MAS005111_A MTB 26-06
Other
Maserati Coolant Fluid Color Change. The previous pink coolant and the new purple coolant are fully compatible and may be mixed without affecting coolant quality, performance, or system behavior.
Vehicle report
2012 MASERATI GRANTURISMO
Service bulletins
58 bulletinsTechnical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
MAS005111 MTB 26-05
Other
Maserati Coolant fluid Color Change from pink to purple.
MAS005125 DS 26-07
Other
This Diagnostic Sheet provides updated diagnostic and repair guidance for a potential wheel hub clicking noise condition on M182 Grecale ICE vehicles (all model years). The procedures outlined are intended to assist technicians in accurately identifying and correcting axle shaft and wheel hub related noise concerns that may be present during low‑speed operation, reversing, or initial vehicle launch.
MAS005005 MCL 26-04
Other
A new software release “Jakarta 10.04.00” is now available for the MD and MDEVO/MDEVO2/MDEVO3. This update brings: • A new user interface for the software update application. • A cybersecurity layer that protects communication with diagnostic and update servers. Once installed, the cybersecurity layer runs in the background. The main change users will notice is how the software update client looks and behaves. To get the new update app, your diagnostic tools must complete installation of Jakarta 10.04.00 or higher.
MAS005035 MTB 26-01
Other
Maserati has created eight new special tools. These tools are mandatory and will be listed in the ModisCS+ Special Tools Catalog. Please also note that this catalog lists all the special tools already in use that are compatible and required for vehicle maintenance. Therefore, it is important to check this section to ensure the tools are available in your workshop.
MAS004937 MCL 25-05
Other
Management and Maintenance of New Maserati In-Stock Vehicles
MAS004996 MCL 25-54
Other
This bulletin provides guidance on proper storage practices for Maserati vehicles in dealer inventory to minimize deterioration of premium interior components (leather, wood and carbon fiber).
MAS004912 DS 25-33
Other
This bulletin provides updated diagnostic and repair instructions for identifying and addressing corrosion-related concerns in the low-pressure fuel pump on all Maserati models equipped with internal combustion engines (ICE).
MAS004915 MTB 25-40
Other
The purpose of this bulletin is to explain the behavior and function of the Load Shed system introduced in BCM Software 19.2 on Grecale, GranTurismo, and GranCabrio models. This system automatically reduces power to non-essential electrical features to protect battery health and ensure vehicle stability, especially during low battery charge or charging system issues.
MAS004918 MTB 25-39
Other
The purpose of this communication is to provide a guideline concerning the execution of ECU software updates (ECUs) and to clarify how the EVO checks the availability of software updates for the ECUs installed in the vehicle.
MAS004931 MTB 25-38
Other
This bulletin provides guidance to the authorized service network regarding a specific repair procedure applicable to the front axle transfer case. The intervention is intended to address a knocking noise that may occur during lowspeed directional changes (Drive to Reverse and vice versa). The procedure outlined below aims to eliminate the noise by reconditioning the flange-to-shaft interface and ensuring correct component alignment and lubrication.
MAS004919 DS 25-34
Other
This bulletin provides an updated diagnostic checklist for addressing concerns related to the TBM2 (Telematic Box Module) system on Maserati Grecale, GranTurismo, and GranCabrio vehicles. It includes detailed procedures for identifying and resolving issues based on specific customer concerns.
MAS004902 DS 25-32
Other
This bulletin provides updated diagnostic procedures for identifying and resolving issues related to the parking sensor system on select Maserati models. It outlines steps to verify sensor condition, identify false alerts, and determine when replacement or further support is necessary.
MAS004914 MCL 25-51
Other
The Rapid Update campaigns listed in the attachment will be closed according to the following schedule: Field Action LIST – 1° batch Campaign Number Campaign Description Closure Date 517 MCA TBM FOTA update 4.34 SQDF missing data 20/10/2025 529 MC20 MY22 coolant leakage from water pump (idler replacement) 20/10/2025 549 M161 V8 cavo motore L 20/10/2025 576 MC20 Door striker baseplate detachment 20/10/2025 585 MC20 MY22 Half Shafts Replacement 20/10/2025 Field Action LIST – 2° batch Campaign Number Campaign Description Closure Date 643 M240 sbiancamento guarnizione porta 12/12/2025 669 M189 Air Spring check 12/12/2025 684 M189 Leak from Air Spring - Extension 12/12/2025 689 M182 RFHM Repositioning 12/12/2025 705 M240 Tremec transmission leak 12/12/2025 712 M189 M190 MY24 - Air Suspension Full Customer Protection (ALLUMINUM SOL) 12/12/2025 715 M189 Multi-SW Updates Regrouping (BCM-CVPAMPLGM-BSM-ICS-IPC) 12/12/2025 720 M240 DCSD SW Update 12/12/2025 724 M240 ECM SW Update 12/12/2025 725 M189 M190 Multi-HW 12/12/2025 726 M182 Door to body 12/12/2025 727 GC Wrong TBM EMEA-NAFTA 12/12/2025 728 M189 BEV - Front HalfShaft screws loosening 12/12/202
MAS004943 MTB 25-42
Other
CVPAM Surround View System Diagnosis B228600
MAS004875 MCL 25-44
Other
The purpose of this communication is to clarify the correct procedure for checking the navigation system map version during Pre-Delivery Inspection (PDI). This ensures that the installed maps correspond to the vehicle’s destination country. MODELS AFFECTED: All Maserati models equipped with the factory navigation system.
