{"id":4894,"date":"2026-11-05T14:30:45","date_gmt":"2026-11-05T13:30:45","guid":{"rendered":"https:\/\/retrofitguru.com\/?post_type=product&p=4894"},"modified":"2026-11-06T18:24:24","modified_gmt":"2026-11-06T17:24:24","slug":"audi-a4-b6-bi-xenon-kit","status":"publish","type":"product","link":"https:\/\/retrofitguru.com\/en\/produkt\/audi-a4-b6-bi-xenon-sada\/","title":{"rendered":"Audi A4\/S4 B6 01 – 05 | Bi-xenon kit"},"content":{"rendered":"

Audi A4 \/ S4 B6<\/strong> (2001\u20132005) bi-xenon kit contains everything you need to replace the original bi-xenon projectors with new ones. The kit is for factory bi-xenon headlights with a 3-inch lens. The original aiming and automatic levelling stay.<\/p>\n

Why original projectors fade over the years<\/h2>\n

The reflector in the original projector has a thin chrome layer. Over the years, heat from the bulb burns it off, the surface turns dull or black and the light has nothing to bounce off. The bulb still shines, but only part of the light gets out, which is why new bulbs usually don't help.<\/p>\n

What changes with the kit<\/h2>\n
    \n
  • The reflector is aluminium. It dissipates heat better, doesn't warp and the chrome lasts longer.<\/li>\n
  • The shield is laser-cut, so the cut-off is sharp and no light goes above it.<\/li>\n
  • The clear lens lets through as much light as possible and gives the blue cut-off edge.<\/li>\n
  • The original halogen high beams stay connected. On high beam the solenoid folds the shield down and the projector shines too.<\/li>\n<\/ul>\n

    Measurement<\/h2>\n

    In our measurement, a typically worn original projector gave 435 lx and the projector from our kit 5,995 lx. We measured with a lux meter on the same wall from 3.5 m, with the same bulb and ballast.<\/p>\n

    What's in the box<\/h2>\n
      \n
    • 2\u00d7 bi-xenon projector<\/li>\n
    • 2\u00d7 adapter for Audi A4 B6<\/li>\n
    • 2\u00d7 bulb holder<\/li>\n
    • solenoid cables and quick splice connectors<\/li>\n
    • screws, washers and nuts for mounting the projector<\/li>\n<\/ul>\n

      Bulbs are not included. The projector takes the same bulb as the original, so your original xenon bulbs in good condition will do.<\/p>\n

      Fitting<\/h2>\n

      The kit is plug & play: no cutting or drilling, and the lenses stay sealed. The projector is changed from the back after removing the rear headlight cover. You need a Torx driver, a Phillips screwdriver and a socket set. A video guide comes with the kit, and if you get stuck, call us on +420 736 443 413.<\/p>\n

      Before you order<\/h2>\n
        \n
      • The kit is only for factory bi-xenon headlights with a 3-inch lens. It does not fit headlights with the smaller xenon lens, halogen headlights or Cabriolet headlights. Not sure? Send us a photo of the front and back of the headlight and we will check.<\/li>\n
      • Aftermarket headlights (such as DEPO): write to us before you order.<\/li>\n
      • The lenses must be in good condition. Yellowed or cracked lenses scatter the cut-off. We also have new covers for the A4 B6.<\/li>\n
      • The kit is not intended for use on public roads. Fitting and use are the vehicle owner's responsibility.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

        Bi-xenon kit for the Audi A4 and S4 B6 with factory bi-xenon headlights with a 3-inch lens. It replaces the worn original projectors with new ones, the original aiming and automatic levelling stay.<\/p>","protected":false},"featured_media":4900,"template":"","meta":[],"product_brand":[],"product_cat":[34,1441],"product_tag":[],"class_list":["post-4894","product","type-product","status-publish","has-post-thumbnail","product_cat-audi","product_cat-bixenon-sady","first","instock","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nAudi A4\/S4 B6 01 - 05 | Bi-xenon sada - Retrofit Guru<\/title>\n<meta name=\"description\" content=\"Bi-xenon sada pro tov\u00e1rn\u00ed bi-xenony Audi A4 a S4 B6 se 3palcovou \u010do\u010dkou. Nahrad\u00ed vysv\u00edcen\u00e9 projektory, regulace sklonu z\u016fst\u00e1v\u00e1. Pos\u00edl\u00e1me do cel\u00e9ho sv\u011bta.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/retrofitguru.com\/en\/product\/audi-a4-b6-bi-xenon-kit\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Audi A4\/S4 B6 01 - 05 | Bi-xenon sada - Retrofit Guru\" \/>\n<meta property=\"og:description\" content=\"Bi-xenon sada pro tov\u00e1rn\u00ed bi-xenony Audi A4 a S4 B6 se 3palcovou \u010do\u010dkou. Nahrad\u00ed vysv\u00edcen\u00e9 projektory, regulace sklonu z\u016fst\u00e1v\u00e1. 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