the 2.8 would be basicallyt he same engine as a 300e ina 2.8 liter version.
Whatever applies to those engines should pretty much apply to a C280.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.