A refrigerant leak may develop from one or more of the following AC components: AC compressor, hose manifold for the compressor, or the evaporator core. The loss of refrigerant can cause poor AC performance. Our technicians tell us that proper leak diagnoses should be performed in order to determine the cause of any refrigerant loss.
Poor AC Performance Due to Refrigerant Loss on Mercedes-Benz S500
Average mileage: 188,000 (188,000–188,000)
8 people reported this problem
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When I first purchased the vehicle the A/C would blow cool at the outset and would take quite a while before it would get cold. After just a week of driving the A/C went out completely. I had a friend, who's repaired & refurbished Mercedes vehicles, he said the compressor was going out. I had a mechanic do a diagnostic test and he indicated that it is the evaporator core. I asked him what would something like that cost to fix, and he told me with parts & labor it would come to about $3000! The part he said comes to about $1000! I priced one online via the Advance Auto Parts website and they had them priced between $116-$194!!! Is there two different evaporator cores for the vehicle?
Crack at the base where AC line connected to the condencer