If you can find a replacement plunger or maybe a broken wire inside you can replace or repair. Not sure if the plunger is "dead" if it can be repaired or not.

Would I attempt it? Yes, with the plan to completely replace if needed. I know you can find replacement lens online (ebay and other places) and if I remember correctly there is a few how to write ups here where people have replaced the lens, added new angel eye rings and other work on the headlights. You'll need to search for those however.

Hope this helps

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'01 740i Sport MKIV, Quad Brake Lights, Bi-Xenon retrofit, HID Fogs Dinan 7 Struts, Springs, camber plates, Intake, MAF, CAI, Throttle Body, NBT Retrofit, Strong Strut


'99 318ti Titanium Silver; '97 318ti Boston Green; '13 X5 3.5i Saphire Black Metallic
'84 633csi Black (sold); '88 325iC Black (sold); '97 740iL Black(sold); '01 740iS Black (sold);'97 318ti White (sold); '08 X5 4.8i Titanium Silver (sold); '96 318ti Alaska Blue (sold)