TECHNICAL SERVICE OPERATIONS

MAS004675_A DS 25-21
Diagnostic Sheet
FROM: Maserati TSO
TO: Maserati Network

Noise from the front suspensions while
maneuvering
IMPORTANT NOTICE This bulletin supersedes MAS004675 DS 25-10 released on April 10, 2025. It
contains updated information, please ensure all previous versions are discarded.

DATE: July 16, 2025
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.
MODELS: Ghibi (M157), Levante (M161) and Quattroporte (M156) (All MY)
SECTION: 06.10.1 Front suspensions

Diagnostic Procedure
1. Conduct a road test to confirm the noise concern.
2. Without disassembling components:
• Inspect for dirt buildup near bushings and joints.
• Clean any debris around the joint and bushings area without removing any components.
• Road test again to determine if the noise is resolved.
→ If resolved: No further action needed.
→ If not: Proceed to Step 3.
3. Visually inspect the bushings and ball joint without disassembly:
• Look for signs of wear, such as cracked rubber, visible light passing through, or damaged/missing seals.
• Refer to Appendix A (last page) for photo references.
• If the observed condition aligns with the examples, Replace the affected lower arm and road test again.
- Photos must be included in the warranty claim, clearly documenting the condition of the
bushing or ball joint.
• If no defects are found, proceed to Step 4. (Page 2)

© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com

MAS004675_A

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 4

Retighten the bushings and ball joint fasteners (A and B in Fig. 1) of the arm to the chassis and the ball
joint head (C in Fig. 1).

The A-B fasteners must be tightened with the
vehicle resting on its wheels (not lifted), ensuring
the suspension is in its natural, unloaded neutral
position.
Figure 1

• Arm-to-chassis bushings:
– Levante (M161): 265 Nm
– Ghibli/Quattroporte (M15x): 140 Nm
• Ball joint to upright: 70 Nm (All Models)
→ Loosen each fastener by 360° and retighten to the correct torque using a torque wrench.
Road test the vehicle once more:
→ If resolved: No further action required.
→ If noise persists: Replace the noisy lower front suspension arm and retest.

© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com

MAS004675_A

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 4

TECHNICAL SERVICE OPERATIONS

Step 4 – Fastener Retightening

TECHNICAL SERVICE OPERATIONS

Warranty Claim Instructions
Include the following codes in your warranty submission:
Description

Code

Defective Code

067
6.10.003 (right lower front arm)
6.10.004 (left lower front arm)

Component Code
Operation Code
▪

Fastener retightening

▪

Right front arm replacement

▪

Left front arm replacement

▪

Test drive (after fastener
retightening or arm
replacement)

6.10.003.A (0,50 h for M15x, 0,70 h for M161)
6.10.003.0 (2.05 h)
6.10.004.0 (2.05 h)
0.20.001.1 (0.25 h)

Mandatory Attachments
• Photos clearly documenting the condition of the bushing or ball joint, including any signs of wear,
irregularities, or deterioration (Step 3)
• A written statement confirming that the noise persisted after retightening the fasteners (Step 4)
Only operations and documentation specified in this bulletin will be accepted for warranty processing.
Submissions missing required evidence will be automatically rejected.
For vehicles within 12 Months In Service (0-12 MIS) from the “Start of Warranty” (AKA “In Service
Date”), a Blue On Line must be opened for Factory Information, including all necessary supporting
documents.
If any of the above information is missing, Maserati reserves the right to request it before providing
support/approval, or feedback to Blue On Line.
Maserati reserves the right to deny coverage for repairs not performed to factory standards.
For additional questions or support, please contact Maserati Technical Service Operations.

© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com

MAS004675_A

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 4

TECHNICAL SERVICE OPERATIONS

Appendix A – Bushing Condition Reference Images
Note: Images are for reference only and may not reflect all possible component variations.
The images below are examples of bushings requiring replacement

Examples of extensive rubber breakage around the external circumference.

© 2025 Maserati Americas.
Aftersales
www.maseratiusa.com

MAS004675_A

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 4