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Service bulletins for the 2021 Maserati Quattroporte

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

113 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
MAS004789 DS 25-192025-07-18. Other. ENGINE; UNKNOWN OR OTHER. This diagnostic sheet is intended to assist technicians in identifying and differentiating engine oil leaks and sweating.
MAS004675_A DS 25-212025-07-18. Other. SUSPENSION. This bulletin provides technical guidance for diagnosing and resolving creaking noises from the lower front suspension arm on Ghibli (M157), Quattroporte (M156), and Levante (M161) models. These noises may occur during low-speed manoeuvres, over bumps, or on uneven roads.
MAS004330 MCL 25-312025-06-30. Other. UNKNOWN OR 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
MAS004745 MTB 25-212025-06-17. Other. ENGINE; UNKNOWN OR OTHER. Some vehicles may experience oil leakage from a threaded insert that may be causing a leak in the engine oil pan. This bulletin provides the repair steps to replace the insert and avoid replacing the entire oil pan. MODELS AFFECTED: - Quattroporte (M156) - Ghibli (M157) - Levante (M161) *All with V6 engines only*
MAS004589_A MTB 25-222025-06-17. Service bulletin. UNKNOWN OR OTHER. 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 25-162025-06-17. Service bulletin. ENGINE; UNKNOWN OR OTHER. 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”
MAS004735 MCL 25-282025-06-02. Service bulletin. UNKNOWN OR OTHER. Stop Field Action. The Rapid Updates (Campaigns) in the list below will be closed starting from May 26, 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. Campaigns included are 411 and 636
MAS004711 MCL 25-252025-06-02. Service bulletin. UNKNOWN OR OTHER. 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
MAS003730_A MTB 25-172025-06-02. Other. UNKNOWN OR 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.
MAS004704 MCL 25-242025-05-16. Other. UNKNOWN OR 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.
MAS004703 MTB 25-152025-05-16. Other. UNKNOWN OR OTHER; ENGINE. This Technical bulletin serves as a guide and provides additional diagnostic info to update the engine oil level displayed on the ICS (Integrated Center Stack) for Grecale Hybrid Vehicles and GranTurismo, GranCabrio, and Grecale Trofeo versions
MAS004438_A MTB 25-162025-05-16. Other. UNKNOWN OR OTHER; ENGINE. his 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”.
MAS004711 MCL 25-252025-05-16. Other. UNKNOWN OR OTHER. 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.
MAS004675 DS 25-102025-04-24. Other. UNKNOWN OR OTHER; SUSPENSION. Noise from the front suspensions while maneuvering. his Diagnostic Sheet serves as a guide and provides additional diagnostic info for possible front suspension anomalies.
MAS004669 MTB 25-132025-04-24. Other. UNKNOWN OR OTHER; WHEELS. 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.
MAS004649 MTB 25-122025-04-01. Other. UNKNOWN OR OTHER; POWER TRAIN. Special tool (P/N 900029716) for inserting oil seals into the gearbox.
MAS004488 MCL 25-152025-04-01. Other. UNKNOWN OR 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.
MAS004627 MCL 25-182025-03-19. Other. UNKNOWN OR OTHER. We are pleased to inform you that a new Tutorship process has been defined that will cooperate directly with the suppliers of the main components of Maserati’s cars to promptly intercept potential issues, reducing diagnosis times and providing maximum assistance and know-how for the resolution of our clients’ cases. Through the direct support of professional technicians, the Aftersales Tutorship Team with the supervision of the HQ Blue on Line Team will be able to carry out detailed diagnosis on reports coming from the network. If an intervention on a component under Tutorship is needed (see Tutorship List attached), you will have to create a Blue on Line as a Support Request. It’s important that you accurately follow the instructions that you will receive and do not replace a component without authorization.
MAS004589 MTB 25-082025-03-19. Other. UNKNOWN OR 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.
MAS004385 MCL 25-122025-03-19. Other. UNKNOWN OR OTHER. This communication is intended to provide important information on the serviceability of the Crossover and Water Pump installed on Maserati vehicles. To properly face a recurring issue affecting the Crossover of V6 engines, from today it’s possible to replace the Crossover, instead of the complete Timing System Front Cover. Taking this opportunity, we remind you that also the Water Pump can be replaced independently from the complete Timing System Front Cover.
MAS004616 MTB 25-072025-02-28. Other. UNKNOWN OR OTHER. This technical bulletin serves as a guide and provides supplementary information for field management of repairs to Ghibli, Quattroporte and Levante dashboards, specifically addressing the leather detachment issue typically found in the central upper area.
MAS004578 MTB 25-052025-02-28. Other. UNKNOWN OR 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.
MAS004560 DS 25-042025-02-18. Other. UNKNOWN OR OTHER; SUSPENSION. his Diagnostic Sheet serves as a guide and provides additional diagnostic info for possible front suspension anomalies. Noise from the front suspensions while maneuvering.
MAS004442 MTB 25-022025-02-03. Other. UNKNOWN OR OTHER. This technical bulletin serves as a guide and provides supplementary information for field management of repairs to the Ghibli and Quattroporte door panel, specifically addressing the leather detachment issue. For field management of related cases, the technician will check on site the availability of a leather specialist who can carry out the below indicated repair.
MAS004438 MTB 25-032025-02-03. Other. ENGINE; UNKNOWN OR OTHER. This Technical information bulletin serves as a diagnostic guide for managing engine oil leaks and instructing related repairs.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.