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Old 07-08-2009, 12:40 PM is offline
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Location: Belgium
Join Date: Jun 2007
Posts: 75
Mein Auto: 540i Porsche 911 3.2
Yes they do break, but replaced they adjust the low Xenon and high QI beams at the same time. Do it with the engine running, then the auto system corrects for load. I find it difficult to understand how anyone can expect to adjust these without using beam setting equipment.
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