Remove/Install Brake Booster Vacuum Sensor - AR43.10-P-0352LF

Model 217, 222 

Shown on model 222 

Fig 1: Brake Booster Vacuum Sensor Components Location - Model 222

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Switch off ignition and remove transmitter key
2	Push down brake pedal several times	In order to reduce the given vacuum in the BAS brake booster (A7/7).
3	Remove cover over brake fluid expansion reservoir
4	Release and disconnect electrical connector (1) from brake vacuum sensor (B64/1)
5	Pry brake vacuum sensor (B64/1) out of BAS brake booster (A7/7)	Make sure that the seal plug and brake vacuum sensor (B64/1) are seated correctly. Check seal plug for damage. Mounting wedge	Fig 2
6	Install in the reverse order
	Check
7	Start engine and depress brake pedal several times
8	Turn off engine
9	Check leaktightness of brake vacuum sensor (B64/1)	Air flow noises must not be audible at the BAS brake booster (A7/7).

Fig 2: Identifying Mounting Wedge (110 589 03 59 00)

Courtesy of MERCEDES-BENZ USA