Remove, install tumble flap position sensor at intake manifold - AR09.20-P-1995QB

ENGINE 272.920 in MODELS 203.052 /252 /752 

ENGINE 272.940 in MODELS 203.054 /254, 209.354 /454 

ENGINE 272.960 in MODELS 203.056 /256 /756, 209.356 /456 

ENGINE 272.970 in MODELS 203.087 /287 

ENGINE 272.941 in MODELS 203.092 /292 

ENGINE 273 in MODEL 209 

Fig 1: Identifying Tumble Flap Position Sensor At Intake Manifold Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, tailgates or sliding roof.	Keep body parts and limbs well clear of moving parts.	AS00.00-Z-0011-01A
	Notes on avoiding damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Turn key in ignition switch to position "0".
2	Open engine hood and raise to vertical position	Model 203	AR88.40-P-1000P
		Model 209	AR88.40-P-1000Q
3	Remove air filter housing		AR09.10-P-1150QB
4	Release and disconnect electrical connector (1) at left intake manifold tumble flap position sensor (B28/9) or right intake manifold tumble flap position sensor (B28/10)
5	Remove bolt (2)		*BA09.20-P-1002-01N
6	Remove left intake manifold tumble flap position sensor (B28/9) or right intake manifold tumble flap position sensor (B28/10) from resonance intake manifold (3)	Installation:  Replace the gaskets.
7	Install in the reverse order
8	Read out fault memory	STAR DIAGNOSIS system	*WH58.30-Z-1048-13A
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A