NHTSA ID Number: 11028692
Manufacturer Communication Number: LI32.35-P-079965
TSB/Document Date: 2026-02-10
Summary
Complaint Model Year 2019-2022 167 (GLE/GLS) - Instrument Cluster Message for Suspension "Do Not Drive Over 50MPH" with or without Illumination of Check Engine Light with DTC's C10159A (A108/2, A108/3) and P0AFB00 (N129) Cause PTCU software robustness. Remedy Check N127 - PTCU (Powertrain Control Unit) hardware and software numbers. If software number matches a "Hardware Number" and "Predecessor Software #", update software. If software number is not shown in "Predecessor Software #" and condition exists, open a TIPS case to the High Voltage/ Low Voltage inbox.
Model Year 2019-2022 167 (GLE/GLS) - Instrument Cluster Message for Suspension "Do Not Drive Over 50MPH"
with or without Illumination of Check Engine Light with
DTC's C10159A (A108/2, A108/3) and P0AFB00 (N129)
Topic number
LI32.35-P-079965
Version
1
Function group
32.35 - Stabilizer
Date
2/9/26
Validity
167 with option code 465 (Electric Active Roll Stabilization)
167 with M176 or M177 and ISA generation 1
Reason for change
Complaint
Model Year 2019-2022 167 (GLE/GLS) - Instrument Cluster Message for Suspension "Do Not Drive Over 50MPH"
with or without Illumination of Check Engine Light with DTC's C10159A (A108/2, A108/3) and P0AFB00 (N129)
Cause
PTCU software robustness.
Remedy
Check N127 - PTCU (Powertrain Control Unit) hardware and software numbers.
If software number matches a "Hardware Number" and "Predecessor Software #", update software.
09.02.2026 23:22
© Copyright Mercedes-Benz
AG
SAHARRY
Page 1 / 3
If software number is not shown in "Predecessor Software #" and condition exists, open a TIPS case to the High Voltage/Low Voltage inbox.
Attachments
File
Description
Software Update Table.png
N127 Software Number Check.png
09.02.2026 23:22
© Copyright Mercedes-Benz AG
SAHARRY
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Disclaimer
NOTE: The information contained in this document is intended for use by trained, professional technicians with the
knowledge to properly and safely perform diagnosis and repairs on Mercedes-Benz vehicles, using Mercedes-Benz
approved tools and equipment. It informs service technicians about conditions that could occur in certain vehicles and
provides information that could assist in proper vehicle diagnosis, service, or repair. It does not indicate that a defect
is present in any vehicle referenced in this document nor does it imply warranty coverage. DO NOT assume that a
symptom or condition, or a described cause of a symptom or condition, affects any particular vehicle or groups of vehicles, or that a described repair applies to any particular vehicle or groups of vehicles. There can be multiple causes
resulting in the same or similar symptoms or conditions described in this document, and trained professional service
technicians must use their diagnostic skills to make evaluations on a case-by-case basis. The information contained
in this document does not guarantee warranty coverage nor does it extend the vehicle’s warranty in any way.
Symptoms
Chassis/suspension > Suspension/Dampening > Suspension System Function > Indicator lamp is on
Power generation > Engine management > Indicator lamp > Engine diagnosis > lit
Chassis/suspension > Suspension/Dampening > Roll control > Malfunction
Control unit/fault code
Control unit
Fault text
A108/3 - Active roll stabilization REAR (Roll control)
(EARS167_R)
C10159A - Control unit 'Active roll stabilization' has a malfunction. The operating conditions for the component or
the system are not satisfied.
A108/2 - Active roll stabilization FRONT (Roll control)
(EARS167_F)
C10159A - Control unit 'Active roll stabilization' has a malfunction. The operating conditions for the component or
the system are not satisfied.
N129 - Integrated starter alternator (ISA) (ISG48V1)
P0AFB00 - The power supply of the high-voltage onboard electrical system is too high. _
Operation numbers/damage codes
Op. no.
Operation text
09.02.2026 23:22
© Copyright Mercedes-Benz AG
Time
SAHARRY
Damage
code
Note
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TSB/Document ID: LI32.35-P-079965
Replacement Service Bulletin Number:
MFR Communication Date: 2026-02-09
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SUSPENSION
MFR Component System:
MFR Component Subsystem:
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