Engine:
2.1L Inline-4 (M166.990)
Engine Management:
ME 3.7/2.8 (Engine Control Module - ECM diagnostics, sensors, actuators, fuel injection, ignition timing)
Transmission:
5-speed Automatic (716.640 / 716.670 variants)
Drivetrain:
Front-Wheel Drive (FWD)
Suspension:
Front: MacPherson strut with lower control arms; Rear: Torsion beam axle with trailing arms
Steering:
Hydraulic power steering system
Brakes:
Front: Ventilated discs; Rear: Solid discs; ABS (Anti-lock Braking System), BAS (Brake Assist), ESP (Electronic Stability Program)
Electrical System:
12V system, battery, alternator, starter, lighting, fuse box diagrams, wiring diagrams
Body And Chassis:
Body construction, structural components, doors, windows, bumpers, interior trim, underbody protection
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system, refrigerant R134a, climate control units
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel lines, evaporative emission control (EVAP) system
Exhaust System:
Exhaust manifold, catalytic converter, mufflers, oxygen sensors
Cooling System:
Radiator, coolant hoses, water pump, thermostat, expansion tank
Interior Features:
Seats, dashboard, door panels, airbags, seatbelts, interior lighting
Exterior Features:
Body panels, mirrors, door handles, sunroof (if applicable), lighting units
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks, lubrication
Troubleshooting:
Diagnostic fault codes (DTCs), symptom-based troubleshooting guides, common issues and solutions
Engine Repair:
Engine overhaul, cylinder head removal/installation, piston and connecting rod service, crankshaft service
Transmission Service:
Transmission fluid and filter change, valve body service, torque converter replacement, transmission overhaul
Brake System Service:
Brake pad and rotor replacement, brake caliper service, brake fluid flush and bleed, ABS component replacement
Suspension And Steering Repair:
Strut replacement, control arm replacement, ball joint service, power steering pump replacement, steering rack overhaul
Electrical Diagnostics:
Wiring harness repair, sensor testing, actuator testing, module programming (basic)
HVAC Repair:
Component replacement (compressor, condenser, evaporator), refrigerant system leak testing and evacuation, climate control module diagnostics
Body And Trim Repair:
Panel replacement, door adjustment, window regulator repair, interior trim component installation/removal
Specifications And Tolerances:
Torque specifications, measurement tolerances, fluid capacities, wear limits
Depth Level:
Comprehensive (from routine maintenance to major component overhauls and diagnostics)
Diagnostic Capabilities:
Detailed diagnostic procedures for all major systems, including common fault codes and their likely causes.
Component Overhaul:
Step-by-step instructions for complete disassembly, inspection, repair, and reassembly of major components.
Wiring Diagrams:
Detailed electrical wiring diagrams for all vehicle systems, essential for electrical troubleshooting.
Oil Change Interval:
Typically every 15,000 km (9,300 miles) or 12 months, whichever comes first (refer to specific model year for exact intervals).
Air Filter Replacement:
Every 30,000 km (18,600 miles) or as needed based on driving conditions.
Spark Plug Replacement:
Every 60,000 km (37,200 miles) for standard plugs; longer for iridium/platinum plugs (check manual).
Brake Fluid Flush:
Every 24 months (2 years).
Transmission Fluid Service:
Every 60,000 km (37,200 miles) or as recommended by Mercedes-Benz.
Engine Oil Specification:
MB 229.1 / 229.3 (e.g., SAE 0W-40, 5W-40, 5W-30)
Engine Oil Capacity:
Approx. 5.0 Liters (with filter change)
Coolant Type:
Mercedes-Benz Coolant Formula 325.0 / 326.0 (Antifreeze/Coolant, blue color)
Power Steering Fluid:
MB 343.0 or Pentosin CHF 11 S (Green)
ABS Sensor Failure:
Premature failure of ABS wheel speed sensors can trigger ABS/ESP warning lights.
Egr Valve Clogging:
Exhaust Gas Recirculation (EGR) valve can become clogged with carbon buildup, affecting engine performance and causing rough idling.
Window Regulator Failure:
Mechanical failure of window regulators, especially in older units, leading to windows not operating.
Mass Air Flow Sensor Issues:
MAF sensor can become dirty or fail, leading to engine performance issues, check engine lights, and poor fuel economy.
Transient Shudder Automatic Transmission:
Some early models experienced torque converter shudder under light load. Software updates and fluid changes can sometimes mitigate this.
