NHTSA ID Number: 11027901
Manufacturer Communication Number: NCU - 2025110008 / 251108
TSB/Document Date: 2026-01-31
Summary
Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the drivetrain control unit software does not correspond to the series production configuration. Vehicles with incorrect software might not meet emission or OBD certification requirements. Moreover, potential influence on the exhaust emissions cannot be ruled out. MBUSA will conduct an emission service campaign. An authorized Mercedes-Benz dealer will update the engine control unit software on the affected vehicle.
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TSB/Document ID: NCU - 2025110008 / 251108
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-31
MFR Internal Campaign ID/Software Version:
Communication Type: Emissions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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Vehicle Compliance & Analysis
ATTENTION: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers & Parts Managers
Emission Service Campaign Notification
January 30, 2026
Campaign # / CA DMV #
Description
2025110008 / 251108
25P5496525
Update Drivetrain Control Unit
(PTCU) Software
Campaign Details
Total Population 609
Model(s)/
Platform(s)
Model Year(s) 2024
GLE (167)
Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain
subject vehicles, the drivetrain control unit software does not correspond to the series production
Issue configuration. Vehicles with incorrect software might not meet emission or OBD certification
requirements. Moreover, potential influence on the exhaust emissions cannot be ruled out.
Remedy
MBUSA will conduct an emission service campaign. An authorized Mercedes-Benz dealer will update
the engine control unit software on the affected vehicle.
Launch Date Affected VINs will be flagged as “OPEN” in VMI on January 30, 2026
Customer Notification
Timeline
Warranty Claim Notice
Customers will be notified via in-vehicle notification.
Please note the campaign will close after the warranty claim has been submitted. This change can
take at least one-day to reflect in NetStar VMI.
Notice to California Dealers: As required by 13 CCR 2117, a proof of correction (“POC”) certificate showing that the
vehicle has been repaired under this recall must be issued by the authorized service facility, and that such a certificate
may be required by California as a condition of vehicle re-registration or operation. Please reference this POC in the
attached work instructions. Failure to complete this step may result in fines and penalties and lead to customer
dissatisfaction.
While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and
customer satisfaction. Please refer all customer inquiries to the Customer Care Center at 1-800-FOR-MERCEDES.
Mercedes-Benz USA, LLC
One Mercedes-Benz Drive
A Mercedes-Benz Group AG Company
Sandy Springs, GA 30328
770.705.0600
January 2026
Rev. January 31, 2025
TO:
ALL MERCEDES-BENZ DEALERS
CAMPAIGN NO.
2025110008
CAMPAIGN DESC.
25P5496525
NHTSA ID
251108
SUBJECT
Update Drivetrain Control Unit (PTCU) Software
MODEL(S)
MODEL YEAR(S)
CAMPAIGN POPULATION
GLE (167 platform)
2024
609
Campaign Technical Instructions
Prior to performing this Campaign:
Check the Vehicle Master Inquiry (VMI) to verify this campaign applies to the specific vehicle!
1. Always check for other OPEN campaigns and perform them accordingly.
2. Review the entire campaign bulletin first and perform the procedures exactly as described.
California registered vehicles require a Proof of Correction Label and Certificate, according to California
Code Regulation Title 13, § 2117 - Proof of Correction Certificate.
Non-California dealers may perform the remedy on California registered vehicles, however, please direct
those customers to visit their preferred California dealership to receive the Proof of Correction Label and
Certificate after the recall has been completed.
Revision Note(s):
Order No. P-SC-2025110008
2
UPDATE DRIVETRAIN CONTROL UNIT (PTCU) SOFTWARE
Model(s): 167
• Always use the latest XENTRY Diagnosis software release with all available add-ons.
• Follow the operation steps exactly as described in XENTRY Diagnosis.
• Use a charger to ensure sufficient power supply to the vehicle’s on-board electrical battery system
(greater than 12.5 V).
• If XENTRY Diagnosis is already connected to the vehicle, start with Work Procedure Step 2.
If two or more software updates or SCN codings are performed during a single workshop visit, operation items
02-4762 and 02-5058 may be invoiced only on one of the workshop orders.
Work Procedure
1. Connect XENTRY Diagnosis.
2. Update Control Unit “Drivetrain” (PTCU) software.
To do so, select menu item "Quick test view → N127 – Control unit “Drivetrain” (PTCU) → Adaptations →
→ Control unit update → Updating of control unit software".
Then follow the user guidance in XENTRY Diagnosis.
3. Disconnect XENTRY Diagnosis.
Warranty Information
Note: The following allowable labor operation should be used when submitting a warranty claim for this repair:
Damage
Operation
Code
Number
54 965 25
*
Description
Labor Time
(hrs.)
02-9334
Update Control unit “Drivetrain” (PTCU) software
(with XENTRY Diagnosis connected)
0.1
02-4762*
Connect/disconnect diagnostic system
(XENTRY Diagnosis)
0.1
02-5058*
Connect/disconnect starter battery charger
(with XENTRY Diagnosis connected)
0.1
Invoice operation item only once for each workshop Repair Order.
Note: Always check Xentry Operation Time (XOT) for the current OP-Code times. Labor times are subject to change
and updates may not be reflected in this document.
1
P-SC-2025110008
3
UPDATE DRIVETRAIN CONTROL UNIT (PTCU) SOFTWARE
Model(s): 167
The following step applies to California dealers only.
Apply the Proof of Correction Label (A 000 584 54 13) to the area shown in Figure 1. Complete the blank fields on the
label. Enter the unique “Campaign No.” (251108), your “Dealer Code”, and the “Date” of the repair using a black
permanent marker.
Note: Clean bonding surface prior to affixing label.
Figure 1
The following step applies to California dealers only.
Complete the Proof of Correction Certificate (A 000 584 42 14) (Figure 2) and enter the unique recall number (251108).
Scan and attach a copy of the completed certificate to the RO and provide the owner with the completed certificate.
Figure 2
California Proof of Correction Parts Information
Qty.
Part Name
Part Number
1
Proof of Correction Certificate (CA Dealers Only)
A 000 584 42 14
1
Proof of Correction Label (CA Dealers Only)
A 000 584 54 13
Warranty Information (California dealers please submit claim on a separate line of the same RO as the campaign)
Damage
Operation
Code
Number
212CA 00
02-0001
Description
Labor Time
(hrs.)
Apply Proof of Correction Label and completed Proof of Correction
Certificate
0.1
P-SC-2025110008
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