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

Shown on MODEL 170 

Fig 1: Identifying Hot Film Mass Air Flow Sensor, Vent Line, Air Intake Connection And Sealing Ring - Shown On Model 170

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Open engine hood and move to vertical position	-	-
		-	-
	Remove air filter housing		AR09.10-P-1150AC
2	Detach plug (2) at hot film mass air flow sensor (B2/5).
3	Detach vent line (3) from hot film mass air flow sensor (B2/5)
4	Unhook vent line (4) from bracket at hot film mass air flow sensor (B2/5).
5	Open lock (5) at top of hot film mass air flow sensor (B2/5)
6	Use a hook to pull up lock (6) at top of air intake connection (7)	To do this, push hot film mass air flow sensor (B2/5) as far back as possible, until the lock (6) cannot latch again.
7	Use a screwdriver to press down lock (8) on the air intake connection (7)	To do this, push hot film mass air flow sensor (B2/5) as far back as possible, until the lock (8) cannot latch again.
8	Remove hot film mass air flow sensor (B2/5) from intake manifold	Installation:  Check sealing ring (9), replace if required. Check the sealing ring between the air intake connection (7) and the hot film mass air flow sensor (B2/5), replace if required. Check the lock, replace lock (5) or air intake connection (7) if required.
9	Install in the reverse order

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1002-06A	Lubricating paste	A 000 989 01 60