Hey all -
Hope someone might be able to help me help my dealer. My warranty is up in January and so far, the Subaru dealer has been unable to track down the problem themselves. They are the only dealer in town, so my options are very limited for warranty work.
Anyhow, here's the story:
I bought a new WRX wagon in January 2008. It's completely stock, no aftermarket-anything, no accessories, no adjustments, etc.
Basically, since purchasing the car, each fall/winter the battery will die after anywhere from 1 to 5 days of sitting. It's been so bad that I'll start the car in the morning, drive to work, and in the 8 hours that pass while I'm working it will have died. I travel often, so typically I find my battery dead when I return and try to leave the airport to drive home, which is very frustrating. I live in Juneau, Alaska - while it gets cold, it doesn't get THAT cold. It seems that anything under 32F will trigger this behavior. I now just keep a portable jumper in the back.
I've taken the car to the dealer several times. Most times, they test the battery, alternator, starter, and check to see if there are any draws while the car is off. Typically, they come back and say everything is fine. They've replaced the battery twice and the issue persists. Most recently (March 2010), I instructed them to keep the car until it died. They did and said they'd tracked the draw to the stereo (6 CD changer w/ iPod interface), which apparently was staying on after the car was shut off - they removed the old one until the new stereo arrived, which took about 3 weeks. About a week after they installed the new stereo, the car died one more time, then was fine over the summer.
In the past couple of months, I've noticed that the cycle is starting again as the temperature drops and the car is having a difficult time turning over in 30F degree weather. However, now I've got a CEL - I took it to the dealer and the codes were P0138 and P0137, both related to O2 sensor and P2096 "cat fuel trim system too lean." The tech tested everything, said everything was fine, sent me on my way and the CEL came back about halfway home. Also, for the first time I've started seeing the red "check battery" light - the car will turn over, but the radio and clock/temp gauge don't turn on and I see the red light. After a few seconds of idling, everything turns on and the light goes away.
Anyhow, ANY ideas that I can pass along to my dealer would be awesome. They seem to be as frustrated as I am and just want to fix the car.
Thanks for any help.