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

Model 167 

with code 489 (AIRMATIC Dual Control/semi-active air suspension) 

with code 490 (Electrohydraulic suspension) 

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
Topical note	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
Topical note	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 pressure lines (3) of electrohydraulic suspension using guided diagnosis.		AR32.50-P-0042ME
2	Remove front left or right wheel and tire assembly.		AR40.10-P-1102ME
3	Unscrew screw/bolt (1) from bracket (2).	Screw, oil pressure line bracket to shock absorber	*BA32.50-P-1005-04A
4	Remove screws/bolts (4).	The socket wrench socket is to be used when a special bolt is installed.
		Screw, oil pressure line to shock absorber	*BA32.50-P-1004-04A
		Socket wrench bit	Fig 1
5	Remove lower engine compartment paneling.		AR61.20-P-1105ME
6	Remove bolts (5).	Screw, oil pressure line to hydraulic pump	*BA32.50-P-1003-04A
		Socket wrench bit	Fig 1
7	Clean area of hydraulic pressure line connections.	Do not use any cleaning agents or solvents.
8	Remove hydraulic pressure lines (3) of electrohydraulic suspension and seal exposed connections using suitable stop plugs.	Replace damaged sealing rings.
		Record plug	Fig 2
9	Collect escaping hydraulic fluid using suitable container.
10	Install in the reverse order.

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