The 1999 Mitsubishi Diamante is a midsize car that came with a 3.5L 6-cyl engine. At 27 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 / 22 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 | 27 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 1999 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.
Vehicle description: passenger vehicles. The head of the screw that holds the retaining clip for the parking brake shoe can become brittle and break off.
Risk: If the screw head breaks off, the parking brake shoe retainer clip can become dislodged and could result in the parking brake dragging and/or failure of the parking brake to properly hold. Seizure of the parking brake shoe, especially on we
Owners have filed 23 complaints about the 1999 Mitsubishi Diamante with NHTSA.
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 45 technical service bulletins and communications with NHTSA covering the 1999 Mitsubishi Diamante. These are repair instructions for known issues, not recalls.
This Technical Service Bulletin was sent to dealers to explain the difference between normal dew condensation, which is a natural phenomenon, and water penetration caused
This is a service newsletter (Tech Talk) that was sent out to dealers.
This is a Technical Service Bulletin sent to dealers. This bulletin supersedes TSB-18-00-003, issued April, 2018, to add updated information for Carrying Capacity Reduced
This is a service newsletter (Tech Talk) that was sent out to dealers.
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 1999 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 1999 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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