ML320 (2003) - Car Mercedes-Benz - Free user manual and instructions
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| Product Type | Full-size luxury SUV |
| Manufacturer | Mercedes-Benz |
| Model | ML320 (2003) |
| Year | 2003 |
| Body Style | 5-door SUV |
| Seating Capacity | 5 passengers |
| Engine | 3.2L V6 gasoline, 218 hp, 229 lb-ft torque |
| Transmission | 5-speed automatic with Touch Shift |
| Drivetrain | All-wheel drive (4MATIC) |
| Fuel Type | Premium unleaded gasoline (91 octane recommended) |
| Fuel Tank Capacity | 22.5 gallons (85 liters) |
| Dimensions (L x W x H) | 190.5 in x 73.8 in x 71.7 in (4839 mm x 1875 mm x 1820 mm) |
| Wheelbase | 111.0 in (2820 mm) |
| Curb Weight | 4,585 lbs (2,080 kg) |
| Cargo Volume (rear seats up/down) | 42.5 ft³ / 85.0 ft³ |
| Main Functions | Driving, towing (up to 5,000 lbs), off-road capability, comfort, safety |
| Safety Features | Front and side airbags, ABS, Electronic Stability Program (ESP), Traction Control, brake assist |
| Maintenance | Oil change every 10,000 miles; air filter, cabin filter, spark plugs, and fluid checks per service manual |
| Spare Parts & Reparability | Parts available through Mercedes-Benz dealers and aftermarket; VIN-dependent for exact compatibility |
| General Information | VIN visible on driver-side windshield and door jamb; recommended oil: 5W-30 or 0W-40 synthetic |
Frequently Asked Questions - ML320 (2003) Mercedes-Benz
What is the fuel economy of the 2003 ML320?
The EPA estimated fuel economy is 15 mpg city and 19 mpg highway for the 2003 ML320 with the 3.2L V6 and automatic transmission.
What is the towing capacity of the ML320?
The 2003 ML320 can tow up to 5,000 pounds when properly equipped with a trailer hitch and load-leveling system.
What type of engine oil is recommended for the ML320?
Mercedes-Benz recommends using fully synthetic 5W-30 or 0W-40 oil that meets MB 229.5 specification. Always check the oil level with the dipstick.
How often should I change the transmission fluid?
Mercedes-Benz suggests a transmission fluid and filter change every 40,000 to 60,000 miles, or according to the service indicator.
What is the correct tire pressure for the ML320?
Recommended tire pressure for the 2003 ML320 is typically 32 psi for the front and 38 psi for the rear, but always verify using the sticker on the driver's door pillar.
How do I reset the service indicator light?
To reset the service indicator, turn the ignition key to position 1, press the trip reset button twice, and then turn the key to position 2. Wait for the display to flash, then press the reset button again.
Why is my ML320 check engine light on?
Common causes include a loose gas cap, oxygen sensor failure, or a faulty mass air flow sensor. Have the code read with an OBD-II scanner to pinpoint the issue.
What is the lifespan of the ML320's engine?
The 3.2L V6 engine can last over 200,000 miles with regular maintenance including oil changes, spark plug replacements, and timing belt service (if applicable).
Does the 2003 ML320 require premium fuel?
Mercedes-Benz recommends premium unleaded gasoline with an octane rating of 91 or higher for optimal performance and fuel economy.
What are common issues with the ML320?
Common issues include a failing window regulator, malfunctioning central locking system, and worn suspension components like bushings and struts. Regular inspection can prevent major repairs.
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