TECHNICAL SERVICE OPERATIONS

MAS003964 MCL 24-33
Circular Letter
FROM: Maserati TSO
TO: Maserati Network

Introduction to the new
Maserati Grecale Folgore

DATE: JULY 10, 2024

We are pleased to introduce the latest addition to the Maserati lineup. Developed at the Maserati
Innovation Lab in Modena, the Grecale Folgore is the company's first fully electric SUV. Folgore is the
name that identifies Maserati's electric range, embodying innovation, luxury, functional beauty, and
a vision that bridges past and future in Maserati's incomparable style.
The new Grecale Folgore will be available in a single version, capable of delivering up to 400 kW of
power and equipped with a 105 kWh battery.
This letter provides important guidelines for the technical management of the new Maserati Grecale
Folgore. For further details and general information regarding the entire Folgore range, please refer
to bulletin MAS003876 (or newer) and its subsequent revisions.

This document includes in detail:
•
•
•
•
•

Vehicle maintenance and periodic battery checks.
Indications of best practices and technical notes for Service.
Pre-delivery inspection checklist.
Activation of the technical team.
Unveiling tech-doc/diagnosis and special tools.

Please read and review this bulletin first before starting the procedure.
Contact your Regional AfterSales Manager (RAM) or the Technical Support Helpdesk if you have
any questions.

© 2024 Maserati North
America. Aftersales
www.maseratiusa.com

MAS003964

All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA

Page 1 of 8

1

Vehicle maintenance and periodic battery checks…………………………………………….2
1.1

12V Battery Inspection at PDI……………………………………………………………………2

1.2

Check/ restore 12V battery SOC...……………………………………………………………..2

2

Best practices in the workshop for service………………………………..……………………….3
2.1

Lifting the vehicle………………………………………………………………………………….3

2.2

Door opening………………………………………………………………………………………4

2.3

12V battery location………………………………………………………..…………………….5

2.4

Emergency start - dead battery……………………………………………….……………….5

2.5

Transmission Park Release……………………………………………………………………….6

3

Pre-Delivery inspection checklist…………………………………………………………………...7

4

Activation of the technical team……………………………………………………………………7

5

Technical Documents and Special Tools...………………………..………………………………8
5.1

5.2

Technical Information..…………………………………………………………………………...8
Special Tools…………………………………………………………………………………………..8

1 Vehicle maintenance and periodic battery checks
The specifics on the maintenance of the vehicles in stock are reported as usual in the dedicated
circular letter which undergoes periodic updates (MAS003825 and its subsequent revisions). In
particular, the new Maserati GranTurismo features require more restrictive 12V battery charge
status control logistics than other models in the Maserati family. The checks involve:
-

Performing a Battery test using the E-XTEQ MAXIMUS at PDI.
Performing a Battery test using the E-XTEQ MAXIMUS during the entire storage period.

1.1 12V Battery Inspection at PDI
Performing a Battery test using the E-XTEQ MAXIMUS at PDI.
Result = Battery is Good:
• Voltage 12.6V or above = PROCEED WITH LOGISTICS MODE REMOVAL
• Voltage 12.5V or below = RECHARGE THE BATTERY
Result = Battery is Bad:
•

REPLACE BATTERY

For more info about battery maintenance and
check procedures. Refer to “MAS003833 and
MAS003397 (Or Newer)

1.2 Check/ restore 12V battery State Of Charge (SOC)
Performing a Battery test using the E-XTEQ MAXIMUS during the entire storage period at Intervals
outlined in “MAS003825 MCL 24-13 MGNT And Maintenance Of Instock Maserati Vehicles”.

© 2024 Maserati North
America. Aftersales
www.maseratiusa.com

MAS003964

All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA

Page 2 of 8

TECHNICAL SERVICE OPERATIONS

Contents

The following chapter includes a list of best practices and technical notes for Maserati Grecale service;
this vehicle’s features require precautions that may otherwise not be noticed or highlighted while the
vehicle is undergoing normal operations in the workshop. First, please note that before driving an
electric vehicle inside the workshop environment, a series of specific checks must be carried out; all
the details are reported in the dedicated documentation.

