Removing/installing the hot film mass air flow sensor together with air intake pipe - AR07.07-P-1454TY

ENGINE 113.967 in MODEL 219.375

ENGINE 113.990 in MODEL 219.376

Fig 1: Identifying Hot Film Mass Air Flow Sensor Together With Air Intake Pipe Remove/Install Components

G10767433

Courtesy of MERCEDES-BENZ USA

	Removing/installing
	Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.	When moving components, ensure that no body parts or limbs are within the operating range of moving parts.	AS00.00-Z-0011-01A
1	Open engine hood		AR88.40-P-1000TX
2	Remove air filter housing (1).	Model 219.375	AR09.10-P-1150TY
2	Remove air filter housing (1).	Model 219.376	AR09.10-P-1150TZ
3	Remove the electrical connector (2) at the hot film mass air flow sensor (B2/5)
4	Detach vent line (3) from hot film mass air flow sensor (B2/5)
5	Release vent line (4) from bracket at hot film mass air flow sensor (B2/5).
6	Open top catch (5) at top of hot film mass air flow sensor (B2/5)
7	Use a hook to pull up bottom catch (6) at top of air intake connection (7)	To do this, push the hot film mass air flow sensor (B2/5) as far back as possible so that the lock (6) cannot latch again.
8	Use a screwdriver to press down lock (8) on the air intake connection (7)	To do this, push the hot film mass air flow sensor (B2/5) as far back as possible so that the lower lock (8) cannot latch again.
9	Remove hot film mass air flow sensor (B2/5) from intake manifold	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 locks and replace lock or air intake connection (7) if required.
10	Unclip the pneumatic line of the AIR management control system from the brackets at the air intake connection (7)
11	Install in reverse order
12.1	Read out fault memory and erase if required	Only when replacing the hot film mass air flow sensor (B2/5).
	Connect up STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS, diagnosis system	*WH58.30-Z-1048-13A
	Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns when working in engine during starting procedure	Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
13	Conduct engine test run and check the intake system for leaks	If a leak is found, determine the cause and rectify it otherwise engine malfunctions may result.

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Number	Designation
WH58.30-Z-1048-13A	STAR DIAGNOSIS, diagnosis system; Compact Passenger Car	6511 1801 00