Checking vacuum line for clearance, installing chafe protection if necessary - SM43.10-P-0001A

MODEL 220.### ## as of 000359 up to 001391

Position of rubber grommet

The vacuum line for the brake booster is routed from the brake unit along the firewall to the engine intake pipe.

Fig 1: Locating Brake Vacuum Line

Courtesy of MERCEDES-BENZ USA

OPERATION NO. OF OPERATION TEXTS OR STANDARD TEXTS AND FLAT RATES

Division	Op. no.	Operation text
P	023179	RETROFITTING RUBBER GROMMET	Work unit: 4 work units	Accounting number: 00 902 01

	Checking
1	Check vacuum line for clearance	Min. > 20 mm in the area of the hot water hose clip, if the distance is less, chafe protection must be installed. If no chafe protection is fitted and the distance is < 20 mm proceed with ↓
	Removing, installing
2.1	Remove mass air flow sensor with air intake pipe.
3.1	Disconnect vacuum line on the intake pipe side.	Compress clamping ring on connector. The vacuum line must lock audibly in position in the clamping ring.
4.1	Install rubber grommet.	Push level with the hot water hose clip
5.1	Install in reverse order

PARTS ORDERING NOTE

Part no.	Designation	Quantity
123 987 02 41/05	Rubber grommet	1