Remove/install hot film mass air flow sensor together with air intake pipe - AR07.07-P-1454AA (SL500)

ENGINE 112.922 in MODEL 220.063 /163

ENGINE 112.923 in MODEL 129.059

ENGINE 112.943 in MODEL 129.064

ENGINE 112.944 in MODEL 220.065 /165

ENGINE 113.941 in MODEL 220.070 /170

ENGINE 113.960 in MODEL 215.375, 220.075 /175

ENGINE 113.961 in MODEL 129.068

ENGINE 113.963 in MODEL 230.475

ENGINE 112.973 in MODEL 230.467

ENGINE 112.972 in MODEL 220.067 /167

ENGINE 112.975 in MODEL 220.087 /187

ENGINE 113.948 in MODEL 220.083 /183

ENGINE 113.966 in MODEL 220.084 /184

Fig 1: Identifying Hot Film Mass Air Flow Sensor With Air Intake Pipe Components - Engine 112 & 113

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Withdraw ignition key
2	Remove cover on front side of engine
3	Take off air filter together with intake pipes
4	Separate electrical connector at hot film mass air flow sensor (B2/5)
5	Detach crankcase ventilation line (1/2) at air inlet connection (2/2)
6	Press down catch (arrow) of air inlet connection (2/2) with a screwdriver	Avoid excessive pressure otherwise catch may break off.
7	Take out hot film mass air flow sensor (B2/5) with air inlet connection (2/2)	Before removing the air inlet connection (2/2), detach cable (arrow) of electronic accelerator actuator.
8	Install in the reverse order