Marking of camshaft bearing caps - AH05.20-N-6992-01A
Engine 111
ENGINE 111.9
ENGINE 111.948/978
When installing camshaft bearing caps note the numbering and install camshaft bearing cap at same position again.
Engine damage can occur otherwise.
The camshaft bearings are successively numbered from 1-10, starting with the front exhaust camshaft.
The numbers are stamped into the bearing cap using number punches and cast into the cylinder head.
Courtesy of MERCEDES-BENZ USA