Cooper Convertible (R57) L4-1.6L (N12) (2009)
Receiver Dryer: Service and Repair
Notes on Replacing Drier Bottle or Drier Insert
64 53 ... - Notes on replacing drier bottle or drier insert
The drier bottle or drier insert does not have to be replaced at regular service intervals in a functioning, leakproof A/C system.
However, the drier bottle or drier insert must be replaced without fail in the event of:
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the refrigerant being fouled by chips (e.g. when the compressor is clamped).
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a leaking A/C system or loss of refrigerant
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the refrigerant circuit being open for a period exceeding 24 hours, e.g. during a repair.