OVP Overload Voltage Protection Relay - Replaces Mercedes 2015400845 Switches and Buttons It is the metal piece

It is the metal piece that connects at the top of the rear view mirror to attach the mirror to the dome light

which connects into the Dome Light Console

This is a simple and easy fix and can be replaced in five minutes

includes all electronic components

The rain sensor runs a wire through this piece

OVP Overload Voltage Protection Relay - Replaces Mercedes 2015400845 Switches and Buttons It is the metal pieceThis is a all new high quality reproduction of the 5 pin OVP Overload Voltage Protection Relay for select models of Mercedes Benz R107, W123, W124, W126, W201, as well as W460 and W461 G Wagon models. Replaces Mercedes part numbers 126 540 47 45, 1265404745, and 201 540 08 45, 2015400845. These parts have been out of production for a long time and inventory of OEM relays are no longer available. A failed part may cause your vehicle to not start up