2.1 Lifting the vehicle
The position of the lifting points is indicated by an inverted triangle stamped on the edge of the body;
there are also the vehicle side pads for interfacing the lift arms.

Front pad

Rear pad

Be careful about the lift arms geometry
to prevent damaging the vehicle during
the lifting operation. We recommend
removing all possible loads from the
vehicle (passengers, luggage, spare tire,
etc.) to increase the distance from the
ground (in case there are no air springs).
It is also recommended to use lift plates
with a flat surface on the lifter.

Please note that due to the proximity
between the rear lifting pads and the battery
pack, the use of special lift plates may be
necessary to assist the battery; the absence
of this precaution makes the safe
removal/installation of the HV battery
impossible due to interference between the
battery itself and the lifting arms. Please,
refers to bulletin MAS003533 (and its
subsequent revisions) for further information
or consult the supplier of the lifter for
compatibility checks.
NOTE: It is mandatory to use a lifter with
underground or upper cable gland to not
hinder the HV battery Removal/Installation
operation.

© 2024 Maserati North
America. Aftersales
www.maseratiusa.com

MAS003964

All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA

Page 3 of 8

TECHNICAL SERVICE OPERATIONS

2 Best practices in the workshop for service

Door Opening

The following diagram summarizes the instructions in the On-board Documentation concerning the
door opening controls:
From outside:
press the button
shown on the key
twice within 5
seconds or press
the button on
the hood

Opening using a
Bowden:
internal unlocking
lever located on
the driver's area
dashboard

From outside:
touch the inside
part of the
handle

From inside:
1. Emergency
opening
handle
2. Electronic
door
lock/unlock
button

From inside:
Press the button
on the headliner
front console

The tailgate is
moved
electronically

If the electric locks cannot be powered,
the key fob has an emergency
mechanical key that can unlock the
driver’s side door using a lock
corresponding to the handle itself, as
shown in the figure below:

Unlocking the High voltage battery
charging port door
To open the charging port door
(located on the rear left side of the
vehicle). Vehicle doors must be
unlocked. Press to release and open the
charging port door, the charging door
will open completely.

© 2024 Maserati North
America. Aftersales
www.maseratiusa.com

MAS003964

All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA

Page 4 of 8

TECHNICAL SERVICE OPERATIONS

2.2

TECHNICAL SERVICE OPERATIONS

If the charging cable does not unlock at the end of
the charging procedure, it must be unlocked
manually by operating a special emergency
unlocking device located on the left side of the
boot compartment.
For more information about correct procedures to
carry out, consult the Owner’s Manual.

2.3

12V Battery Management

The state of charge of the 12V battery is periodically monitored by the VDCM. If the battery voltage falls
below a certain threshold, the VDCM will recharge it, ensuring the battery remains charged. Therefore,
it is not necessary to de-energize the battery during vehicle downtime. However, the negative terminal
will need to be disconnected for certain repair services. Note that disconnecting the 12V battery does
not disconnect all electrical systems. Please refer to the Service Manual for further details.

12V battery access
The 12V battery is located in the front hood compartment. To access it, remove the cover to access
the battery posts. (shown below)

2.4

Emergency start - dead Battery

The 12V battery is periodically recharged by the HV (High Voltage) battery system; however, if the HV
battery SOC falls below a certain threshold, it will not maintain charging of the Low Voltage (LV)
battery. Consequently, discharging the 12V battery after a short time. Therefore, the vehicle cannot be
started or recharged if the HV and LV batteries are low or dead. It will be necessary to recharge the
12V battery first with an external source or replacement after which the HV battery can be
recharged/recovered using an external source via the HV charging port. Please note that this can only
be done if there are no faults related to the HV system and that the HV battery is not completely dead
or below a certain threshold. Please review the training material or the workshop manual in case of a
dead HV battery. To power the 12V battery using a suitable external source, use the connecting points
as shown below the positive directly on the battery post and the negative using the ground pin
located on the side:

© 2024 Maserati North
America. Aftersales
www.maseratiusa.com

MAS003964

All rights reserved. Reproduction or translation in
whole or in part is not permitted without
authorization from the publisher. Printed in USA

Page 5 of 8

Transmission Park Release (Front e-axle unlock)
TECHNICAL SERVICE OPERATIONS

2.5

To move the vehicle with the power off it is necessary to unlock the electric axle.
To this end, it is possible to activate the “Car Wash” mode as indicated below:
-

The vehicle must be on a level surface.

