BMW has a PuMA measure for it, I am copying the information for your use. Hope this helps...
PuMA measure
CID (Central Information Display) - black spot in display
TR 64609493-03 - 18/12/18
Complaint:
The customer detects a black spot in the CID.
Cause
Gas bubble within the CID.
Measure
In the event of a customer complaint, proceed as follows.
Exchange CID
Invoicing:
Processing and reimbursement must be conducted according to current warranty conditions.
The flat rate unit numbers and flat rates are saved in the Commercial Service Data (KSD) / AIR systems.
Recommended defect code for GWK cases: 65 52 00 33 00 optical distortion.
Validity information
Model series:[F21, F20, F23, F45, F22, F25, F46, F49, I01, F26, F48, F07, F06, F30, F32, F54, F10, F31, F12, F56, F34, F11, F33, F55, F36, F13, F57, F35, F16, F15, F18]
Engine range:[ALL]
Body style:[ALL]
Fault codes:[]
Production period:from 01/03/16 up to 01/03/17
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