am going to replace low beam headlight bulbs. owners manual indicates it is either a D4S or a H7. VIN JTHBJ46G772033446.

can you advise which one to order?

 

The H7 is a halogen and the DS4 a HID no? What did your car come with? If unsure, provide your car's year and trim level. Someone might know what it came with.

 

D4S is an HID bulb while H7 is a halogen bulb which you can upgrade to HID or LED. If you don't know which headlights you have then take a look at the front of the headlight for a marking that will indicate which bulbs you have.

- Danny