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Troubleshooting Mercedes-Benz mbrace® issues prior to replacement
Topic number

Ll82.95-P-059571

Version

1

Design group

82.95 Emergency call systems

Date

07-31-2014

Validity

All model vehicles with SA code 359 or 348 (MercedesBenz mbrace®)

Reason for change

Validity Extended.

Reason for block

Complaint:
Any complaint regarding Mercedes-Benz mbrace®.

Cause:
Various causes

Remedy:
Check the following three points BEFORE replacing LCT/PASS lmbrace®l control module:
Note: LCT is/was only available in the United States of America
1. Start Diagnosis session within XENTRY/DAS
If no diagnosis session can be established with the OTC control module (mbrace®), please follow the next steps:
Ensure your diagnosis tool (XENTRY/DAS) has the latest SW version and all addons installed.
Ensure that no other root cause (e.g. CAN bus not operative, no power, etc.) unables a diagnosis session.
In Xentry, you have to select the control module "DTA-mbrace® or TELEAID".
Depending on the mbrace generation, "DTA-mbrace or TELEAID (N123/4)" is displayed for LCT (mbrace 1),
"mbrace-mbrace (N123/4)" is displayed for PASS (mbrace 2). The system automatically recognizes one or the
other depending on the model line and model year.
If no communication can be established a timeout warning error is displayed.
If you abort the process while communication is being started, the diagnosis tool (XENTRY/DAS) will guide you
to the check section. There you will be asked to double check pinning and power feed, plug in/out the device
and retry, etc.
Verify that you can establish a diagnosis session with a known working mbrace® control module from a known
good vehicle
2. The mbrace® control module can be replaced if any of the following fault codes (DTCs) and preconditions apply:
PASS (mbrace 2):
B129COO PASS Telematics Module Internal: It shall lead to a direct replacement
LCT (mbrace 1) :
0000 Control unit Telecommunications is faulty
0662 Component internal transmitter and receiver unit in module is faulty.
0667 GPS error. However, if 0667 and 0669 (CAN overload indication) are both active, this should not trigger a
unit replacement. This might be a failure of the Head Unit.

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An mbrace® control module replacement is not allowed for any other fault code. Instead, please follow the list of recommended tests/indications in Xentry/DAS. If it is not possible to solve the issue:
3. Call your Service Provider Dealer Support with your vehicle information. Explain the issues you are currently facing
and request that they assist you with setting up the account properly.
Be prepared to provide the agent with the "Status of failed registration" and "operation condition" you are seeing in
Xentry (under Actual Values->Activation Status).
Please notify the Dealer Support BRFORE replacing the control module, so the Dealer support can remove the combination of previous device information.

Check the following four points AFTER replacing LCT/PASS fmbrace®\ control module:
1. Clear and detailed description of the issue. Some areas that have to be considered:
Which mbrace® functions are not working properly (internet, remote door lock, i/r-button, etc.)?
What behavior does the customer describe?
What happens when the the i/r-button will be pushed (do you hear any network announcement)?
Is it possible to initiate MB apps/ the internet browser?
2. A Quick test containing the list of active DTCs, and their environment information as per DAS/Xentry. This applies

for both LCT and PASS (mbrace 1 I mbrace 2).

3. For PASS (mbrace2) only: Please include the following parameters from the "Actual Values->Activation Status" menu in Xentry:

Operating condition: in-service/in-provisioning/out-of-service/transport mode/production mode
Status of failed registration
Progress of failed registration: on-going/completed
Working key: valid or invalid
additonally for China:
Data packet User name (SIP Packet Data VPDN)
EVDO User Name

Symptoms
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I SIM card is not detected
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I SIM card disabled
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Cannot be authorized
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Reauthorization fails
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Backup battery discharges
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Operates without obvious cause
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Poor reception
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I SOS button is nonfunctional
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I No/faulty vehicle position
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Activation/deactivation fails
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Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Cannot connect call
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Distorted sounds like a fax machine
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Recorded message/constant ring tone
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Busy signal/network message
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I No/faulty vehicle data
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Poor speech quality
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Telediagnosis button nonfunctional

Communication/information I Communication I Telematics service I TELEAID emergency call system I Stolen vehicle
tracking I No satellite reception
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I MB info nonfunctional
Communication/information I Communication I Telematics service I TELEAID emergency call system I Vehicle remole door unlock I Nonfunctional
Communication/information I Communication I Telematics service I TELEAID emergency call system I Vehicle remole locking I Nonfunctional
Communication/information I Communication I Telematics service I TELEAID emergency call system I Vehicle remole locking I Cannot be authorized
Communication/information I Communication I Telematics service I TELEAID emergency call system I Vehicle remole locking I Reauthorization fails
Communication/information I Communication I Telematics service I TELEAID emergency call system I Vehicle remole door unlock I Cannot be authorized
Communication/information I Communication I Telematics service I TELEAID emergency call system I Vehicle remole door unlock I Reauthorization fails
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Driver cannot be heard
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I Other party cannot be heard
Communication/information I Communication I Telematics service I TELEAID emergency call system I Stolen vehicle
tracking I No/faulty vehicle data
Communication/information I Communication I Telematics service I TELEAID emergency call system I Stolen vehicle
tracking I No/faulty vehicle position
Communication/information I Communication I Telematics service I TELEAID emergency call system I Stolen vehicle
tracking I Cannot connect call
Communication/information I Communication I Telematics service I TELEAID emergency call system I TELEAID function I SOS button flashes
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I Recorded message/constant ring tone
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I MB-Info button nonfunctional
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I Busy signal/network message

