The 2003 Mitsubishi Diamante is a midsize car that came with a 3.5L 6-cyl engine. At 23 years old, many are reaching the point where repairs cost more than the car is worth. Running or not, we'll make you an offer and tow it away for free.
| Body style | Midsize Cars |
|---|---|
| Engines | 3.5L 6-cyl |
| Transmissions | Automatic 4-spd |
| Drive | Front-Wheel Drive |
| Fuel | Premium Gasoline |
| Fuel economy | 16 city / 23 highway / 18 combined MPG |
| EPA annual fuel cost | $4,550 a year (EPA estimate at current fuel prices, 15,000 miles) |
| Tailpipe CO₂ | 494 grams per mile |
| Versions tested by EPA | 1 configuration |
| Age | 23 years |
Specs, fuel cost and emissions from the EPA's fueleconomy.gov data. Your car's exact equipment may differ.
NHTSA lists 2 safety recalls covering the 2003 Mitsubishi Diamante. Open recalls don't stop you from selling or junking the car, but check your VIN at nhtsa.gov/recalls to see which apply to yours.
Certain passenger vehicles fail to conform to the requirements of federal motor vehicle safety standard no. 208, 'occupant crash protection.' the bilingual english/spanish removable air bag warning labels affixed to the dash and to the sunvisor do not meet the size requirements of the standard.
Risk: This does not meet the requirements of the standard.
Certain sport utility and passenger vehicles fail to comply with federal motor vehicle safety standard no. 225, "child restraint anchorage systems." the owner's manual does not contain a step-by-step description for headrest adjustment when installing a child restraint system (crs) tether strap.
Risk: If the tether strap is improperly installed to the tether anchor, the child safety seat may not be sufficient restrained. In the event of a crash, the child could be injured.
Owners have filed 56 complaints about the 2003 Mitsubishi Diamante with NHTSA. 1 report involved a crash. Owners reported 1 injury.
Complaints are reports from owners and aren't verified by NHTSA. One complaint can list several components. Mileage is the median odometer reading owners reported for that component.
Manufacturers have filed 27 technical service bulletins and communications with NHTSA covering the 2003 Mitsubishi Diamante. These are repair instructions for known issues, not recalls.
This is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has launched the 3rd quarterly technician quiz for 2023.
This Technical Service Bulletin reviews the regulations that require a label showing the reduction in load carrying capacity be affixed to vehicles when the total net wei
This Technical Service Bulletin provides instructions and material safety data sheets for removal of rap-film adhesive residue.
This is a Dealer Letter sent to dealers informing that Mitsubishi Technical Training has launched the 2nd quarterly technician quiz for 2023.
Source: NHTSA manufacturer communications (technical service bulletins).
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It depends on its condition, whether major parts like the engine, transmission and catalytic converter are still there, and current scrap and parts prices where you live. Its parts make up much of its value. Enter your ZIP code above for a free offer on your specific car.
Yes. We buy 2003 Diamantes that don't start, were in an accident, failed inspection or have a blown engine or transmission. Towing is always free.
Yes. Open recalls don't prevent a junk sale. NHTSA lists 2 recalls for the 2003 Mitsubishi Diamante; you can check whether any are still open on yours with the VIN lookup at nhtsa.gov/recalls.
Usually the title and a photo ID. Rules differ by state, including what to do with your plates and whether to file a notice of sale. Check our state-by-state car title guides for the official forms.
Data retrieved October 2026.
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