So now what do I do? Gather your documents and payment method.Include the payment amount. Include the date you plan to make the payment. When your loan is paid off, your lender will send the lien release to the DMV. Choose the form(s) you need from the list below, complete and return using the regular or overnight mail directions at the bottom of the page. Your account number is at the top of your monthly statement and on the payment coupon at the bottom of the statement. Online. See the sections below or use the search feature to find answers to questions about Mechanics Bank Auto Finance and managing your auto loan. Contact several banks or credit unions to get a prequalification letter that you can take to the dealership. How can I prove that my car is paid off?