LI32.50-P-075055

Malfunction Due To Dirt In The Electrohydraulic Suspension (eABS/eSuspension)
Topic number
LI32.50-P-075055
Version
1
Function group
32.50 - Active Body Control (ABC)
Date
7/11/22
Validity
Model series 167, 223 with SA 490/eABC
Reason for change
Complaint
Malfunction due to the ingress of dirt during the repair of the hydraulic system.
Cause
Cleaning instructions in WIS are not being sufficiently observed.
This can result in dirt entering the hydraulic system of the vehicle or the filling unit.
In subsequent filling/emptying procedures, the dirt is then transferred to another vehicle.
Remedy
Before removing/replacing an electrohydraulic pump unit or the associated hydraulic lines, as well as when removing
the electrohydraulic suspension struts, it is essential to thoroughly wash the underbody.
If the dust cap is missing/defective and if the filling valve in the interior is contaminated, the surrounding area must be
cleaned thoroughly.
The filling valve and the dust cap must be replaced after emptying the system (-> see WIS references in the attachment).
The WIS work instructions and WU default values are being expanded accordingly.
WIS-References
Document number
Title
Note
ar32.50-p-0009-01s
Remove/install service connection at
the shock absorber of the electrohydraulic suspension
if the dust cap is missing, the service
connection/connection fitting including
the dust cap must be replaced.
ar32.50-p-0009-01me
Remove/install service connection at
the shock absorber of the electrohydraulic suspension
if the dust cap is missing, the service
connection/connection fitting including
the dust cap must be replaced.
11.07.2022 17:44:35
© Copyright Mercedes-Benz AG
JKANTAR
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Symptoms
Chassis/suspension > Suspension/Dampening > Suspension System Function > Oil loss
Chassis/suspension > Suspension/Dampening > Active body control > Leakage > Oil leaks
Parts
Part number
ES1 ES2 Designation
Quantity Note
EPC
A0003280000
CONNECTION FITTING front
left and right
1
if the dust cap is missing, the corresponding connection fitting and the
dust cap must be replaced
X
A0003280000
CONNECTION FITTING front
left and right
1
if the dust cap is missing, the corresponding connection fitting and the
dust cap must be replaced
X
A0003230401
DUST CAP front left and right
2
if the dust cap is missing, the corresponding connection fitting and the
dust cap must be replaced
X
Operation numbers/damage codes
Op. no.
Operation text
Time
Damage
code
Note
32c0d
32r0d
32w03
32h03
11.07.2022 17:44:35
© Copyright Mercedes-Benz AG
JKANTAR
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