Loosening/securing the nut on the oil pump flange

NOTE: TECHNICAL INFORMATION 
The thread is a left-hand thread.

• IMPORTANT: Nut (1), left-hand thread
• Position the special tool 0 493 940 (11 9 280)  on the camshaft sprocket flange.
• Unfasten nut (1).

Courtesy of BMW OF NORTH AMERICA, INC.