Owning a car always feels fine until the surprise sounds start. Keeping a vehicle running usually costs a couple thousand dollars a year in routine wear, and cold autumn mornings have a way of exposing worn rubber and tired bearings before you are ready for the bill.
When that high-pitched belt squeal starts up, expect to pay about $250 for a professional belt and tensioner replacement. Negotiate the repair estimate first, confirm the shop labor rate, and then decide how to finance the charge so it does not hit your checking account all at once.
Remember that an intro window is a firm deadline, not free money. If you do not pay off the $250 before the 18 months end, the regular interest rate applies to whatever balance is left over, making a basic repair far more expensive.