S 600 (140.057) V12-6.0L (120.982) (1998)
Engine 120
B2/6
Left hot film mass air flow sensor (position at right of engine) cylinders 7-12
Between air cleaner and intake manifold in air intake duct
Engine 120
B2/7
Right hot film mass air flow sensor (position at left of engine) cylinders 1-6
Between air cleaner and intake manifold in air intake duct