NHTSA ID Number: 11020990
Manufacturer Communication Number: MAS004783 MCL 25-39
TSB/Document Date: 2025-07-30
Summary
The new Parts & Service mission aims to ensure a unique customer experience. A few important guidelines for the technical management of the New Maserati
Grecale are set out in this letter. Maserati Grecale represents the right balance between versatility, elegance, performance, and innovation, guaranteeing services, comfort, and safety at the same time; features that combine with off-road capabilities and steadfast driving pleasure. The new MY23 Grecale SUV, developed at Maserati Innovation Lab in Modena, is a range within the range, the most complete and innovative ever in the House of the Trident. The range of available engines varies from the traditional combustion to the hybrid engine and includes three launch versions: GT, powered by a 4-cylinder Hybrid capable of developing 300 HP, Modena with a 330 HP 4-cylinder Hybrid engine, and the powerful Trofeo, equipped with a performing 530 HP 3.0L V6 engine, derived from the Neptune engine which equips MC20.
Lift the car just enough to be able to reach the inside central area
Identify the automatic transmission and the release actuator lever
© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com
MAS004783
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 6 of 11
TECHNICAL SERVICE OPERATIONS
Warning: the transmission unblock lever actuator is not in the car: you need to use an M6 screw
at least 32.4 mm long.
3 Pre-Delivery Inspection Checklist
To support you in delivering the new Maserati Grecale, we have developed a specific Checklist,
adding new checks to test the new features and ensure that the customer can drive the car with
maximum satisfaction. In addition, some policies regarding the control of the charge status of the 12V
battery have been modified. The Checklists are attached to this communication.
The Checklist will guide you through the various stages of vehicle inspection and preparation. Each
Checklist includes a set of actions and procedures to be carried out on each car during the PDI.
At the end of each car preparation, we ask you to keep a copy of the Checklist, signed by the
operator who has performed the checks, to support process traceability that could be helpful to
improve the quality of the service offered, where necessary. Maserati could also request a copy of the
same during the contractual warranty period for statistical purposes for its product improvement
processes.
3.1 Procedure performed with the MEVO
Setting the vehicle in “Customer Mode” to be performed at the POI stage is set out in Circular
Letter MAS003184 (Or newer).
© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com
MAS004783
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 7 of 11
A cross-functional Technical Team has been established, comprising individuals from Product Support,
Engineering, Quality, Spare Parts, Customer Care, and RAM departments. In addition to introducing
innovative technical content, the team is dedicated to offering comprehensive support for accurate
diagnosis and resolution during initial interventions within the network. Furthermore, they aim to
conduct swift and effective investigations into all reported anomalies. For details on submitting BOLs
to report anomalies, please consult the latest "Blue On Line Policy Update" Bulletin.
To monitor the correct progress of the vehicle repair on new models and ensure corrective action for
anomalies found during PDI. Maximum care is required in manually setting the Service Entry status.
Please also remember that the Service Entry status is automatically set up in "Awaiting Spare Parts"
when the parts to be replaced are related to interventions covered by the contractual warranty and
ordered in VOR mode. With a view to product improvement and to allow Maserati to improve the
diagnostic effectiveness, you will also need to analyze promptly the defective components replaced.
For this purpose, applying the following indications for the entire duration of the Technical Team is
required:
1. Warranty claims must be entered within two working days of closing the Service Entry.
2. Components replaced and requested for urgent return must be sent within two working days of
receiving the request. Please refer to the Maserati warrant urgent parts return bulletin in Modis for
details.
5 Technical Documents, Electronic Diagnosis, and
Special Tools
5.1
Technical Information
TechDocs has been updated to include technical documentation for both Grecale Hybrids (GT
and Modena) and the Grecale V6 (Trofeo):
•
•
•
•
•
5.2
Parts catalog
Labor Times
Workshop Manual
Wiring Diagrams
Diagnostic Help
New GUI MDEVO for Grecale
With the new Maserati Grecale launch, MDEVO introduces a new GUI (Graphical User
Interface) specifically for the new generation of vehicles.
© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com
MAS004783
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 8 of 11
TECHNICAL SERVICE OPERATIONS
4 Activation of the Technical Team
Vehicle view
TECHNICAL SERVICE OPERATIONS
5.2.1
The new Vehicle View for Maserati Grecale (M182) appears as in the figure below:
The new view allows you to identify all the vehicle's internal CAN and CAN-FD networks.
