Not the case in my 4.8 IS 2006. I do have the capacitors and the led lights do no flicker on cold monitoring.
When i installed the backup camera, i hooked the 12 V power from the reverse light, and also installed a capacitor due the pmw. I had incandescent bulbs for rear fog and reverse lights.
Last week, i replaced these four bulbs by led bulbs, and the cold monitoring make the three without capacitor flicker. The reverse with the capacitor does not flicker, the same with the brake and rear lights (led by sonar).
I will install the capacitors in these three bulbs to solve the cold monitoring flickering.
The capacitors i'm using are the 18.000 uF 50 V.

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BMW E53 4.8 IS 2006 -