A vehicle wheel bearing apparatus has an outer member; an inner member and double row balls freely rollably contained between outer raceway surfaces and inner raceway surfaces. Panel members are slidably engaged to the corner pieces and are retained in a direction normal to the engagement direction by a track in each slot that nests within a groove in each panel member. The pertinent information about the error or event along with additional data regarding the computer and the user are transmitted via the online support chat session for display to the support personnel. Further, this system includes an endoscopic guide tube to be inserted into the esophagus, which has a main channel for inserting therein the endoscope, and at least one sub channel for inserting therein each of the treatment tools.