# Service bulletin MAS003074\-B

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.

- Type: Service bulletin
- NHTSA id: 10225915
- Published by NHTSA: 2022\-11\-07
- Manufacturer's number: MAS003074\-B
- Manufacturer's date: 2022\-09\-21
- NHTSA component: SERVICE BRAKES, HYDRAULIC; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

## NHTSA's summary

Service Campaign 496 \- Potential coolant leak from radiator delivery pipewith updated parts information and procedure to open a BOL in case a coolant leak between the thermal Pressure Switch cover and the Radiator Delivery Pipe

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10225915-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10225915-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Brakes, Electrical system, Engine

## Vehicles listed

- 2022 MASERATI GHIBLI
- 2022 MASERATI LEVANTE
- 2022 MASERATI QUATTROPORTE

## Other bulletins for the same vehicles and component

- [MAS005184 MTB 26\-10](/bulletins/11034170.md), 2026-07-01, Other: UNKNOWN OR OTHER; ENGINE. Quattroporte / Ghibli / Levante V6 – Thermostat Gasket Availability This bulletin provides updated information and further clarification regarding the replaceability of the thermostat gasket on V6 engines installed on Quattroporte, Ghibli and Levante.
- [MAS005184 MTB 26\-10](/bulletins/11034165.md), 2026-07-01, Other: UNKNOWN OR OTHER; ENGINE. Quattroporte / Ghibli / Levante V6 – Thermostat Gasket Availability This bulletin provides updated information and further clarification regarding the replaceability of the thermostat gasket on V6 engines installed on Quattroporte, Ghibli and Levante.
- [MAS005184 MTB 26\-10](/bulletins/11033983.md), 2026-06-18, Other: UNKNOWN OR OTHER; ENGINE. This bulletin provides updated information and further clarification regarding the replaceability of the thermostat gasket on V6 engines installed on Quattroporte, Ghibli and Levante.
- [MAS005111\_A MTB 26\-06](/bulletins/11032896.md), 2026-05-22, Other: UNKNOWN OR OTHER; ENGINE. 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.
- [MAS005111 MTB 26\-05](/bulletins/11031741.md), 2026-04-30, Other: UNKNOWN OR OTHER; ENGINE. Maserati Coolant fluid Color Change from pink to purple.
- [MAS004862 MCL 25\-42](/bulletins/11023125.md), 2025-09-15, Other: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This bulletin provides updated guidance regarding the serviceability of the upper dashboard panel on Maserati Quattroporte vehicles. Beginning with Model Year 2016, it is possible to replace only the upper dashboard panel rather than the complete dashboard assembly. REPLACE THE UPPER DASHBOARD PANEL ONLY IF, the affected area is not repairable per bulletin “MAS004616 MTB 25\-07 Ghibli QP Levante Dashboard Leather Repair Procedure”.
- [MAS004814 MTB 25\-28](/bulletins/11020993.md), 2025-07-30, Other: ELECTRICAL SYSTEM; BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING. This bulletin provides updated information regarding the serviceability of the center tunnel door and trim components on Grecale vehicles. Previously, if there was an issue with the ITM, Homelink buttons or the ceiling light buttons, the complete Ceiling Light assembly had to be replaced. It is now possible to replace individual components instead of the entire unit.
- [MAS004789 DS 25\-19](/bulletins/11020794.md), 2025-07-18, Other: ENGINE; UNKNOWN OR OTHER. This diagnostic sheet is intended to assist technicians in identifying and differentiating engine oil leaks and sweating.
- [MAS004745 MTB 25\-21](/bulletins/11019555.md), 2025-06-17, 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\*
- [MAS004438\_A MTB 25\-16](/bulletins/11019549.md), 2025-06-17, 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”

JSON: [/v1/bulletins/10225915](/v1/bulletins/10225915)

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