Yes, that is a dual-relay load-reduction relay called the OverVoltage Protection relay = OVP relay.

It should be off with the key off, and on with the key on. It provides power to the ABS system / 4matic system among other items, if bad it usually has multiple symptoms but on this car it stuck on, but not completely on, ... so the 4matic and ABS were having trouble.

Fuses usually outlast the relay oddly enough.

Just something to check.

__________________

Gone to the dark side

- Jeff