MAS004817 MTB 25-34
Other
he purpose of this communication is to inform Maserati dealers that, in certain vehicle functions deactivated at the next Key-On after Key-Off cycle, normal behavior may be misinterpreted as a fault. Beginning with BCM software release 19.2 (March 2024), the Load Shed Function was introduced. This system is not a malfunction but an intentional feature that manages the 12V battery State of Charge by temporarily disabling or limiting non-essential functions. The goal is to reduce unnecessary discharge and preserve battery health. Examples include: • A/C system • Heated seats / heated steering wheel • Mirror and rear window defroster • Interior lights / ambient lights • Head-up display • Easy entry/exit
MAS004864 MTB 25-33
Other
This bulletin introduces the serviceability of the oil pump bearing on the V6 Nettuno engine. The bearing can now be replaced individually, eliminating the need for complete engine or long block replacement when noise is traced to this component. Models Involved: • Grecale V6 (All MY) • GranTurismo V6 / GranCabrio V6 (All MY) • MC20 / MC20 Cielo / MC20 Pura (All MY)
MAS004868 DS 25-28
Other
This Diagnostic Sheet serves as a guide and provides a diagnostic path to help determine the root cause of certain HVAC concerns. This Diagnostic Sheet requires a BOL to be submitted. MODELS: Grecale, GT/GC, MC20 (All MY) WHEN DEALING WITH HVAC CONCERNS SUCH AS “AC NOT BLOWING COLD,” DO NOT ASSUME IT IS DUE TO LOW REFRIGERANT.
MAS004834 DS 25-27
Other
This document outlines the correct diagnostic and evaluation procedure when oil traces or leakage are observed on front or rear shock absorbers. It aims to help technicians distinguish between acceptable oil sweating and genuine component leakage requiring corrective action. MODELS INVOLVED: ALL (All MY).
MAS004818 DS 25-24
Other
This bulletin provides a diagnostic checklist to identify, troubleshoot, and resolve issues related to the TBM2 (Telematics Box Module) system in Grecale, GranTurismo, and GranCabrio models. It outlines specific concerns associated with DTCs and step-by-step procedures to ensure accurate diagnosis and effective resolution of connectivity, communication, and hardware-related concerns. MODELS AFFECTED: M182 Grecale 2.0 L4 MHEV and M189 GranTurismo(All MY).
MAS004789 DS 25-19
Other
This diagnostic sheet is intended to assist technicians in identifying and differentiating engine oil leaks and sweating.
MAS004330 MCL 25-31
Other
The Rapid Updates (Campaigns) in the list below will be closed starting from June 16, 2025. Claims received after this date will no longer be accepted. 243 275 288 294 306 326 332 333 337 348 353 355 364 366 371 374 379 385 388 390 395 400 447 448 449 451 452 460 461 462 468 471 477 481 484 520 522 523 540 544 546 565 566 587 588 593 595 600 603 607 610 611 615 642 10272 10364 10443
MAS004589_A MTB 25-22
Service Bulletin/Repair Instructions
This bulletin provides clear instructions on how to perform a proper tightening torque check. Follow this procedure when requested or when analyzing the root cause of a fastener-related issue.
MAS004438_A MTB 25-16
Service Bulletin/Repair Instructions
This Technical bulletin serves as a diagnostic guide for managing oil leaks and instructing related repairs. This Bulletin requires a BOL to be opened as “Support Request”
MAS003730_A MTB 25-17
Other
The purpose of this communication is to provide a guideline concerning the execution of ECU software updates (ECUs) and to clarify how the EVO checks the availability of software updates for the ECUs installed in the vehicle.
MAS004711 MCL 25-25
Service Bulletin/Repair Instructions
The Rapid Updates (Campaigns) in the list below will be closed starting from May 12, 2025. Claims received after this date will no longer be accepted. Effective from the publication date of this document, the Mandatory Flag will be removed for all campaigns listed, allowing for easier management as we approach the closure period
MAS004704 MCL 25-24
Other
After 7 years from the introduction of the Maserati Diagnosi EVO 2 (2nd generation), we inform you that Panasonic can no longer guarantee the repair of the hardware, therefore the swap service (Warranty repair/replacement exchange) may be discontinued during 2025 following the exhaustion of replacement components in stock.
MAS004669 MTB 25-13
Other
Wheel Size Vehicle Config Update Info In case of rim replacement, which may involve the use of tires with a different rolling circumference, please note that a Proxy update is always required to adapt the Vehicle Configuration to the new wheel/tire combination fitted to the vehicle. Also remember that the required pressure can be different depending on the size of wheel rims/tires.
