Dependent Origination

Lexus Intermittent Headlight Problem

Posted on: February 26, 2017

One of our front lights was dead. The other has been intermittent, which means it would be on for a while, such as fifteen minutes, then it would be off, but next time it would be on again. This has been going on for nearly two years. And I have been turning on high beam for night driving all this time. The reason? It would be too damn expensive to fix it. According to dealer and other run-of-mill mechanic, I would need to replace both the hid light bulb and the ballast, the computer control unit of the light. The hid light bulb, mind you, is quoted at $275 not from dealer. From dealer it would be $290. The ballast unit would be about $200. Replacing the ballast would require taking off the entire lamp component and therefore the labor cost is at two hours, making the total for a single side ~$675. Having both lights fixed would be ~$1350. And this is not a dealer quote.

We recently decided to fix this problem since we are getting on a trip to a more remote place and it might involve night driving a lot. Apparently, the way to reduce cost: 1. buy OEM light bulb; 2. buy after-market ballst; 3. do it yourself. Luckily for us, once we replaced both light bulbs, all are fine now. We bought the bulbs off Amazon, them being naked-eye identical with the dead bulbs they replaced. So the $50 per bulb solution sounds so much more attractive than the $275 dealer version. You can check out the bulbs here (D4S, 42042).

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