Setup, Compatibility & Care
Before beginning installation, ensure your vehicle is a W639 chassis Vito or Viano. The unit is designed for the right-hand side (passenger side in RHD markets or driver side in LHD markets, confirm your orientation). To install, disconnect the negative battery terminal to prevent electrical shorts. Remove the front bumper or relevant trim as required by your specific vehicle service manual to access the headlight mounting bolts. Align the new Hella assembly, secure the bolts, and reconnect the electrical harness. After installation, it is highly recommended to have your headlight aim verified at a professional service center to ensure the levelling motor is calibrated correctly and the beam pattern complies with local traffic regulations. Keep the lens clean from road grime and salt to maintain maximum light output and protect the housing material.