Mitsubishi DIAMANTE problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
436 owner complaints analyzed
7 distinct recall campaigns
60,000 mi median reported failure mileage
Scope: 1992 to 2004 model years. Data snapshot: . 252 complaints include usable failure mileage.
Most common problems
Visibility:Defroster/Defogger/Hvac System:Heater Core is the most frequently named component, appearing in 179 of 436 complaints (41.1%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 49 | 11.2% |
| Transmission and shifting | 45 | 10.3% |
| Electrical and battery issues | 17 | 3.9% |
| Steering behavior | 12 | 2.8% |
| Fuel system concerns | 10 | 2.3% |
| Engine operation | 9 | 2.1% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Visibility:Defroster/Defogger/Hvac System:Heater Core | 179 |
| Engine And Engine Cooling:Cooling System | 38 |
| Engine And Engine Cooling | 30 |
| Power Train:Automatic Transmission | 21 |
| Visibility:Defroster/Defogger/Hvac System | 17 |
| Tires | 15 |
| Service Brakes, Hydraulic:Foundation Components:Disc:Rotor | 14 |
| Air Bags:Frontal | 12 |
Visibility:Defroster/Defogger/Hvac System:Heater Core: 179; Engine And Engine Cooling:Cooling System: 38; Engine And Engine Cooling: 30; Power Train:Automatic Transmission: 21; Visibility:Defroster/Defogger/Hvac System: 17; Tires: 15; Service Brakes, Hydraulic:Foundation Components:Disc:Rotor: 14; Air Bags:Frontal: 12
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 22 |
| 25,000 to 49,999 | 56 |
| 50,000 to 74,999 | 95 |
| 75,000 to 99,999 | 48 |
| 100,000 to 149,999 | 23 |
| 150,000 and above | 8 |
Under 25,000: 22; 25,000 to 49,999: 56; 50,000 to 74,999: 95; 75,000 to 99,999: 48; 100,000 to 149,999: 23; 150,000 and above: 8
50,000 to 74,999 miles has the most reports with usable mileage (95). 184 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 1995 | 15 |
| 1996 | 8 |
| 2000 | 25 |
| 2001 | 36 |
| 2002 | 18 |
| 2003 | 20 |
| 2004 | 42 |
| 2005 | 74 |
| 2006 | 47 |
| 2007 | 59 |
| 2008 | 44 |
| 2009 | 16 |
| 2010 | 14 |
| 2011 | 5 |
| 2012 | 2 |
| 2013 | 2 |
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 1 |
| 2019 | 3 |
1995: 15; 1996: 8; 2000: 25; 2001: 36; 2002: 18; 2003: 20; 2004: 42; 2005: 74; 2006: 47; 2007: 59; 2008: 44; 2009: 16; 2010: 14; 2011: 5; 2012: 2; 2013: 2; 2015: 4; 2016: 1; 2017: 1; 2019: 3
Pattern summary
Visibility:Defroster/Defogger/Hvac System:Heater Core leads the component reports. Braking behavior appears in 49 complaint narratives. Transmission and shifting appears in 45 complaint narratives. Electrical and battery issues appears in 17 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 731515 · 2000-09-15 (September 15, 2000)
1. FRONT BRAKE ROTORS WERE REPLACED AT MILEAGE 82500 FOR PULSATION WHEN BRAKING. NEW ROTORS BEGAN TO PULSATE BEFORE 5000 MILES USE. ROTORS WERE TURNED AND TRUED BY DEALER AT 90,100 MILES, BUT BEGAN TO PULSATE AGAIN WITH IN 2000 MILES. 2. ENGINE EXHAUSTS LIGHT GREY SMOKE UPON ACCELERATION AFTER IDLING FOR 2 MINUTES OR MORE. ENGINE OIL CONSUMPTION ESTIMATED AT 1 QT/3000 MILES.
