My vehicle was pulling in the rear when braking. My mechanic informed me that it was a rotted undercarriage. When I called Mercedes they informed me that there is a problem with many models of Mercedes with this. They told me there is a warranty to cover it. This is a very dangerous condition. There should be a recall on all impacted vehicles. This safety failure and lack of transparency by the company (reportedly known for years) puts owners and motorists at risk. Please investigate. To make matters worse, the Dealers are unresponsive and slow to provide service and help. One dealership, Mercedes in New London CT has ignored my repeated phone calls and emails trying to clarify and schedule service. I went to another dealership Mercedes in Warwick RI. They have been more responsive with confirming the issue--but there are delays in getting the vehicle fixed--and no provision of loaner vehicles requiring the renting of vehicles during this time frame. Please investigate and require a recall.