OK, I replaced the OVP with the single fuse KAE aftermarket replacement. Nothing changed.
I am only a beginner w/ all this auto-troubleshooting stuff but it seems like everything I research on MercedesShop points to the OVP (except lack of ABS light illumination). My cruise control surges, a/c suddenly dead, and hard starting when cold. Then again I guess this could be three seperate problems...
Any more suggestions out there? Did I get a bad OVP?