MAS004641 MTB 25-10
Other
This Technical bulletin serves as a guide and provides additional diagnostic info for possible Memory seat and or easy entry anomalies.
MAS004488 MCL 25-15
Other
This document provides general instructions for the storage of new vehicles, including the new GranTurismo. These instructions should be followed by the personnel responsible for managing Maserati vehicles prior to their final sale to customers. The updates pertain to the maintenance and care of MHEV vehicles equipped with lithium-ion batteries, as well as notes on routine maintenance to be conducted according to the Service Schedule (including engine oil). Additionally, new policies for checking the 12V battery state of charge, applicable only to Grecale, are also outlined.
MAS004589 MTB 25-08
Other
This Technical bulletin serves as a guide and provides info with the aim of providing indications about the proper way to perform a tightening torque check, in the case it is needed or requested. In order to allow a proper and effective analysis of the defective route cause.
MAS004578 MTB 25-05
Other
This Technical bulletin serves as a guide and provides info for certain anomalies reported in by customers on seat linings that can be mistakenly addressed as a product defect.
MAS004438 MTB 25-03
Other
This Technical information bulletin serves as a diagnostic guide for managing engine oil leaks and instructing related repairs.
MAS004490 MTB 24-30
Other
his Technical bulletin serves as a guideline and outlines requirements when considering a possible engine replacement on Maserati vehicles. Please refer to Bulletin “MAS004175 PNP 24-01 Light Engine - Long Block Repairs Under Warranty” for further information.
MAS004464 MCL 24-51
Other
As an essential component in the electrical system in Maserati vehicles, the battery plays a crucial role in ensuring reliable performance and safety. To help maintain battery peak condition, and ensure optimal performance, this bulletin covers important warranty policies, and guidelines for testing, maintenance, and diagnosis of batteries using the new E-XTEQ MAXIMUS battery charger/tester. Please refer to the most recently published “BOL Policy” and “Prior Approval Components List” to verify if a BOL Report is required for battery replacement.
MAS004419 MTB 24-35
Other
This technical bulletin provides guidance and additional information on normal shock absorber operations that are often mistakenly identified as defective. It establishes criteria for inspecting and diagnosing shock absorbers for potential leakage to help prevent the unnecessary replacement of non-defective components
MAS004283 MCL 24-38
Other
MDEVO Release 9.8.1 new features • New login interface • Active diagnosis introduction for Go direct function (only for BEV vehicles) • MY25 version for all vehicles, Hard Reset function (Active Diagnosis), specs update, general improvements.
MAS004226 BOL 24-20
Other
This Diagnostic Sheet serves as a guide and provides additional diagnostic info on how to diagnose possible engine misfires or irregularities, highlighting the importance of refraining from disassembling the Central (Pre-Chamber) spark plugs unless instructed to do so.
MAS003095 MTB 24-21
Other
This Technical bulletin serves as a guide and provides additional diagnostic info for possible steering wheel vibration when braking. This Bulletin serves as an ADDENDUM to MAS002731
MAS004104
Service Bulletin/Repair Instructions
Rapid Update 658 669 684 GranTurismo with new part numbers with the newly introduced aluminum-type design shock absorbers
MAS003821
Service Bulletin/Repair Instructions
Technical Information.
MAS002929
Service Bulletin/Repair Instructions
Daignostic Sheet.
MAS003792
Service Bulletin/Repair Instructions
Technical Information.
MAS003928
Service Bulletin/Repair Instructions
Circular Letter.
MAS003929
Service Bulletin/Repair Instructions
Circular Letter.
MAS003793
Service Bulletin/Repair Instructions
Circular Letter.
MAS003774
Service Bulletin/Repair Instructions
Technical Information
MAS003891
Service Bulletin/Repair Instructions
Technical Information.
MAS003904
Service Bulletin/Repair Instructions
Technical Information.
MAS003844
Service Bulletin/Repair Instructions
Diagnostic Sheet.
MAS003895
Service Bulletin/Repair Instructions
Technical Information.
MAS002067
Service Bulletin/Repair Instructions
Technical Bulletin- Brake Rotor Aesthetics
MAS001736
Service Bulletin/Repair Instructions
Technical Bulletin procedure for ECM Re-Flash for voluntary emissions recall #373.
MAS001338
Service Bulletin/Repair Instructions
New guidelines for use of Blue-On-Line technical support requests and warranty requests for authorization.
MAS001361
Service Bulletin/Repair Instructions
Notification of diagnostic server downtime for maintenance.
MAS001319
Service Bulletin/Repair Instructions
Notification of changes to the online documentation sites TechInt and TechDoc.
MTB-153
Service Bulletin/Repair Instructions
MASERATI: NEW PROCEDURE TO AVOID THE UNNECESSARY REPLACEMENT OF THE REAR HUB HOLDER. HELI-COIL INSTALLATION PROCEDURE ATTACHED IN THE BULLETIN. *KB
Reading this report
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.