Oh, I thought they were talking about the "cool harness".
This is the first I've read of this Sachs VFC (viscous fan clutch?).
It locks up at 90 degrees? Geez, my car runs around 92-95 degrees everday on the freeway.
What temp is the stock VFC supposed to lock up at?
Is Sachs the manufacturer?
Where do you order them and how much do they cost?
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".