64 53... Instructions for desiccant insert replacement
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2016 BMW 435i xDrive, 2016 BMW 435i, 2016 BMW 428i xDrive, 2016 BMW 428i, and 2015 BMW 435i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
A desiccant insert that is in a correctly functioning, sealed heating and air conditioning system does not have to be changed at regular service-inspection intervals.
However, the dryer flask or desiccant insert must absolutely be replaced in the event of:
- contamination of the refrigerant with swarf (e.g. when the compressor is clamped).
- With depressurised and/or completely drained refrigerant circuit.
- With 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
- 1-Series F2x, 3-Series F3x
- BMW i 01 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.