LI27.20-P-065533

Model series 205 NAG2 only for C450 AMG,
hard torque converter lockup clutch cut-in
Topic number
LI27.20-P-065533
Version
1
Design group
27.20 Torque converter
Date
01-13-2017
Validity
Model series 205 NAG2 only for C 450 AMG
Reason for change
Reason for block
Complaint:
In 1st and/or 2nd gear the torque converter lockup clutch cut-in may be hard. Complaint may occur in all transmission
modes.
Cause:
Possibly software application.
Remedy:
Update transmission software to A 000 902 68 31 then reset converter adaptation values and run new adaptation of
shifts and torque converter lockup.
The hard torque converter lockup clutch cut-in will not result in any consequential damage, do not replace any part.
Symptoms
Power transmission / Function / Jolting/shuddering during start-off
Power transmission / Automatic transmission / Function / Engaging process
Power transmission / Automatic transmission / Function / Shifting is rough
Power transmission / Automatic transmission / Function / Poor shift quality
Control unit/fault code
Control unit
Fault code
Fault text
Y3/8n4 - Fully integrated
transmission control (VGS)
(VGS4NAG2)
-
-
Operation numbers/damage codes
Op. no.
Operation text
01-13-2017 3:57 PM
© Copyright Daimler AG
Time
PARKEGL
Damage
code
Note
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5482S 45
01-13-2017 3:57 PM
© Copyright Daimler AG
PARKEGL
Software release for shift quality of
automatic transmission/dual clutch
transmission, hard shift
Page 2/2