Originally Posted by BMWLotAttendant
If you are a technician, why are you asking these questions?
Maybe he's a medical technician
On e46 make sure it have been maintained, looks for signs of wear and tear in the engine bay and shock towers. Make sure you take it for a test drive, keep the radio and air conditioning off and listen to the car noises to see if anything is abnormal (Then turn those things on of course to make sure they work). It you want to be really safe take it to a trusted mechanic and have them check it out for you.