I've called a few transmission places and asked about having a solenoid replaced on my mechatronics and they all say its not possible and they whole unit needs to be replaced, yet there are parts available online and videos documenting the process online so I'm thinking they're all taking the easy route and replacing the whole unit to save themselves from any hassles later on. The borgwarner solenoid is about $200 but having trouble finding anyone willing to do it, about to bite the bullet and do it myself unless i can find someone ..