I've just come across this which may be handy: "Windows Phone 8 communicating with Arduino using Bluetooth" http://developer.nok...using_Bluetooth
If I were doing the project, I'd look into the following (meaning I'd check that there wouldn't be any hardware conflicts before purchasing):
A CAN-BUS shield: https://www.sparkfun.../products/10039
(stacked on) a Bluetooth module: https://www.sparkfun.../products/11601 in a carrier shield: https://www.sparkfun.../products/10854
(stacked on) an Arduino Uno: https://www.sparkfun.../products/11021
You'll also need some of these headers to make the boards stackable: https://www.sparkfun.../products/11417
I hope you have some experience with basic electronics fundamentals and basic soldering. If not, I recommend looking through the tutorials on the Arduino website and soldering demonstrations on YouTube (or ask an electronics technician at your workplace).
There are many other microcontroller development boards which support the CAN interface - I'm not sure what the standard is at your workplace, but the Arduino would probably be the easiest to get started with. Once again, it's worth asking for other people's opinions.