Bosch dryers are typically bought for quiet performance and efficient drying, but most dryer repairs still come down to a small set of wear parts. Consumer Reports lists dryers at about 13 years of life expectancy, which supports repairing many common failures when costs stay under the threshold.
Repairs are often worthwhile for belts, pulleys, rollers, door switches, and thermal fuses-especially if airflow issues (lint buildup, restricted venting) are corrected so the problem doesn't recur. Replacement becomes more attractive if the unit is older and needs a motor plus other parts, or if the dryer has repeated overheating that suggests deeper electrical wear.
Also consider venting safety: chronic overheating can be a fire hazard, making replacement more conservative even if repair seems affordable. The replacement price benchmark is a mainstream electric dryer listing at a major retailer; Bosch models can vary, so treat the threshold as a strict cap.