Procedure notes
Daytime running lights, sometimes referred to as DRLs or DTRs, are lights that switch on automatically when your 2006 Audi A4 Quattro is turned on and in drive. Since the daytime running lights are on whenever you are driving your A4 Quattro, they are often the first bulbs to burn out. This video shows you how to change the daytime running lights in your 2006 A4 Quattro. You may get a warning light that the Audi DRL system needs attention when one side of the DRL lights in your A4 Quattro is not working. These bulbs grow dimmer by over 20% over time, therefore we recommend changing both bulbs on your A4 Quattro at the same time, even if only one bulb is burnt out - this will allow both DRL bulbs to have the same intensity and prevent the old DRL bulb from appearing dimmer than the new one. You may want to consider replacing your burnt out DRL with LED daytime running lights for optimal longevity.
When you change the daytime running light on your A4 Quattro, it is important not to touch the glass part of the bulb with your fingers because the oil from your fingertips will cause that part of the bulb to burn hotter, which significantly shortens the life of the bulb. Some studies indicate that driving with your lights on can reduce accidents by 18 – 34%, driving with your DRLs or headlights on the day can reduce your chance of getting in an accident.
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日间行车灯，有时也称为DRL或DTR，是指当您的2006 奥迪 A4 Quattro启动并处于驾驶模式时，会自动点亮的灯光。 由于驾驶 A4 Quattro 时日间行车灯会一直亮着，因此它们往往是最先烧坏的灯泡。 本视频演示如何更换您的 2006 A4 Quattro 车辆的日间行车灯。 当您的A4 Quattro车辆一侧的DRL灯不工作时，可能会出现奥迪 DRL系统需要关注的警告灯。 这些灯泡的亮度会随时间降低超过 20%。因此，即使只烧坏一个，也建议同时更换 A4 Quattro 的两侧日间行车灯灯泡，让两侧亮度一致，避免旧灯泡显得比新灯泡暗。 如果希望获得更长的使用寿命，可以考虑用 LED 日间行车灯替换已烧坏的日间行车灯。
在更换 A4 Quattro 的日间行车灯时，切勿用手指触摸灯泡的玻璃部分，因为指尖的油污会使该部分灯泡温度升高，从而显著缩短灯泡的使用寿命。 一些研究表明，开启车辆灯光行驶可减少18至34%起事故，白天开启近光灯或前照灯行驶可降低发生事故的概率。