In this video I show how to replace a faulty or broken alarm siren on the w211 e-class. If your Mercedes has a problem with flashing the lights randomly or making odd noises, you may need to replace the siren for the alarm system. Part number used is 2198203226.
W211 cars include 2003-2009 e-class e280, e300, e320, e350, e500, e550, e55, e63. Other Mercedes have this problem such as w219 cls s cl.