Remove/Install Front Hydraulic Lines Of Electrohydraulic Suspension - AR32.50-P-0044S

Model 223 

with code 490 (Electrohydraulic suspension) 

MODIFICATION NOTES

09.09.2021	Screw, hydraulic line to suspension strut		BA32.50-P-1006-04B
07.12.2021	Bolt, hydraulic line to hydraulic pump		BA32.50-P-1005-04B

Courtesy of MERCEDES-BENZ USA

	Risk of injury  to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning  from swallowing hydraulic fluid.	Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
Notice	Information on E-ACTIVE BODY CONTROL suspension		AH32.50-P-0002-01ME
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove/install
1	Empty hydraulic lines (1) of electrohydraulic suspension using guided diagnosis.		AR32.50-P-0042S
2	Remove corresponding front wheel.		AR40.10-P-1102A
3	Remove rear fender liner at the front.	Model 223 with code 490 (Electrohydraulic suspension) Model 223.0/1 with code 490 (Electrohydraulic suspension)	AR88.10-P-1301S
4	Remove engine compartment lining.		AR61.20-P-1105S
5	Clean area of pressure line connections.	Do not use any cleaning agents or solvents.
6	Remove bolts (2).	Screw, hydraulic line to suspension strut	*BA32.50-P-1006-04B
		Socket wrench bit	Fig 1
7	Clean area of pressure line connections.	Do not use any cleaning agents or solvents.
8	Remove screw/bolts (3).	Bolt, hydraulic line to hydraulic pump	*BA32.50-P-1005-04B
		Socket wrench bit	Fig 1
9	Remove hydraulic lines (1) of electrohydraulic suspension and seal exposed connections with suitable stop plugs.	Collect escaping hydraulic fluid using suitable container. : Replace damaged sealing rings. Record plug	Fig 2
10	Install in the reverse order.

ELECTROHYDRAULIC SUSPENSION

Number	Designation			Model 223 with code 490 (Electrohydraulic suspension)
BA32.50-P-1005-04B	Bolt, hydraulic line to hydraulic pump	Stage 1	Nm	18
		Stage 2	∠°	45

ELECTROHYDRAULIC SUSPENSION

Number	Designation			Model 223 with code 490 (Electrohydraulic suspension)
BA32.50-P-1006-04B	Screw, hydraulic line to suspension strut	Stage 1	Nm	18
		Stage 2	∠°	45

Fig 1: Identifying Socket Wrench Bit (167 589 01 09 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA