Remove/install brake booster vacuum line - AR43.10-P-0355MCU

MODEL 451.3/4 with ENGINE 132.910 

Fig 1: Identifying Brake Booster Vacuum Line Remove/Install Components - Model 451.3/4 With Engine 132.910

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Push down brake pedal several times	To reduce any vacuum.
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
2	Raise vehicle using the vehicle lift and remove underfloor paneling	Cordless drill/driver, cordless drill
3	Remove bulkhead wall	In model 451.4	AR61.25-P-6600MCU
4	Compress retainer (2) and pull vacuum line of brake booster (1) off intake manifold (3)	: Check sealing rings, replace if necessary.
5	Unclip vacuum line of brake booster (1) from the brackets (4) on the underfloor
6	Pull vacuum line of brake booster (1) out of brake booster (5)	: Check grommet (6) and replace if necessary.
7	Pull out vacuum line of brake booster (1) between the frame-type integral support (7) and the underfloor towards the engine and remove	Do not kink vacuum line of brake booster (1) otherwise it may be damaged. Observe installation position of chafe protection (8) and routing of vacuum line of brake booster (1). : Pay attention to kink-free and chafe-free routing of vacuum line of brake booster (1).
8	Install in the reverse order