1. A/C compressor. Often is stator that pulls clutch in to engage the compressor, but dealer will replace compressor anyway--more money to dealer and less chance of car return. Stator costs $75 and takes 2-3 hr. to replace=$400 repair, not $1300 for compressor. 2. Power steering noise requires new reservoir NOT pump. There is TSB on this. Total parts and fluid around $45. Takes 20 minutes. 3.Transmission not shifting well. Honda changed fluid spec to DW1 from Z1. Put new fluid in before replacing transmission--requires 3 fill and drain cycles of 3.5 qt 4. Power doors. You need to lubricate channels at least yearly. My doors have no problems after 9 yr. and 130,000 miles and 3 kids.
At 13,771, blue gray smoke coming from the exhaust system and dealer reported caused by condensation, normal operation. My vehicle was serviced at Honda dealerships for 30, 60 and 90 K mile service work as recommended by Honda. Over the years, service records have indicated work to door seals, faulty mechanics of siding doors, faulty Honda batteries( 4<4 years), premature failure of systems, such as air conditioning, power steering, and catalytic converter. Another interesting, but significantly disappointing fact, is that the seals for my doors, the back hatch door that was most recently replaced has leaked water in the back of the minivan and sides even after replacement at Honda service.
We have gotten every penny out of this car. It is 11 years old and still only requires routine/expected maintenance. It is great for packing in a bunch of people comfortably. My only criticism might be that the middle seat belts (2nd and 3rd row) hit too high on neck even for an adult (5'8"). That is something to consider when you count out how many people/kids you will routinely transport. Really can't go wrong with any Honda, in my opinion.
With 142,000 miles on our '05 Odyssey, there's still quite a miles on the original brake pads and the original plugs are still firing fine, but our second set of tires are just about done. We've also had to have the fluids and filters replaced quite a few times. Otherwise; it fires up immediately, in hot or cold, wet or dry; and takes us in comfort to wherever we wish to roam. We're glad we decided against the Touring model with it's PAX run flat tires, but wish there was room for a full size spare. The only other nit to pick is the attachment of the plastic pieces around and under the front end. With mostly highway driving we average around 25 mpg - not bad for an 8 passenger vehicle!