If it's
THAT bad it's probably not the fault of the bulb, although they are probably old and dim and can certainly be improved. Most likely they just need to be aimed correctly. That means with an optical aiming machine, not a tape measure and a wall. Your Lexus, Mercedes, Porsche dealer will certainly have one. Every dealer and body shop should, but they don't.
If the headlamp lenses are clouded over the entire assembly should be replaced as the internal reflectors are likely degraded as well, even if you can't tell by looking at it. However, that may be thousands of dollars ( but what's her safety worth to you?) In the case of our Cayenne, I had them polished and covered in PPF by our local detailer.
Put
these in the halogen low beams or
these if they are HID. For a very notable improvement in the high beams, replace the bulbs with
these after you modify them like
this.
Again, if you don't properly aim them, it'll all be in vain.
For some reason some of my Amazon links are being redirected to Wal-mart.com so here they are.
Philips H11 X-tremeVision https://www.amazon.com/dp/B00U1OIESK/?tag=2402507-20
OSRAM D4S 35W P32d-5 XENARC NIGHT BREAKER LASER https://www.amazon.com/BREAKER-Gene..._1_5?keywords=osram+d4s&qid=1579786964&sr=8-5
ACDelco HIR1 https://www.amazon.com/dp/B000C9QPKS/?tag=2402507-20
