Unusual handling characteristics caused by random sprung mass vibrations
Topic number

LI32.50-P-064467

Version

1

Design group

32.50 Active body control (ABC)

Date

07-14-2016

Validity

Model 222 and model 217 with code 487 (ABC)

Reason for change
Reason for block

Complaint:

Customer may complain of unusual handling characteristics caused by random sprung mass vibrations.

Cause:

Acceleration sensors may have been installed which could cause fault codes to be stored or unusual handling characteristics to occur. See the label on the sensor in the attachment.

Remedy:

1. Read out the fault code. If a fault code is displayed, replace only the affected acceleration sensor.
2. If complaint persists, change both acceleration sensors at the front axle and check the handling characteristics. If
complaints persists, replace the acceleration sensor at the rear axle.

Symptoms
Chassis/suspension / Suspension/Dampening / Active body control / Function / Regulates without obvious cause

Control unit/fault code
Control unit

Fault code

Fault text

N51/2 - Active Body Control
(ABC) (ABC222)

C154601

The left front acceleration sensor has a malfunction. There is a
general electrical fault.

N51/2 - Active Body Control
(ABC) (ABC222)

C154E08

The left rear acceleration sensor has a malfunction. There is a signal fault or the message is faulty.

N51/2 - Active Body Control
(ABC) (ABC222)

C154E09

The left rear acceleration sensor has a malfunction. There is a
component fault.

N51/2 - Active Body Control
(ABC) (ABC222)

C154E64

The left rear acceleration sensor has a malfunction. There is an
implausible signal.

N51/2 - Active Body Control
(ABC) (ABC222)

C154608

The left front acceleration sensor has a malfunction. There is a signal fault or the message is faulty.

N51/2 - Active Body Control
(ABC) (ABC222)

C154609

The left front acceleration sensor has a malfunction. There is a
component fault.

07-14-2016 2:09 AM
© Copyright Daimler AG

MANSFIJ

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N51/2 - Active Body Control
(ABC) (ABC222)

C154664

The left front acceleration sensor has a malfunction. There is an
implausible signal.

N51/2 - Active Body Control
(ABC) (ABC222)

C154A01

The right front acceleration sensor has a malfunction. There is a
general electrical fault.

N51/2 - Active Body Control
(ABC) (ABC222)

C154A08

The right front acceleration sensor has a malfunction. There is a
signal fault or the message is faulty.

N51/2 - Active Body Control
(ABC) (ABC222)

C154A09

The right front acceleration sensor has a malfunction. There is a
component fault.

N51/2 - Active Body Control
(ABC) (ABC222)

C154A64

The right front acceleration sensor has a malfunction. There is an
implausible signal.

N51/2 - Active Body Control
(ABC) (ABC222)

C154E01

The left rear acceleration sensor has a malfunction. There is a
general electrical fault.

Parts
Part number

ES1 ES2 Designation

A 000 905 76 00

Quantity Note

Acceleration sensor

EPC

3

X

Attachments
File

Description

Beschleunigungssensor.jpg

Field 6 (XX W YY) on the sensor contains the affected
batches.
The following batches are affected:
16 W 16
16 W 18
16 W 19
16 W 20

Operation numbers/damage codes
Op. no.

Operation text

Time

Damage
code

32-8545

REPLACE LEFT FRONT BODY ACCELERATION SENSOR (AFTER CHECK)

32F04 52

32-8546

REPLACE RIGHT FRONT BODY
ACCELERATION SENSOR (AFTER
CHECK)

32U04 52

32-8547

BODY ACCELERATION SENSOR AT
REAR AXLE

32571 52

54-0650

12V

54-1011

QUICK TEST

Note

Attachments

07-14-2016 2:09 AM
© Copyright Daimler AG

MANSFIJ

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Beschleunigungssensor.
jpg:

07-14-2016 2:09 AM
© Copyright Daimler AG

MANSFIJ

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