LI2700P073532

Shifting quality problems on TRANSMISSION
725.1 (9G TRONIC FACELIFT)
Topic number
LI27.00-P-073532
Version
1
Function group
27.00 - General
Date
8/25/21
Validity
MODEL 206/213/238/257/223 with TRANSMISSION
725.1 (9G TRONIC FACELIFT)
Reason for change
Complaint
If TRANSMISSION 725.1 (9G TRONIC FACELIFT) exhibits any "shift quality" concerns, various optimized diagnosis
procedures are available to you for selected vehicle model series with STAR3 architecture,
Cause
Various
Remedy
Despite this, the shift in question should be verified with XENTRY in the presence of the customer as a preparatory
measure.
In event of shift quality concerns, before the start of any repair or standard adaptation, the latest quick test, the transmission control unit log and the EEPROM data should be read out as a txt file (*.txt). The EEPROM data must be
stored separately on a data medium (USB stick) as it can no longer be reproduced after adaptation has been performed.
Before creating a PTSS case always check that the engine and transmission control unit as well as the dependent
powertrain control units (e.g. CPC3, DCDC48EVO1, ISG48V2, LIB48_223) have the latest software release, and update them, if necessary, then perform another test drive.
Note: The latest version of the XENTRY (including all available add-ons) must be used for programming the transmission and engine control unit. Only then can it be ensured that the very latest version of each software is installed.
If the concern still persists, the creation of a CAN-FD measurement (successor to SD-SCAN for vehicles with STAR3)
may be necessary, when requested.
For this, the parts specified in the parts scope and the corresponding XENTRY versions / add-ons are required:
•
W000589002100 Test box 1
25.08.2021 15:40:25
© Copyright Mercedes-Benz AG
KATSELF
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•
W223589016300 Adapter cable for vehicles with STAR3
•
•
•
XENTRY 03/2021 with add-on 19516
XENTRY 06/2021 with add-on 19604
XENTRY 09/2021
Note:
•
•
For XENTRY 03/2021 and XENTRY 06/2021, the corresponding K matrix must be requested per PTSS case to
create a CAN-FD.
As from XENTRY 09/2021, the corresponding K matrix is integrated into XENTRY.
Symptoms
Power transmission > Automatic transmission > Function > Engaging process
Power transmission > Automatic transmission > Function > Shifts
Power transmission > Automatic transmission > Function > Slips
Power transmission > Automatic transmission > Function > Shifting is rough
Power transmission > Automatic transmission > Function > Shifting is not performed or is delayed
Power transmission > Automatic transmission > Function > Poor shift quality
Parts
Part number
ES1 ES2 Designation
Quantity Note
W000589002100
Test box
1
W223589016300
Adapter cable for vehicles with 1
STAR3
EPC
WS00.00-P0034B
X
WS54.00-P-0089B valid for STAR3
X
WIS-References
Document number
Title
Note
WS00.00-P-0034B
000 589 00 21 00 Test box
-
WS00.00-P0034B
223 589 01 63 00 Adapter cable
Valid for STAR3
Control unit/fault code
Control unit
Fault text
N15/15n1 - Transmission control for 9-speed transmission
(VGS)
Operation numbers/damage codes
Op. no.
Operation text
25.08.2021 15:40:25
© Copyright Mercedes-Benz AG
Time
KATSELF
Damage
code
Note
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