NCU-2022100005

Internal
News Channel Update |
Vehicle Compliance & Analysis
TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers,
Service Managers, Parts Managers
RE: Emission Recall Campaign Notification
Update 48V ISG Control Unit Software
MY19-22 E, CLS, GLE, GLS, S & AMG GT-Class (213, 238, 257, 167, 223,
290 platforms)
FROM: Gregory Gunther, Department Manager, Vehicle Compliance and
Analysis, Engineering Services
DATE: March 23, 2023
IMPORTANT EMISSION RECALL CAMPAIGN INFORMATION
Please see the attached documents related to the campaign listed above.
Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FOR-MERCEDES.
Sincerely,
Gregory Gunther
Department Manager, Vehicle Compliance & Analysis
Mercedes-Benz USA, LLC
One Mercedes-Benz Drive
A Mercedes-Benz Group AG Company
Sandy Springs, GA 30328
770.705.0600
Internal
News Channel Update |
Vehicle Compliance & Analysis
Recall Campaign Launch Notification
March 23, 2023
Campaign No. :
CA DMV. :
Campaign Desc. :
2022100005
221005
21P5499623
Update 48V ISG Control Unit Software
This is to notify you of the Emission Recall Campaign LAUNCH notification to update the 48V Integrated Starter Generator (ISG) control
unit software in 62,629 Model Year (“MY”) 2019 - 2022 E, CLS, GLE, GLS, S & AMG GT-Class (213, 238, 257, 167, 223, 290 platforms). A
customer notification letter will be mailed to customers advising of this emission recall, which may generate questions. Affected VINs will
be flagged in VMI as “OPEN” on March 24, 2023.
Background
Issue
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined
that the affected vehicles may not meet current On Board Diagnostics (“OBD”) emissions
specifications. Under certain conditions, the permanent OBD fault code memory of the 48V
ISG control unit may not activate.
What We’re Doing
MBUSA will conduct a voluntary Emission Recall Campaign in which an authorized MercedesBenz dealer will update the software in the affected vehicles.
Parts
Parts are not required for this campaign since the remedy is software based.
Vehicles Affected
Vehicle Model Year(s)
Vehicle Model
2019-2022
E, CLS, GLE, GLS, S & AMG GT-Class (213, 238, 257, 167, 223, 290 platforms)
Total Recall Population
62,629
Vehicle Populations
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.
Next Steps/Notes
Customer Notification Timeline
A customer notification will be provided for this Emission Campaign. Customer letters
will be mailed on April 07, 2023.
AOMS/SOMS
AOMs – This campaign may generate questions from your dealers. Please forward
this notice to your dealers ASAP.
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 Assistance 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
Campaign No. 2022100005, March 2023
TO:
ALL MERCEDES-BENZ CENTERS
SUBJECT:
Model E, CLS, GLE, GLS, S & AMG GT-Class (213, 238, 257, 167, 223, 290)
Model Year 2019-2022
Update 48V ISG control unit software
Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on
certain Model Year 2019-2022 E, CLS, GLE, GLS, S & AMG GT-Class (213, 238, 257, 167, 223,
290), the affected vehicles may not meet current On Board Diagnostics (“OBD”) emissions
specifications. Under certain conditions, the permanent OBD fault code memory of the 48V ISG
control unit may not activate. An authorized Mercedes- Benz dealer will update the software in the
affected vehicles.
Prior to performing this Recall Campaign:

VMI must always be checked before performing campaigns to verify that the campaign is required
on a specific vehicle. Always check for any other open campaigns, and perform accordingly.

Please review the entire Recall Campaign bulletin and follow the repair procedure exactly as
described.
Please note that Recall Campaigns do not expire and may also be performed on a vehicle with a
vehicle status indicator.
Approximately 62,629 vehicles are involved.
Order No. P-RC-2022100005 This bulletin has been created and maintained in accordance with MBUSA-SLP
S423QH001, Document and Data Control, and MBUSA-SLP S424HH001, Control of Quality Records.
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Note:

Use Xentry 09/20 with all associated patches or higher.

Follow the steps exactly as described in Xentry.

Connect battery charger (battery voltage

Ensure all electrical consumers are switched-off.

In the event of software/SCN update issues, contact Star Diagnosis User Help Desk via. XSF ticket.

Refer to Star Diagnosis System (SDS) Best Practices Guide.
>12.5V).
Procedure
1. Connect XENTRY Diagnosis.
2. Update software of integrated starter alternator (“ISA”) control unit (N129).
To do this, select menu item "Quick test view
Adaptations
Control unit update
N129 Integrated starter alternator (ISA)
Updating of control unit software.
Then follow the user guidance in XENTRY Diagnosis.
Warranty Information
Operation: (02-5058) Connect/disconnect battery charger
(02-4762) Star Diagnosis System (SDS), Connect/disconnect
(02-9334) Update N129 Integrated starter alternator-Adaptations
Damage Code
Operation Number
02-9334
54 996 23
02-4762*
02-5058*
* Operation item may be invoiced only once for each workshop order
Labor Time (hrs.)
0.1
0.1
0.1
Note
Always check ASRA for the current OP-Code times. Labor times are subject to change and updates may
not be reflected in this document.
P-RC-2022100005
3
The following step applies to California dealers only.
Apply Proof of Correction Label (A 000 584 54 13) to area identified in Figure 1. Fill in the blank areas of
the label. The campaign number for the California Proof of Correction is unique and must be entered as
such (221005), 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.
Provide the owner with the completed and signed Proof of Correction Certificate (A 000 584 42 14) Figure 2,
after you scan a completed form and attach to the RO. The recall number for the California Proof of Correction
is unique and must be entered as such (221005).
Figure 2
California Proof of Correction Parts Information
Qty.
Part Name
1
1
Sheet (CA Dealers Only)
Label (CA Dealers Only)
Part Number
A 000 584 42 14
A 000 584 54 13
Warranty Information
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-RC-2022100005