no heat sometimes..

Hard to believe that a vehicle with only 50K kilometers (30,000 miles apprx) needs this kind of repair. I have been driving vehicles since 1960 and have had a problem with heat except for bad thermostats or low fluid....both of which are easily repaired by owner. Apparently this is an ongoing problem with this vehicle for past number of years. Over $500 to repair at dealer...got a price from local shop for $280