We own a 2006 Odyssey EX-L. Within 2 years and 10,000 miles after purchase the air conditioning stopped working. The dealership diagnosed the problem over the phone by suggesting roadside damage to the condenser. The exact problem was confirmed when we took the car in for repair. A quote of $850 in repair charges when the car is still under manufacturer's warranty!
Looking at many other reports, the car has a flawed, unprotected placement for the A/C condenser, which makes it highly prone to roadside damage. Honda and their dealerships are fully aware the problem. They have not made any recalls since it is a good money making business for both: "genuine parts from Honda" and "friendly service and labor fee" for the dealership!! A single incident can cause the buyer of a new car in upwards of $800 with no further warranty. The same problem can occur within days. I did not expect Honda to remain insensitive to this major problem with their car design.
The same thing happened to my 2007 van. A rock damaged the cond and the cost to repair was going to be over $900. Luckily, my dealer fought my case and Honda paid for the repair.
The 08 have bumper inlet grids that protect the A/C unit. If you have an 05-07 just have grids installed, or place something to protect the condenser.
I am now suffering from my 2005 Honda Odyssey. Suddenly AC stop working and they said that the coil of AC got burnt and that burn the clutch also. They also said that the compressor condition is not good. How come it is only 4 and half years old. I am suffering with this car. I wish I have money to replace this car.
I can tell only one thing that I will never buy any Honda car in future.
I thought I had major problem with my AC in my 2004 Honda Odyssey. It would run, but not put out much cold air. When I looked into it, I found they have a filter that needs to be changed at least once a year. After changing the filter it ran fine.