cost for transmission flush
For a transmission flush, expect to pay anywhere in the range of $75 and $380. On average though, the typical driver will pay around $150-$200. However, this is assuming the vehicle is not a high end luxury car and that it isnât serviced in an area with a high cost of living.t dealerships the transmission flush cost can range from $75-$300, with an average cost of $200. The different factors that affects the cost includes: 1  Type of flushing equipment (cooler line or pump inlet). 2  The amount of fluid used (average is around 12-22 quarts).