Instructions for desiccant insert replacement (M5 2018-2022)
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Required Special Tools:
- 32 1 270
A desiccant insert need not be changed at regular inspection intervals in a well-functioning, sealed air conditioning system.
However, the dryer flask or desiccant insert must absolutely be replaced in the event of:
- contamination of the refrigerant with shavings (e.g. when the compressor is clamped).
- With depressurized and/or completely drained refrigerant circuit.
- In case of a refrigerant circuit, which was closed using special tool 32 1 270 but remains open for more than 24 hours.
The desiccant insert cannot be replaced in the following vehicles:
- 1-Series E8x, 3-Series E9x from 12/2008
- E84, E89
- F series
- G series
- BMW i without heat pump
In these vehicles, the condenser for the heating and air conditioning system must be replaced.
- BMW i 01 with heat pump
On this vehicle the low pressure battery must be replaced.