All that is in the fuse box is 3 rows of fuses. Behind that are two silver relays. Behind that there is a big black relay that is a little wider than the two silver relays put together. There are no fuses on top of any of the relays. This is a 190E 2.6. I can't get the fuse box cover off, but I can tilt it open and get my hand in there. I already swapped the two silver relays, they were identical. I pulled the big black one out and opened it up. There are 3 relay switches inside, and they all look OK. Any ideas

Pete