NHTSA ID Number: 11017191
Manufacturer Communication Number: MAS004683 DS 25-14
TSB/Document Date: 2025-04-24
Summary
GranCabrio Side Window Noise Diagnostic Guide.This Diagnostic Sheet serves as a guide and provides additional diagnostic info for possible side window noise anomalies. In the event of a concern relating to aerodynamic noise from the side windows of the New GranCabrio while traveling, the following diagnostics checklist must be applied and the required troubleshooting must be reported using Blue On Line (Factory Information) before adjusting the windows.
Diagnostic Sheet
FROM: Maserati
TSO
TO: Maserati Network
GranCabrio Side Window Noise Diagnostic
Guide
DATE: April 17, 2025
This Diagnostic Sheet serves as a guide and provides additional diagnostic info for possible side
window noise anomalies.
In the event of a concern relating to aerodynamic noise from the side windows of the New
GranCabrio while traveling, the following diagnostics checklist must be applied and the required
troubleshooting must be reported using Blue On Line (Factory Information) before adjusting the
windows.
MODELS: M189 GranCabrio (All MY).
Troubleshooting
1) Test drive the vehicle and find where the noise is coming from.
2) Apply three pieces of tape to the window in the points highlighted below, then close the door
and the window:
© 2025 Maserati North
America. Aftersales
www.maseratiusa.com
MAS004683
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 6
TECHNICAL SERVICE OPERATIONS
MAS004683 DS 25-14
Points 1-2
TECHNICAL SERVICE OPERATIONS
3) Draw 2 lines on each of the 3 strips of tape in the positions indicated in the following images to
measure the insertion of the window into the weatherstrip in the three points. The specification
provides for an insertion range between 5.5 and 9.5 mm in points 1 and 2 and between 2 and 6
mm in point 3.
Point 3
4) With the window closed, measure the following two indicated points:
•
Clearance between descending window and mobile rear window (Nominal Value 10 ± 1.5
mm), see image below points 4 and 5.
•
The profile between the descending window and mobile rear window (Nominal Value 1.5
± 1 mm), see image under points 6 and 7.
Note: The descending window must always reach over the rear one.
4
6
7
5
5) In closed window conditions, check the coupling between the window and the rear
weatherstrip (The window must butt against the weatherstrip).
8
© 2025 Maserati North
America. Aftersales
www.maseratiusa.com
MAS004683
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 6
TECHNICAL SERVICE OPERATIONS
6) Mobile rear window alignment: Open the convertible top in Convertible mode and make sure
that the mobile rear window and the descending window are in aligned positions as in the
9
7)
Evaluate the correctness of the coupling of the mirror triangle (the mirror triangle must be
under the upper molding).
10
© 2025 Maserati North
America. Aftersales
www.maseratiusa.com
MAS004683
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 6
8) Evaluate the correctness of the coupling between the hood fender and the window scraper
molding
TECHNICAL SERVICE OPERATIONS
The window scraper molding must always reach under the hood fender).
11
NOTE: Report the values recorded in the summary table below and report the required results using Blue On
Line as (Factory Information).
Warranty Claim
Only the operations described in this publication will be recognized under warranty.
The check (and possible registration) may only be required for the side subject of the customer complaint.
Any additional requests will be rectified automatically.
CAUTION: Please enter two separate claims, one for each side of the
operation: RH SIDE
Description
Part Number
Component Code
9.34.005
Operation Code:
▪ Check only
9.34.05.A (0.85 h) Right
Check and adjustment
▪
9.34.05.B (1.05 h) Right
LEFT SIDE
Description
Part Number
Component Code
9.34.006
Operation Code:
▪ Check only
▪
9.34.06.A (0.85 h) Left
Check and adjustment
9.34.06.B (1.05 h) Left
We remain at your disposal for clarification. Best regards,
TECHNICAL SERVICE OPERATIONS
© 2025 Maserati North
America. Aftersales
www.maseratiusa.com
MAS004683
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 6
TECHNICAL SERVICE OPERATIONS
Indicated source? [YES/NO]
NOTES
Indicate the area of origin of
the noise and the side (RH/LH)
in the figure below.
Measured
Design values
On
value [mm]
[mm]
target
NOTES
[YES/NO
]
Window insertion point 1
from 2 to 6
Window insertion point 2
from 2 to 6
Window insertion point 3
from 2 to 6
Window clearance point 4
10 ± 1.5
Window clearance point 5
10 ± 1.5
Window profile point 6
1.5 ± 1.0
Mobile rear window
overreach
Window profile point 7
1.5 ± 1.0
Mobile rear window
overreach
© 2025 Maserati North
America. Aftersales
www.maseratiusa.com
MAS004683
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 6
Conform
attached to
ng
BOL [YES/NO]
[OK/NOK]
TECHNICAL SERVICE OPERATIONS
Window coupling (point 8)
Photo
NOTES
Attach
In contact with
photo to
weatherstrip
BOL
Alignment of door window
Attach
with mobile rear window
photo to
(point 9)
BOL
Mirror triangle profile (point
Attach
10)
photo to
Under molding profile
BOL
Window scraper profile (point
11)
Attach
photo to
Under the box hood fender
BOL
Indicate below:
Date:
Time:
Car VIN:
BOL Number:
Name of person in charge of BOL who followed the case:
© 2025 Maserati North
America. Aftersales
www.maseratiusa.com
MAS004683
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 6
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TSB/Document ID: MAS004683 DS 25-14
Replacement Service Bulletin Number:
MFR Communication Date: 2025-04-17
MFR Internal Campaign ID/Software Version:
Communication Type: Other
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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