-

Start the electric motors.

-

Put the transmission in N (Neutral) by using the control on the dashboard.

-

Turn the engine off by pressing the START/STOP button.

The driver’s door must be closed during these steps. This condition lasts for about 15 minutes, after which
the transmission moves automatically to P (Park).
If it is not possible to start the electric motors, proceed as follows:
−

Perform Key ON (12V power supply required)

−

Deactivate the electric parking brake

−

With the brake pedal pressed, press the Neutral (N) button to deactivate the Park state (the
message is shown on the display)
Attention: in this state, it is not possible to turn the Key OFF; put the vehicle back into Park (P)
to be able to turn it off.

The front axle can also be unlocked mechanically by acting on a dedicated mechanism. To access this
mechanism, it is necessary:
−

Disconnect the 12V battery

−

Lift the vehicle

−

Remove the central underbody shield

−

Identify the mechanism on the axle (see circled area in the figure)

−

Remove the protective cap

−

Turn the release screw using a suitable 3mm hexagonal wrench

For further details, please
refer to the dedicated
procedure reported in
the workshop manual.
ATTENTION: The vehicle
cannot be towed on its
own wheels but can only
be pushed by hand or
with a vehicle pusher
(Maximum speed =8
km/h (5 mph) for a
maximum continuous
distance of 20 meters).

© 2024 Maserati North
America. Aftersales
www.maseratiusa.com

MAS003964

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 8

To support you in delivering the new Maserati Grecale Folgore, we have developed a specific
Checklist, adding new checks to test the new features and ensure that the customer can drive the
vehicle with maximum satisfaction. The Check Lists 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 vehicle during the PDI.
At the end of each vehicle 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 PDI or the contractual warranty period for product improvement or warranty claims
assessment purposes.

PDI procedure to carry out with MDEvo
The warranty start date and “Customer Mode” setting to be performed during PDI are described in
Circular Letter MAS003368 (and corresponding updates).

4 Activation of the technical team
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 assure 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. A warranty claim 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.

© 2024 Maserati North
America. Aftersales
www.maseratiusa.com

MAS003964

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 8

TECHNICAL SERVICE OPERATIONS

3 Pre-Delivery inspection checklist

5.1

Technical Information

TechDocs has been updated to include technical documentation for the new GranTurismo:
•
•
•
•
•

5.2

Parts catalog
Labor Times
Workshop Manual
Wiring Diagrams
Diagnostic Help

Special Tools

Maserati has created a set of special tools specifically for the new Grecale Folgore 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 ModisCS+ Special Tool Catalogue.
The tools created are listed below in the table:

Part Numbers

Description

900030927

HVB lifting equipment

900001696

HVB lifter rods interfaces

900001697

HVB Ground support equipment

900031096

Centering pin for inverter positioning on EDM

900030925

Rear axle removal equipment

900030924

Front axle removal equipment

900031019

Front/rear axle bench support brackets

900030922

Adapters for coolant circuits drain

900100007

Breakout box for high-voltage system voltage and insulation
measurements

900031020

Battery pack and battery cooling circuit leak tester

900031127

Plug kits for leak tester

900030810

Cable for HV battery off-board diagnosis

900031123

Differential Oil seal installation tool

900030923

Bev centering columns

Furthermore, how to use each tool will be detailed in the relative procedure in ModisCS+.

© 2024 Maserati North
America. Aftersales
www.maseratiusa.com

MAS003964

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 8

TECHNICAL SERVICE OPERATIONS

5 Technical Documents and Special tools