Wing Mirror heating issues

[Mk5Dom]

Morning Chaps.

This morning on the commute when I turned on the heated mirrors only the passenger side de misted. Does anyone know what the likely cause is? Possible new wing mirror glass for the driver side? I only replaced this one a few months back; genuine stealer item and all terminals are connected.

Do you think a VCDS scan would shed any light? Can do one tonight.

Cheers
Dom


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