How to Remove the OVP Relay in a Mercedes

1. Drive the car onto a flat surface and shift the transmission into park. Turn off the engine and depress the parking brake pedal. Pop open the hood.
2. Locate the OVP relay box. It is made from black plastic and is located directly behind the vehicle's battery.
3. Remove the cover from the OVP relay box and pop open the clear plastic cover holding the 10-amp fuse to the relay. Remove the fuse from the relay. Remove the relay from the relay box.