Aside from the assembly failure, you can try to replace the halogen bulb of POLO, which is not expensive, and Philips' is 40 yuan. If it is an assembly failure, please go to the maintenance point for repair. The price is estimated to be between 300 and 600.

In addition, I still recommend that you go to 4S for repair, because the accessories there should be considered original and pure, and most of the things in the garage are imitations.

I hope it helps you.