 I bought this vehicle new and within weeks of purchase it began displaying a warning light relating to the suspension system.  I have had suspension problems over and over again with this vehicle.  I had it at the Mercedes service center four times  in less than 2 months this summer--each time was due to a suspension problem.  I called Mercedes USA to no avail.  They would promise a remedy but fail to follow through.  I will not purchase another Mercedes because, in my experience, the company does not stand behind defective products.  