Hello,

I'm driving S60, 2015. It have Bi-xenon lights. Since yesterday, I have problem with left light. When I set it to auto mode, after few minutes light stop working, and when i switch it manually to off, then again to auto it start then again after few minutes stop. So, what is common issue for this problem?
Thanks

This is message that is written when it stops

 

if you have the time, try swapping the bulbs left/right then swap the ballasts. If the problem moves to the other side, then you have the culprit.

 

Thanks for advice. I swap it and confirm that bulb are causing the problem. Do I have to change them both at the same time? This is the type of bulb, or you recommend some other type:

 

D3S (35W) is the bulb type, I recommend ordering them from FCPEuro because they are expensive bulbs. They have a lifetime warranty policy, even for bulbs. So if you plan on keeping the car for some time, your next ones will be reimbursed.

You can replace individually. I believe they are sold individually as well.

 

I bought these two, there is some positive reviews
GT Ultra Xenon D3S | Single Headlight Bulb | PowerBulbs EU

 

Ahhh, EU. Designed in Germany, Cant go wrong

 

You were right. After several months of use, they become purple. I got refund without problems.