Different MB models share this same part, hence the two slots for fuses, depending on the electrical configuration of the particular vehicle.
You should only have one fuse...adding another won't change a thing. Pulling the existing one will make your car run REALLY bad!
You may have to search other threads, but the defective one has a particular part # and is manufactured by Siemens in Austria. The replacement has a different part #.
But I'm not sure the OVP is the cause of your ills...and the ABS light does not necessarily illuminate when there is a problem...
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car