IllustrationHEATER CORE FAILED, CAUSING ANTI FREEZE TO LEAK INTO PASSENGER'S COMPARTMENT. DEALER HAS BEEN NOTIFIED.*AK THE ANTIFREEZE HAD ALSO STARTED LEAKING ON COMPUTER COMPONENTS UNDER THE CONSOLE. NEW HEATER CORE WAS ON BACK ORDER. *YH
1998 Mitsubishi Diamante
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 1998 Mitsubishi Diamante do not stand out strongly from the model-year median of 31.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Diamante years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 13 of 27 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Visibility. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Vehicle Speed Control. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
1 crash reports0 fire reports2 injury reports
Visibility complaints
15 reportsHEATER CORE FAILED TO WORK, AND FUMES ENTERED PASSENGER COMPARTMENT.*AK
THE HEATER CORE FAILED CAUSING ANTIFREEZE TO LEAK INSIDE THE VEHICLE ALONG WITH AN ODOR COMING OUT OF THE VENTS, THE VEHICLE WAS TAKEN TO THE DEALER FOR REPAIR WHERE THEY SAID THEY REPLACED THE HEATER CORE AND ADDED COOLANT, A FEW MONTHS LATER THE CONSUMER NOTICED THAT THE STEREO WAS NOT WORKING AND WHEN SHE REMOVED IT SHE FOUN…
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THE HEATER CORE FAILED CAUSING ANTIFREEZE TO LEAK INSIDE THE VEHICLE ALONG WITH AN ODOR COMING OUT OF THE VENTS, THE VEHICLE WAS TAKEN TO THE DEALER FOR REPAIR WHERE THEY SAID THEY REPLACED THE HEATER CORE AND ADDED COOLANT, A FEW MONTHS LATER THE CONSUMER NOTICED THAT THE STEREO WAS NOT WORKING AND WHEN SHE REMOVED IT SHE FOUND THAT THE HEATER CORE BOX WAS CRACKED, HAD DUCT TAPE AROUND IT AND ANTIFREEZE WAS LEAKING AGAIN. NLM
HEATER CORE FAILED TO WORK FOR SIX WEEKS, FUMES WENT THROUGH THE VENTS AND ANTI FREEZE LEAKED INTO THE PASSENGER'S SIDE CARPET AND PADDING, VEHICLE TAKEN TO DEALERSHIP ON 12/12/00, VEHICLE RETURNED TO DEALERSHIP ON 1/3/01 FOR THE SAME PROBLEM, ON 1/10/00 OWNER WENT INTO RESPIRATORY ARREST, ON 2/3/00 OWNER FOUND HEATER CORE DUCK …
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HEATER CORE FAILED TO WORK FOR SIX WEEKS, FUMES WENT THROUGH THE VENTS AND ANTI FREEZE LEAKED INTO THE PASSENGER'S SIDE CARPET AND PADDING, VEHICLE TAKEN TO DEALERSHIP ON 12/12/00, VEHICLE RETURNED TO DEALERSHIP ON 1/3/01 FOR THE SAME PROBLEM, ON 1/10/00 OWNER WENT INTO RESPIRATORY ARREST, ON 2/3/00 OWNER FOUND HEATER CORE DUCK TAPED, HEATER CORE BOX CRACKED, PUNGENT ODOR STILL EXISTS WHICH HAZARDOUS TO HEALTH. CJ
WINDSHIELD WIPER BLADES DON'T CONTACT THE WINDSHIELD IN COLD WEATHER DUE TO A STIFF HINGE NEAR THE BASE OF THE WIPER ARM. CAN BE TEMPORARILY CORRECTED BY USING A LIGHT, PENETRATING LUBRICANT, BUT PROBLEM RETURNS AFTER CAR WASH.
Official recalls
104V428000 · Equipment:other:labels
Sep 1, 2004
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.
Consequence & remedy
Consequence: THIS DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.
Remedy: MITSUBISHI CARIBBEAN WILL MAIL A CUSTOMER NOTIFICATION LETTER CONTAINING A WRITTEN DESCRIPTION AND A GRAPHIC OF THE BI-LINGUAL DASHBOARD AIR BAG WARNING LABEL. IN ADDITION, ALL CURRENT 2000-2004 NATIVA OWNERS WILL ALSO RECEIVE REPLACEMENT AIR BAG ALERT LABELS FOR THE SUN VISORS. THIS RECALL IS EXPECTED TO BEGIN DURING MARCH OR APRIL 2005. THE NOTIFICATION TO THE NATIVA OWNERS IS EXPECTED TO BEGIN DURING APRIL OR MAY 2005. OWNERS SHOULD CONTACT MITSUBISHI CARIBBEAN AT 1-787-251-8715.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.