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Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I No/faulty vehicle data
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I No/faulty vehicle position
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I Operates without obvious cause
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I Cannot connect call
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I Poor reception
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I Poor speech quality
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I Driver cannot be heard
Communication/information I Communication I Telematics service I TELEAID emergency call system I MB lnformation I Other party cannot be heard
Communication/information I Communication I Telematics service I mbrace emergency call system (USA) I TELEDIAGNOSIS I Cannot be authorized
Communication/information I Communication I Telematics service I mbrace emergency call system (USA) I TELEDIAGNOSIS I E-mails are not received
Communication/information I Communication I Telematics service I mbrace emergency call system (USA) I Speed
Alert I Cannot be authorized
Communication/information I Communication I Telematics service I mbrace emergency call system (USA} I Speed
Alert I Alarm nonfunctional
Communication/information I Communication I Telematics service I mbrace emergency call system (USA) I Speed
Alert I Speed limit cannot be defined
Communication/information I Communication I Telematics service I mbrace emergency call system (USA) I Remote
horn and lights I Cannot be authorized
Communication/information I Communication I Telematics service I mbrace emergency call system (USA) I Remote
horn and lights I Nonfunctional
Communication/information I Communication I Telematics service I mbrace emergency call system (USA) I Remote
horn and lights I Vehicle does not beep horn and flash lights

Control unit/fault code
Control unit

Fault code

Fault text

OTA - mbrace or TELEAID
(N123/4) (XLCT} (GLK (204)
,C (204),SLK (172),E (212),
CLS (218),M (166),E (207},GL
(166))

-

-

OTA- mbrace or TELEAID
- Emergency call (N123/4)
(XLCTECL) (GLK (204),C
(204),SLK (172),E (212),CLS
(218),M (166),E (207),GL
(166))

-

-

OTA - mbrace or TELEAID
- MB Info I Breakdown assistance (N123/4) (XLCTSERV)

-

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i< EN RY
(GLK (204),C (204),SLK (172)
,E (212),CLS (218),M (166),E
(207),GL (166))

Validity
Vehicle
B (242, 246)

Engine

Transmission

•
•
•
•
•

SL (231)

•
•

SLK (172)

•

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

c (204)
c (205)
CLS (218)
E (207)
E (212)

G (463)
GL (166)
GLA (156)
GLK (204)
M (166)

s (217)
s (222)

•
•
•
•
•
•

•

Full model designation breakdown
Vehicle
156.902

Engine

Transmission

651.930

724.011

156.903

651.930

724.004

156.905
156.908

651.930
651.930

724.011
711.632

156.908

651.930

156.912

607.951

724.004
711.631

156.912

607.951
270.910
270.910

711.647
724.001

270.910
270.910

711.647
724.001

270.920

724.004

156.945

270.920

724.004

156.946

270.920

724.011

156.952

133.980

724.015

156.952
166.003

133.980

724.016

651.960

722.908

156.942
156.942
156.943
156.943
156.944

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©Copyright Daimler AG

724.021

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166.004
166.023

651.960
642.826

166.023
166.024
166.024
166.055
166.056
166.056

642.826
642.826
642.826
276.955
276.821
276.821

722.908
722.903
725.031
722.903
725.031
722.906
722.904
725.031

166.057

276.955

722.906

166.057
166.058
166.058
166.062
166.073
166.073
166.073
166.074

276.955
276.955
276.955
276.821
278.928
278.928
278.928
157.982

725.031
722.906

166.074
166.823

157.982

722.931

642.826
642.826

722.903
725.031

642.826
642.826
276.821

722.903
725.031
722.904
725.031
722.904
725.031
722.909

166.823
166.824
166.824
166.856
166.856
166.864
166.864
166.872
166.872
166.872
166.872

276.821
276.821
276.821
278.928
278.928

725.031
722.904
722.909
725.031
725.032
722.905

725.031

166.873

278.928
278.928
278.928

166.873
166.873

278.928
278.928

166.873
166.874
166.874

278.928
157.982
157.982

172.403
172.403

651.980
651.980

722.908

172.403

651.980

725.011

172.447
172.447
172.447

271.861
271.861
271.861

711.653
711.654

172.448

271.861

07-31-2014 8:54 PM
©Copyright Daimler AG

725.032
725.033
722.909
725.031
725.032
725.033
722.905
722.931
711.670

722.997
711.655

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){ENTRY
172.448
172.457

271.861
276.956

722.997

172.475

152.980

722.906