The Acura 2003 MDX Service Manual provides comprehensive technical information for maintaining and repairing the 2003 Acura MDX luxury SUV. This manual covers the 3.5L V6 VTEC engine, 5-speed automatic transmission, VTM-4 all-wheel drive system, suspension, brakes, electrical systems, HVAC, and body components. Below are key sections for maintenance procedures, specifications, troubleshooting, and repair instructions.
Key technical data for the 2003 Acura MDX including dimensions, capacities, and performance specifications.
| Specification | Description |
|---|---|
| Engine Type | 3.5L SOHC V6 VTEC |
| Horsepower | 260 hp @ 5,800 rpm |
| Torque | 250 lb-ft @ 3,500 rpm |
| Transmission | 5-speed automatic with SportShift |
| Drivetrain | VTM-4 all-wheel drive |
| Fuel Capacity | 19.2 gallons |
| Curb Weight | 4,464 lbs |
| Towing Capacity | 4,500 lbs |
| Wheelbase | 106.3 inches |
| Overall Length | 188.5 inches |
Recommended service intervals and maintenance procedures for optimal vehicle performance.
WARNING! Always use Acura-approved fluids and parts. Follow torque specifications precisely.
Detailed service procedures for the 3.5L V6 VTEC engine and related components.
Service procedures for the 5-speed automatic transmission and VTM-4 all-wheel drive system.
Transmission Service: Fluid change, filter replacement, and shift solenoid testing.
VTM-4 System: Transfer case service, rear differential maintenance, and drive shaft inspection.
Transmission: Fluid capacity 3.1 quarts (drain and refill), filter replacement every 30,000 miles. Drivetrain: Front and rear differential fluid change every 30,000 miles, transfer case fluid service.
Maintenance and repair procedures for front and rear suspension components and power steering system.
Tip: Always replace suspension components in pairs and perform wheel alignment after service.
Complete brake system service including disc brakes, ABS, and parking brake.
WARNING! Always test brake system operation before road testing. Use DOT 3 or DOT 4 brake fluid.
Diagnosis and repair procedures for charging, starting, lighting, and accessory systems.
Battery: Testing, replacement, and maintenance procedures.
Alternator: Output testing and replacement steps.
Starting System: Starter motor testing and solenoid service. Lighting: Headlight adjustment, bulb replacement, and circuit diagnosis. Accessories: Power windows, locks, and mirror systems.
Heating, ventilation, and air conditioning system service and repair.
AC System: Refrigerant recovery, compressor replacement, and evacuation procedures. Heater Core: Removal and installation steps. Climate Control: Automatic temperature control diagnosis and servo motor replacement.
Body panel, glass, trim, and interior component service procedures.
CAUTION! Use proper trim removal tools to avoid damage to components.
Using diagnostic tools and interpreting trouble codes for various systems.
OBD-II System: Accessing and clearing diagnostic trouble codes. System-specific Tests: Engine, transmission, ABS, and SRS system diagnostics. Scan Tool Operation: Connecting and using Acura/Honda diagnostic equipment.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Engine won't start | Battery, starter, fuel system | Check battery voltage, test starter, verify fuel pressure |
| Transmission slipping | Low fluid, worn clutches | Check fluid level and condition, test line pressure |
| Brake vibration | Warped rotors | Resurface or replace brake rotors |
| ABS light on | Wheel sensor, hydraulic unit | Scan for codes, test wheel sensors, check wiring |
| Overheating | Coolant leak, thermostat | Pressure test system, replace thermostat, check fans |
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Parts Information: Use genuine Acura parts for optimal performance and warranty