Will the automatic deduction of car loan from Bank of Communications exceed the repayment amount?

No. Deduction will only be initiated after the automatic loan deduction amount is set in the system, so there will generally be no excessive deduction. Before each deduction, the system will first detect how much money the user has left to repay, and then initiate the deduction according to the amount to be repaid, so the automatic deduction of the car loan of Bank of Communications will not exceed the repayment amount. Automatic loan deduction requires the user to sign a withholding agreement with the lending institution, and the automatic loan deduction cannot be lifted before the loan is paid off.