Five sections are inside the Vehicle View:
1. Topological view: a view of all the ECU, CAN, and CAN-FD connections
2. Zoom function: to enlarge, reduce, and restore the topological view
3. ECU list: lets you order the ECU according to the different filters (alphabetical, upgrades,
errors, and nodes)
4. ECU groupings: This allows you to highlight the selected ECU functional unit (transmission,
engine, ADAS, etc.)
5. ECU research: the control unit is highlighted in the topological view while the others are
darkened.
By selecting the ECU, you can access the control unit’s standard section to follow diagnostic
operations (basic diagnosis, active, procedures, programming, reading, and deleting DTC).
© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com
MAS004783
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 9 of 11
PROXI unaligned between the vehicle and server
The new GUI shows all the control units available for the Maserati Grecale, making those.
Not present in the identified vehicle configuration, transparent, and unselectable.
TECHNICAL SERVICE OPERATIONS
5.2.2
If the PROXI (Vehicle Configuration) readings on BCM are different from the ones on the
server, all ECUs will be displayed as selectable.
For alternative control units, such as ECM V6 (ICE) and ECM L4 (MHEV), selecting the
functional control unit (ECM) will open a pop-up that will allow you to choose the correct
one, thus accessing the standard section to perform the diagnostic operations.
© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com
MAS004783
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 10 of 11
5.3
Special tools
TECHNICAL SERVICE OPERATIONS
Maserati has created a set of special tools specifically for the new Grecale to ensure the
Highest levels of quality in driving assistance and safety. Such mandatory tools will be supplied.
Automatically and will also be present on the ModisCS+ Special Tool Catalogue.
The tools are listed below in the table, along with a brief technical description:
P/N
900030610
Name
Rear axle removal tool upgrade
900030611
900030612
900030613
900030614
900030616
900084528
900030617
Engine-transmission removal tool upgrade
Tool for transmission oil filler cap
Assembly tool for brake pad springs
L4 engine lifting brackets
V6 engine lifting brackets
Engine mount on TRANSMISSION SIDE
Engine mount on SERVICES SIDE
Hybrid
Hybrid
Hybrid
ICE
ICE
ICE
900030807
M182 Car Bench Template Kit
Hybrid/ICE
900030806
M182 Global Jig Template Kit
Hybrid/ICE
900030739
Flex plate locking tool V6
ICE
900030737
Belt tensioner
Hybrid
900084527
Upper oxygen sensor tightener
ICE
900030741
Chain tensioner pin
Hybrid
How to use each tool is detailed in the relevant repair procedure via TechDocs.
-
Engine-transmission towing tool upgrade (900030610): This front towing tool upgrade will be used for assembling
and disassembling the engine and transmission for both engine versions.
-
Rear axle towing tool upgrade (900030611): This rear axle towing tool upgrade will be used for assembling and
disassembling the rear suspension chassis for both engine versions.
-
Transmission oil filler cap tool (900030612): This tool will be used to unscrew and re-tighten the Hybrid variant
transmission oil cap.
-
Brake pad spring assembly tool (900030614): This tool will be used to assemble and correctly position the Hybrid
variant front brake pad spring.
-
L4 engine lifting brackets (900030614): This tool will allow you to lift the 4-cylinder engine, holding it in suspension
with suitable equipment.
-
V6 engine lifting brackets (900030616): This tool will allow you to lift the 6-cylinder engine, holding it in suspension
with suitable equipment.
-
TRANSMISSION SIDE Engine Mount (900084528): This tool will allow you to bench install the 6-cylinder engine from
the transmission side.
-
SERVICE SIDE engine support (900030617): This tool will allow you to bench install the 6-cylinder engine on the service
side.
-
M182 Car Bench Template Kit (900030807): This kit, to be used with the templates already in the workshops’
possession, will allow you to check and repair the vehicle's bodywork correctly for both engine versions.
-
M182 Global Jig Template Kit (900030806): This kit, to be used with the templates already in the workshops’
possession, will allow you to check and repair the vehicle's bodywork correctly for both engine versions.
-
V6 Flex Plate Lock (900030739): This tool will allow you to lock the V6 engine flex plate.
-
Belt tensioner (900030737): This tool will allow you to replace the Hybrid engine service belt.
-
Upper oxygen sensor tightener (900084527): This tool will allow you to tighten the V6 engine oxygen sensors to the
correct torque.
-
Belt Tensioner pins (900030741): This tool will allow you to lock the Hybrid engine chain tensioners
correctly.
© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com
MAS004783
All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA
Page 11 of 11
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TSB/Document ID: MAS004783 MCL 25-39
Replacement Service Bulletin Number:
MFR Communication Date: 2025-07-25
MFR Internal Campaign ID/Software Version:
Communication Type: Other
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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