Remove/Install Hot Film Mass Air Flow Sensor - Ar07.07-D-1453SD

ENGINE 642, 646, 651 in MODEL 906 

Fig 1: Hot Film Mass Air Flow Sensor Component Locations

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove intake hose downstream of air filter (1) from hot film MAF sensor (B2/5, B2/7, B2/12 or B2/14)
2	Disconnect electrical connector (3) from hot film MAF sensor (B2/5, B2/7, B2/12 or B2/14)
3	Unscrew bolts from hot film MAF sensor (B2/5, B2/7, B2/12 or B2/14)
4	Pull hot film MAF sensor (B2/5, B2/7, B2/12 or B2/14) out of air filter housing (2).	Installation:  Inspect O-ring, install new ring if necessary.
5	Install in the reverse order