In the U.S., the W210's got the same M104 engine as the W124's in the first two years - 1996 and 1997.
3.2 liters is the smallest gasoline engine they got.
FWIW, the W140 used the 3.2 liter M104 engine from 1992-1999. They never got the V6.
The 2.8 liter M104 was only used in the W202 C-class from1995-1997.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".