Guides

How-to guides, buying guides and fixes for custom lighting, headlight repair, BMW coding and the parts we sell, from the KYCS workshop.

• Custom Lighting Guides

  11 guides

  • Can I have a 1/1 custom headlight build?
  • My car's headlights aren't listed: what to do
  • Custom headlights: what they are and what you can add
  • Buying guide
  • How-to
  • Troubleshooting
  All Custom Lighting guides →

• Headlight Repair Guides

  2 guides

  • After your lens replacement: misting and debris
  • BMW 5 Series G30, G31 and M5 F90 burnt or yellow DRL: how to check yours
  • Troubleshooting
  All Headlight Repair guides →

• Coding & Diagnostics Guides

  9 guides

  • Coding needed before fitting custom headlights
  • LED angel eyes or bulbs flickering at start-up
  • BMW F06, F12, F13 US tail light coding
  • How-to
  • Troubleshooting
  All Coding & Diagnostics guides →

• Parts & Fitting Guides

  1 guide

  • BayOptiks E92 Black Line tail lights: fitting and fixes
  • Troubleshooting
  All Parts & Fitting guides →