Owner's Manual
Page 12
...substantial defects or malfunctions in the vehicle that defect or malfunction has been subject to repair two or more times, and you have directly notified Mercedes-Benz USA, LLC in writing of the need for its repair, (2) the same substantial defect or malfunction of a less serious nature than 30... notification should not be sent to a dealer, it should be entitled to a replacement of your vehicle or a refund of the purchase price or lease price, if Mercedes-Benz USA, LLC and/or its authorized repair or service facilities fail to fix one or more than category (1) has been subject to repair...
...substantial defects or malfunctions in the vehicle that defect or malfunction has been subject to repair two or more times, and you have directly notified Mercedes-Benz USA, LLC in writing of the need for its repair, (2) the same substantial defect or malfunction of a less serious nature than 30... notification should not be sent to a dealer, it should be entitled to a replacement of your vehicle or a refund of the purchase price or lease price, if Mercedes-Benz USA, LLC and/or its authorized repair or service facilities fail to fix one or more than category (1) has been subject to repair...