Vehicle Data Hub

2003 Mitsubishi Diamante air conditioning & heating problems

25 complaints about air conditioning & heating have been filed for the 2003 Mitsubishi Diamante, which is 33% of all its NHTSA complaints. It is the 2nd most reported problem area for this model year.

At a glance

Complaints
25 33% of this year's complaints
Typical mileage
60,000 miles 19 complaints with mileage
Crashes and fires
0 and 0
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

When air conditioning & heating problems show up

Air conditioning & heating complaints by mileage, 2003 Mitsubishi Diamante Complaints by odometer reading in 20,000-mile steps. The median is about 60,000 miles. 0k to 20k miles: 1 complaints 20k to 40k miles: 5 complaints 40k to 60k miles: 3 complaints 60k to 80k miles: 7 complaints 80k to 100k miles: 3 complaints 100k to 120k miles: 0 complaints 120k to 140k miles: 0 complaints 140k to 160k miles: 0 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 60,000 miles
Based on 19 complaints that include mileage. 47% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles1
20k to 40k miles5
40k to 60k miles3
60k to 80k miles7
80k to 100k miles3
100k to 120k miles0
120k to 140k miles0
140k to 160k miles0
160k to 180k miles0
180k to 200k miles0
200k+ miles0

What the data shows

Of the 19 air conditioning & heating complaints that report mileage, the median is about 60,000 miles, and 47% were reported before 60,000 miles.

None of the air conditioning & heating complaints mention a crash, fire, injury or death.

What owners wrote

While servicing the vehicle mechanic discovered that driver's side heated seat burned. Consumer was unaware of the defect.

Reported at 27,768 miles, November 2004

I own a 2003 mitsubishi diamante ls with 70,000. I purchased the car from the dealership brand new. In november 2007, there was a strong smell of antifreeze in the car. After some investigation, it was discovered there was a leak in the heating core, which was causing the antifreeze to leak out of the compartment and into the cabin of the car...needless to say, the car is undriveable because of the health risks associated with breathing antifreeze. Estimated repairs are around $1500.

Reported at 67,000 miles, November 2007

Other problems reported for the 2003 Mitsubishi Diamante

Air conditioning & heating problems in other years

  • 2005
  • 2004
  • 2003
  • 2002
  • 2001
  • 2000
  • 1999
  • 1998
  • 1997
  • 1996
  • 1995
  • 1994
  • 1993
  • 1992