64 53 ... Notes on replacing drier bottle or drier insert
WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
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:
- fouling of the refrigerant by filings/shavings (e.g. when the compressor is clamped)
- a leaking A/C system or loss of refrigerant
- the refrigerant circuit being opened for a period exceeding 24 hours, e.g. during repair work.