The repair of the brake lines of your car is very important, and should not be taken for granted. Depending on the make and model of your car, repair and replacement of auto brake lines will range from $70-$150. The higher end cars have naturally more expensive brake lines. If you are taking your car to the shop to have it repaired, mechanics will charge you an extra $100 or two depending also on the reputation of the shop. It is recommended that if you are not familiar with the repair of brake lines, it is best left to a professional, so you don’t compromise your safety.