So my headlights got so bad it was dangerous to drive at night.
I'd already replaced the stock D1S with new genuine Philips Xtreme Vision so I knew it wasn't the bulbs.
After some research I discovered that the Valeo projectors inside the headlights are known for burning out at the back, causing light output to drop.
I bought a set of lightly damaged headlights from a wreck and some plastic welding tools to repair the broken tabs.

Bought a set of Aharon Optimus NT projectors for Right Hand Drive (also known as Left Hand Traffic) from Retrofit lab:
Aharon Optimus NT - Bi-xenon projectors Hella design

Cut the headlights open with a dremel in order to access the projector assemblies within:

Needed new brackets to mount the new projectors as they are slightly fatter and deeper:

Sealed up the headlights with plastic weld staples and Sikaflex 227:

Original low beam:

Upgraded low beam:

Cutoff:

Original High beam:

Upgraded high beam:


Inner shrouds:
TAOCHIS Car Styling Shrouds Mask for 3.0 inch HELLA 3R G5 Koito Q5 Bi Xenon Projector Lens Retrofit Head Light Volkswagen Tiguan on AliExpress
Brackets:
TAOCHIS Adapter frame Head light for VW Volkswagen Magotan Adaptive Frontlighting System AFS Hella 3R G5 Projector lens-in Car Light Accessories from Automobiles & Motorcycles on AliExpress
I'd already replaced the stock D1S with new genuine Philips Xtreme Vision so I knew it wasn't the bulbs.
After some research I discovered that the Valeo projectors inside the headlights are known for burning out at the back, causing light output to drop.
I bought a set of lightly damaged headlights from a wreck and some plastic welding tools to repair the broken tabs.
Bought a set of Aharon Optimus NT projectors for Right Hand Drive (also known as Left Hand Traffic) from Retrofit lab:
Aharon Optimus NT - Bi-xenon projectors Hella design
Cut the headlights open with a dremel in order to access the projector assemblies within:
Needed new brackets to mount the new projectors as they are slightly fatter and deeper:
Sealed up the headlights with plastic weld staples and Sikaflex 227:
Original low beam:
Upgraded low beam:
Cutoff:
Original High beam:
Upgraded high beam:
Inner shrouds:
TAOCHIS Car Styling Shrouds Mask for 3.0 inch HELLA 3R G5 Koito Q5 Bi Xenon Projector Lens Retrofit Head Light Volkswagen Tiguan on AliExpress
Brackets:
TAOCHIS Adapter frame Head light for VW Volkswagen Magotan Adaptive Frontlighting System AFS Hella 3R G5 Projector lens-in Car Light Accessories from Automobiles & Motorcycles on AliExpress
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