Photo of 2015 C-Class courtesy of Mercedes-Benz.

Photo of 2015 C-Class courtesy of Mercedes-Benz.

Mercedes-Benz USA is recalling 9,137 2015 model-year C300 and C400 luxury cars because their headlamps don’t comply with all federal safety standards, the National Highway Traffic Safety Administration reported.

The vehicles were assembled with horizontal adjustment mechanisms that allow someone to change the horizontal adjustment used during the manufacturing process, instead of the proper sealing caps, NHTSA said. If the original horizontal adjustment is used to alter the low beam aim, the misaimed headlamp may not properly illuminate the road or may cause more glare to oncoming drivers.

The vehicles at issue were manufactured from June 18, 2014, through Sept. 5, 2014.

Mercedes-Benz dealers will replace the horizontal adjustment mechanisms on the headlamps with sealing caps on the affected vehicles.

The recall is already in progress. Vehicle owners can reach Mercedes-Benz at (800) 367-6372.