Owner-reported narrative. Look up ODI 731515 at NHTSA ↗
Owner report 964775 · 1995-05-03 (May 3, 1995)
AT 60MPH UPON BRAKING VEHICLE VIBRATES, DUE TO WARPED BRAKE ROTORS. TT
Owner-reported narrative. Look up ODI 964775 at NHTSA ↗
Owner report 504317 · 1996-05-11 (May 11, 1996)
TRANSMISSION OVERHAULED TWICE. *DH
Owner-reported narrative. Look up ODI 504317 at NHTSA ↗
Owner report 753653 · 2001-10-25 (October 25, 2001)
I AM HAVING PROBLEMS WITH MY BRAKING SYSTEM. I HAD MY BRAKES FIXED IN FEBRUARY 2001, IT IS NOW 10/2001 AND I HAVE HAD THE BRAKES REPLACED AGAIN. I AM A SAFE DRIVER AND DO NOT DRIVE DANGEROUSLY OR WRECKLESS. I DO NOT UNDERSTAND HOW WEAR AND TEAR OCCURED SO QUICKLY. MY FRONT END VIBRATES VIGOROUSLY WHILE BREAKING. STOPPING SEVERAL FEET PAST THE POINT WHERE I BREAKED. THE BRAKE PEDAL WENT ALL THE WAY TO THE FLOOR. I HAVE TO STOP WAY AHEAD OF A STOP. ALSO, MY CAR SHAKES AND THE BRAKE PEDAL VIBRATES WHEN I TRY TO STOP. AS FOR THE TRANSMISS…
Owner-reported narrative. Look up ODI 753653 at NHTSA ↗
Owner report 480126 · 1995-01-26 (January 26, 1995)
VEHICLE EXPERIENCES SURGES THROUGHOUT ELECTRICAL SYSTEM WHICH IS MOST EVIDENT IN THE STEREO SYSTEM.
Owner-reported narrative. Look up ODI 480126 at NHTSA ↗
Owner report 503251 · 1996-04-08 (April 8, 1996)
WIRING HARNESS SHORTED OUT, CAUSING FIRE. *DSH
Owner-reported narrative. Look up ODI 503251 at NHTSA ↗
Owner report 890980 · 2001-06-22 (June 22, 2001)
WHEN DRIVING OVER 30 MPH STEERING WHEEL AND VEHICLE SHAKES AND VIBRATES BADLY. ALSO, PULLS TO THE RIGHT. VEHICLE HAS YET TO BE TAKEN TO DEALER. *AK
Owner-reported narrative. Look up ODI 890980 at NHTSA ↗
Owner report 980894 · 1996-03-19 (March 19, 1996)
VEHICLE CUT IN FRONT TO MAKE RIGHT TURN, HIT VEHICLE ON PASSENGER SIDE, DRIVER HIT STEERING WHEEL COLUMN WITH KNEE AND LEG, AIR BAG DID NOT DEPLOY. *AK
Owner-reported narrative. Look up ODI 980894 at NHTSA ↗
Owner report 10124674 · 2005-06-09 (June 9, 2005)
DT: CONSUMER HAD 1997 MITSUBISHI DIAMANTE. CONSUMER TOOK VEHICLE TO DEALER,. VEHICLE HAD A GAS LEAK, DEALER COULD NOT FIND HOLE IN GAS TANK, CONSUMER REPLACED GAS TANK, ABOUT 8 MONTHS AFTER GAS TANK WAS REPLACED THE VEHICLE EXPLODED. *AK
Owner-reported narrative. 78,000 miles reported. Look up ODI 10124674 at NHTSA ↗
Owner report 729639 · 2000-08-31 (August 31, 2000)
THERE IS A VERY DISTINCT GAS SMELL IN AND AROUND THE CAR. IT ALSO LEAKS GAS FROM THE GAS TANK WHEN FULL. I HAVE NOTIFIED MISUBISHI SEVERAL TIMES AND I HAVE BEEN TOLD THAT MY CAR IS FINE.
Owner-reported narrative. Look up ODI 729639 at NHTSA ↗
Owner report 10116491 · 2005-04-06 (April 6, 2005)
AT FIRST MY CAR KEPT STALLING WHILE DRIVING SO I THOUGHT THE FLUID WAS LOW,I GOT TRANSMITIONS TREATMENT AND MORE FLUID,THEN WHEN THAT DIDN'T WORK I GOT TRANSMITION REPLACE.NOW ON TRANS #2 SAME THING BUT NOW MY CAR JUMP OUT OF GEAR WHILE DRIVING DOWN THE STREET WITH MY INFANT SON IN BACK SEAT.*AK
Owner-reported narrative. 135,000 miles reported. Look up ODI 10116491 at NHTSA ↗
Owner report 10006062 · 2003-01-31 (January 31, 2003)
INTERMITTENT WHEN MAKING RIGHT TURNS VEHICLE STALL DEALER HAS BEEN CONTACTED. PLEASE PROVIDE FURTHER INFORMATION. TS
Owner-reported narrative. Look up ODI 10006062 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 1992 | 2 |
| 1993 | 3 |
| 1994 | 2 |
| 1995 | 0 |
| 1997 | 0 |
| 1998 | 1 |
| 1999 | 2 |
| 2000 | 3 |
| 2001 | 2 |
| 2002 | 3 |
| 2003 | 2 |
| 2004 | 1 |
1992: 2; 1993: 3; 1994: 2; 1995: 0; 1997: 0; 1998: 1; 1999: 2; 2000: 3; 2001: 2; 2002: 3; 2003: 2; 2004: 1