Remove, install tumble flap position sensor to intake manifold - AR09.20-P-1995SX

ENGINE 272, 273 in MODEL 221 

ENGINE 273 in MODEL 216 

Fig 1: Identifying Tumble Flap Position Sensor Components

Courtesy of MERCEDES-BENZ USA

Shown on Model 221.071 with Active 

Body Control (ABC) Code 487 

	Remove/install
1	Turn key in ignition switch to position "0".	Vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until ignition is switched off. Remove Keyless Go transmitter card or transmitter key from the vehicle and store beyond transmitter range (min. 2 m).
2	Remove air filter housing	AR09.10-P-1150SX
3	Disconnect electrical connector (1) at left and right position sensor (B28/9 or B28/10)
4	Remove bolt (2)		*BA09.20-P-1002-01N
5	Pull left and right position sensor (B28/9 or B28/10) out of resonance intake manifold (3)	Installation:  Replace the gaskets.
6	Install in the reverse order
7	Read out fault memory with STAR DIAGNOSIS