LI07.61-P-077382

232 - CEL - P231A00 The Mixture Formation of Cylinder 7 is Erratic
Topic number
LI07.61-P-077382
Version
1
Function group
07.61 - ME fuel injection/ ignition system
Date
1/18/24
Validity
232 SL vehicles equipped with the M177 v8 engine
Reason for change
Complaint
Customer states check engine light is on
Cause
ME Software
Remedy
Software is available to correct this issue. Review the software numbers at the end of this text.
If none of the software numbers match what is on the vehicle: update the software, clear any codes and release the
vehicle.
If no update is available: create a TIPS case
If one of the software number pairs match what is on the vehicle and P231A00 is present: create a TIPS case
SOFTWARE NUMBERS:
All variants will have HW ID: A1779010606
OLD NEW
A1779022919 --> A1779023119
A1779039507 --> A1779033009
A1779039607 --> A1779033109
A1779039707 --> A1779033209
Symptoms
Power generation > Engine management > Indicator lamp > Engine diagnosis > lit
NaN.NaN.NaN NaN:NaN:NaN
© Copyright Mercedes-Benz AG
HENRAND
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Control unit/fault code
Control unit
Fault text
N3/10 - Motor electronics 'MRG1AMGV8' for combustion
engine 'M177' (ME) (MRG1AMGV8)
P231A00 - The mixture formation (cylinder 7) is erratic
and injector injection quantity adjustment is disabled. _
Operation numbers/damage codes
Op. no.
Operation text
NaN.NaN.NaN NaN:NaN:NaN
© Copyright Mercedes-Benz AG
Time
HENRAND
Damage
code
Note
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