Mercedes-Benz SL500 right front beam light not working after xenon bulb replacement, control module likely needs replacement on Mercedes-Benz SL500

Some Mercedes-Benz SL500 owners report experiencing issues with the right front beam light after replacing the xenon bulb, potentially indicating that the control module may need replacement. These owners often find it necessary to check the power supply to the module, particularly at terminal 4 of connector #3, to ensure proper functionality. Additionally, many recommend starting with a fuse check, as a significant percentage of headlight issues are related to the ballast, which may require replacement if the fuse is intact. In some instances, owners discover multiple ballasts beneath the headlight housing, necessitating the removal of the entire headlight assembly and possibly the front bumper to access them. Common problems with xenon lights typically involve the bulb or ignitor, which should be inspected if the right front beam light fails to operate post-replacement. Furthermore, some owners experience a bulb warning light after activating the sidelights, which may indicate underlying issues with the front side lights, rear tail lights, or plate lights, even if the bulbs appear functional.