ar3231p0650a

Removing and installing level control valve unit

Type ar · topic 32.31 · version 0201 · 1998-06-05

Applies to: MODEL 129 with CODE (216c) Adaptive damping system (ADS II) with electronic level control

Where it sits

Function group 2 Chassis › 32 Suspension › 32.31 Level control with chassis lowering — Series 129

EinPAS 20 Chassis › 20.20 Level control › 20.20.31 Control block — Series 129

AR32.31-P-0650A

Removing and installing level control valve unit

24.3.95

MODEL 129 with CODE (216c) Adaptive damping system (ADS II) with electronic level control

Removing and installing level control valve unit

Connections of valve unit Y36/6

HA to rear axle spring actuator

VL to left front axle spring actuator

VR to right front axle spring actuators

LL from left spring strut leak oil line

LR from right spring strut leak oil line

P from pressure oil pump

T to oil reservoir

P32.31-0222-03

Removing and installing level control valve unit

P32.31-0209-09

Modification notes

30.9.97

High-pressure stretch hose in oil circuit

Work step 2

BT32.32-P-0001-01A

Removing, installing

Danger!

Risk of injury to skin or eyes due to hydraulic fluid spraying out under high pressure. Risk of poisoning due to consuming hydraulic fluid.

Before starting work on the hydraulic system, depressurize the system. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A

Installation

Replace self-locking bolts and nuts

1

Empty pressure oil system at front and rear axles

Installation: Fill pressure oil system at front and rear axles.

AR32.31-P-0630A

2

Disconnect pressure lines (HA, VR, VL, LL, LR, P, T) at rear axle height reduction valve (Y36/6)

*BA32.31-P-1001-06A

*116589001700

High-pressure stretch hose installed in oil circuit (ADS)

BT32.32-P-0001-01A

3

Disconnect electric cable (Y36/6x1) in right of engine compartment

4

Unscrew bolts (arrows) from bracket

*BA32.31-P-1002-06A

5

Install in reverse order

Level control valve unit

Number

Designation

Model 129 with electronic level control / ADS II

BA32.31-P-1001-06A

Pressure line level control on valve unit (reference value)

M101

Nm

14

M121

Nm

20

BA32.31-P-1002-06A

Bolt for securing valve unit to bracket (reference value)

Nm

10

Removing and installing level control valve unit

116 589 00 17 00

Box wrench

Referenced documents