Can a plumbing problem be fixed without part replacement? on 2004 Volkswagen Passat

I have a Freon leak that they say is at the nozzle to the evaporator. Dealer wants to charge me 1850.00 to replace the evaporator...Can't they just solder the leak?

Asked by for the 2004 Volkswagen Passat
Air conditioning systems have a high proportion of unsatisfactory repairs. Even to solder the evaporator pipe the system would have to be evacuated repaired and then tested for leaks. The refrigerant molecules are small and any leak will result in system failure quickly. Call around and find a shop that specialize in AC repairs and get another quote. Replacement alone of the evaporator is 6.6 hours labor, add cost of all associated parts and evac and recharge.