63 99... Safety instructions for exchanging bulbs (interior lighting) (330i xDrive Wagon, 328d xDrive Wagon, 330i GT xDrive, 340i GT xDrive)
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IMPORTANT:
To avoid short circuits, disconnect bulbs from the power supply before replacing them (lighting system and ignition off).
Do not touch the glass plungers in new lights bulbs as even the slightest contamination will cause etching and reduce bulb service life.
Only touch light bulbs with clean gloves or a clean cloth.
Do not expose light bulbs to mechanical vibrations.
Use only recommended light bulbs.
Follow the light bulb manufacturer's notes without fail.