2003 Mitsubishi Diamante Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Mitsubishi Diamante

2003 Mitsubishi Diamante Problems

A coolant leak may develop from the heater core, requiring replacement of the heater core.

The automatic transmission may fail prematurely requiring overhaul or replacement of the transmission.

A brake pedal pulsation may be noted on brake apply. This is commonly caused by warping of the front brake rotors. Our technicians remind us that re-machining (turning) the rotors can correct this issue but the repair may last only a short time as the thinner rotors would be even more prone to warping. Replacement of faulty rotors with high quality parts is often the best option in these situations.

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2003 Mitsubishi Diamante Questions

If I turn car off and restart sometimes it starts charging and maintains 12 volts and other times it wont. Battery light and brake light on instrument panel come on when not charging and nothing shows uo on diagnostics check.

No warning, just started and is now continuous... Changed tranny fluid and it's still doing the same thing.

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2003 Mitsubishi Diamante Recalls

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.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.

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2003 Mitsubishi Diamante Reviews

2003 Mitsubishi Diamante' LS -- Very nice This has been my favorite car that ive owned so far. The luxury aspect of it reeled me in. The heated leather seating smooth ride. The fact that the memory buttons on the driver door always adjusted to my comfortable seating position AS i was getting! yaaa THATS NICE

I bought the car with 20,000 miles on it and the abs light came on in the first storm. I didn't have the pump replaced, too pricey. I now have 108,000 miles on it, have always had it serviced, but the valve cover gaskets are leaking now. I have had some brake jobs done and things like that but I think they did a lousy job, they have always squealed since. I don't like how low the front end is, ...

I just purchased this car from a local dealer. It has 66k miles and so far everything seems to be okay. I did have the "service engine soon" light come on after a brisk breeze down a nicely paved rd (about 95 for less than a quarter mile). Culprit=O2 sensor. But the light has since gone off and not come back on. I will be tuning it up soon because it idles a little rough for my taste. slightly ...

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