You mean replace the hose? Or the receiver drier?

It's been a while since I replaced it - do you recall if there's an O-ring in there? I may just replace the O-ring, vacuum, replace oil, and recharge.

Or are you saying the hose tends to leak and it should be replaced?

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
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75 W114 280