Thank you for contacting the Mercedes-Benz Customer Assistance Center.
The issue concerning the wear and tear of the tires of your Mercedes-Benz C 180, has been forwarded to the responsible dealership Stern Auto in Nieuwegein.
Stern Nieuwegein confirms that they advise you to change 2 tires and offered you a discount of 15%.
Wear and tear parts are not covered under the warranty of Mercedes-Benz.