Mercedes-Benz USA (MBUSA) is recalling 9,137 model year 2015 C300 and C400 vehicles manufactured from June 18, 2014, through September 5, 2014.
The affected vehicles were assembled with horizontal adjustment mechanisms that allow the owner to change the horizontal adjustment used during the manufacturing process, instead of the proper sealing caps. They, thus, fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
If the original horizontal adjustment is used to alter the low beam aim, the mis-aimed headlamp may not properly illuminated the road or cause increased glare to oncoming drivers, which increases the risk of a crash.
What to do
Mercedes-Benz will notify owners, and dealers will replace the horizontal adjustment mechanisms on the headlamps with sealing caps on the affected vehicles.
The recall began May 23, 2016. Owners may contact Mercedes at 1-800-367-6372.