Remove/install hot film mass air flow sensor together with air intake pipe - AR07.07-P-1454AG

ENGINE 112.945, 113.962 /982 in MODEL 463 

ENGINE 113.980 in MODEL 210.074 /274 

ENGINE 113.944 in Model 202.033/093 

ENGINES 112.923 /943, 113.961 in MODEL 129 

ENGINE 113.943 in MODEL 208.370 /470 

ENGINE 113.984 in MODEL 208.374 

ENGINE 112.947 in MODEL 170.465 

Shown on Engine 112 

Fig 1: Identifying Engine Cover With Integral Air Cleaner, Crank Case Vent Line And Air Intake Tube

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove, Install
1	Remove engine cover with integral air cleaner (1).	Remove by pulling straight up from valve cover.
2	Unplug connector (2) of hot film mass air flow sensor (B2/5)
3	Detach crankcase ventilation line (3)
4	Release crankcase ventilation line on right at hot film mass air flow sensor (B2/5)
5	Open catch of hot film mass air flow sensor (B2/5) with a screwdriver
6	Push down catch of air intake pipe (4) at electronic accelerator actuator and remove air intake pipe (4) together with hot film mass air flow sensor (B2/5)	Do not damage catch.
7	Detach hot film mass air flow sensor (B2/5) from air intake pipe (4)	Push back retaining clip with a screwdriver.
8	Inspect seals of air intake pipe (4) and of hot film mass air flow sensor (B2/5), replace if necessary
9	Install in the reverse order