2000 Mitsubishi Diamante Engine cooling Problems
- Complaints
- 7about this part
- Share
- 14%of 51 total for the year
- Median mileage
- 57,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the engine cooling of the 2000 Mitsubishi Diamante, 14% of the 51 complaints for this model year. Where a mileage was given, the median is 57,000 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My wife and I noticed antifreeze odor coming in through vents. When our windows would fog, our defroster wouldn't work. Then our passenger side floor was soaked with antifreeze. We took the car to the dealer, our heater core was leaking. Cost was $1300 to repair. Mitsubishi should be held responsible!! Too many complaints.”
NHTSA complaint #10243955, filed 2008-09, 86,000 miles“My gas tank does not vent properly - the car has a detination problem and has exploded on four occations with a force that rocks the car. I don't want to get in it anymore, nor does my family. It has been in the shop for 25 days.”
NHTSA complaint #747471, filed 2001-06“The fumes of antifreeze fogged up the windows severely, reducing visibility of the driver. It was raining one night and my windows all of a sudden got foggy. I turned on the defroster, which made my windows even foggier. The poor visibility caused me to run off the road into the grassy median. I was out of town when this occurred. In doing research on this problem I found that it was common all diamantes (92 -2001). In many cases, the driver is not aware that this is a severe problem. The antifreeze will started leaking on the passenger?s side area. …”
NHTSA complaint #10116262, filed 2005-04“After being stopped a couple of minutes because of a passing train, when proceeding, the car would not move more than, probably, 5 MPH. Noticed a smell coming in, like oil burning. Didn't see no smoke coming out of hood. Check engine light came on. Parked car and got out to see black smoke coming from behind the car. Turned off engine and tried to turn on to move car, it wouldn't turn on again. Had car towed to dealer. It happened right before entering freeway, thank god.”
NHTSA complaint #757807, filed 2002-02Related service bulletins
- 10170074Aug 28, 2015This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10170071Jul 22, 2015This is a service newsletter (Tech Talk) that was sent out to dealers.
- 10170086Nov 1, 2012This is a service newsletter (Tech Talk) that was sent out to dealers.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 17 | 30% |
| 2002 | 38 | 31% |
| 2001 | 14 | 18% |
| 2000 | 7 | 14% |
| 1999 | 3 | 13% |
| 1998 | 1 | 4% |
| 1997 | 4 | 12% |
| 1995 | 2 | 17% |
| 1994 | 2 | 7% |
| 1993 | 3 | 10% |
| 1992 | 11 | 26% |
Other parts of the 2000 Mitsubishi Diamante
27 complaintsBrakes
4 complaintsFuel system
3 complaintsTransmission and drivetrain
3 complaintsVehicle speed control
3 complaintsAir bags
2 complaintsElectrical system
2 complaintsOther or unknown
2 complaintsLatches, locks and linkages
1 complaintsSteering
1 complaintsBody and structure
1 complaintsSuspension
1 complaints
← All problems reported for the 2000 Mitsubishi Diamante
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology