Collision Service Bulletin
Aluminum Body Panel Corrosion Repair
REFERENCE:

TSB: 31-001-25
GROUP: 31 - Collision

Date:

VEHICLES
AFFECTED:

2020 - **2025** (JT) Jeep Gladiator
2019 - 2024 (BV) Jeep Renegade
2015 - 2020 (4C) Alfa Romeo 4C
2017 - 2020 (BA) FIAT 124 Spider (Convertible)
2013 - 2019 (FF) FIAT 500
2017 - **2025** (GA) Alfa Romeo Giulia
2018 - 2025 (GU) Alfa Romeo Stelvio
2014 - 2023 (KL) Jeep Cherokee
2013 - 2018 (PF) Dodge Dart
2013 - 2018 (ZD) Dodge Viper
2013 - **2025** (DS) RAM 1500 Pickup
2013 - 2022 (WK) Jeep Grand Cherokee
2013 - **2026** (WD) Dodge Durango
2017 - **2026** (RU) Chrysler Pacifica/Voyager**
2015 - 2018 (BU) Jeep Renegade
2018 - **2025** (JL) Jeep Wrangler
2015 - **2023** (LA) Dodge Challenger
2013 - 2014 (LC) Dodge Challenger
2013 - 2023 (LX) Chrysler 300
2017 - 2024 (MP) Jeep Compass
2015 - 2017 (UF) Chrysler 200
**2019 - 2026 (D2) RAM 3500 Pickup
2019 - 2026 (DD) 3500 Cab Chassis
2019 - 2023 (DF) RAM 3500 DealerCONNECT> Service Library> enter year,
model, engine> select collision info tab (adjacent to diagnostic tab)> 31- Collision Information>
Specifications> Standardize Material Identification.
NOTE: Verify current warranty policy to determine if digital imaging pre-authorization is required or
pre-approval is required from the Regional Office; depending on market.**
SPARE PARTS:

Qty
3 (AR)
1 (AR)
1 (AR)
1 (AR)

Part No.
NPN
NPN
NPN
**07470 or Equivalent**

1 (AR)
**07447*NPN
1

06103087AA

Description
Notes
500 grit Sandpaper Sheet
800 grit Sandpaper Sheet
180 grit Sandpaper Sheet
3M® 3” Clean and Strip
Disc 3M® p/n 07470 or
equivalent
**3M® Scotch-Brite
Scuffing Pad Maroon or
equivalent**
Anti-Corrosion Pen

NOTE: **Verify current warranty policy to determine if Vehicle Digital Imaging (VDI) pre-approval is
required from the Regional Office: depending on market.
DIAGNOSIS:

Fig. 1
Imperfection Decision Tree

NOTE: Class A = Visible without door/hood open.
Fig. 2
Class A Defect Requiring Repair Or Replacement
Image 1 - Blistering At Hood Edge
Image 2 - Blistering At Hinge
Image 3 - Blistering Paint

-3-

M31 FSAR-TSB-6188

Fig. 3
Examples Of Corrosion Along Leading Edges

Fig. 4
Examples Of Bubbling At Or On Hinges
1. Is corrosion evident on Class A surface as identified in Warranty Bulletin D-25-15 and Fig. 2, Fig. 3 and
Fig. 4?
● YES >>> Consult current warranty policy to determine if digital imaging and/or Regional Office Approval
is required before proceeding with repair. Proceed to Step 3.
● NO >>> Proceed to Step 2.
2. Is there an imperfection on the Class B surface?
● YES >>> Consult Warranty Bulletin D-25-15 for decision on service action required.
● NO >>> Proceed to Step 3 ONLY if repair is authorized.**
3. Remove blistered paint from the panel surface with 80 grit grinding disc.

M31 FSAR-TSB-6188

-4-

4. After digital imaging or Regional Office approval and removing the initial blistered paint from the panel
surface with 80 grit grinding disc, is severe pitting exhibited that cannot be removed with sandpaper, 3M
Clean and Strip Disc or equivalent Fig. 5?
● YES >>> Replacement of the panel is required.
● NO >>> Proceed to Step 1 of the Repair Procedure.

Fig. 5
Corrosion Examples After Paint Has Been Removed
REPAIR PROCEDURE:
NOTE: To avoid the risk of cross-contamination that will lead to galvanic corrosion issues, grinding/
sanding and prep work must be done in a separate room away from ferrous material using only
clean, non-contaminated abrasives.
1. Remove affected panel. Refer to the detailed service procedures available in DealerCONNECT/Service
Library under: Service Info> 23 - Body/Doors - Front/Panel, Door Trim/Removal.
CAUTION!
Exterior mounted hinges should not be removed unless repair procedures, such as filiform
corrosion repair underneath and around the hinge area, are required. Unnecessary removal of the
hinges will risk further corrosion damage by breaking the paint around the perimeter of the hinge.
2. Remove all trim necessary for repairing and refinishing of the affected panel.
3. Wash the panel with soap and water to remove waterborne contaminants followed by wax and grease
remover to remove solvent base contaminants.
4. Remove corrosion using an angle grinder equipped with grinding discs that are 80 grit or less. Do not use
grinding discs courser that 80 grit.

5.
6.
7.
8.

NOTE: Roloc® 3” grinding discs and/or Clean ‘N Strip discs may be used for removing
aluminum corrosion in difficult to access areas. Avoid using tools or abrasive materials
interchangeably with steel and aluminum components to avoid galvanic corrosion that may
lead to a sub-standard finish.
Sand bare metal with 180 grit.
Feather edge the old finish/repair area using 320-400 grit sandpaper.
Mask the prepared area for primer application.
Re-clean the repaired area with wax and grease remover.
NOTE: BASF® will be referenced as the primary product. Other approved Stellantis refinish
paint manufacturer brands are acceptable if equivalents are available. Refer to the list of
Stellantis approved refinish paint manufacturers below.

-5Paint Supplier
Akzo Nobel®
Axalta®
BASF®
PPG®
Sherwin Williams®

M31 FSAR-TSB-6188

Approved UV Primers
**Sikkens Autosurfacer UV**
**Cromax Premier LE3130S UV Primer Surfacer**
**Glasurit 151-170 UV Primer filler, Grey**
**SU1280 UV-Cured Primer Surfacer**
**UVP2 UV Primer**

NOTE: Refer to paint manufacturers’ for all preparation, mixing, and adhesive application
recommendations.
9. Clean sanded bare aluminum areas using a metal cleaner such as Glasurit’s 360-4 or equivalent followed
by BASF 2000 Advanced Prep Wipes or equivalent prior to applying primer.
10. Apply two coats of BASF’s Glasurit 151-170 UV Primer to the repair area.
11. Using a UV cure lamp and the appropriate PPE, cure the product for sanding and refinish preparation.
12. After curing, block sand with 500 grit or finer sandpaper to prepare the repair area for sealer application.
13. If the backside of the panels require repair and seam sealer removal was necessary, it must be restored.
Apply Fusor 129 or 3M 08308 seam sealer or equivalent.
14. Prepare panel for refinishing, remove all remaining dust, clean with Pre-Kleano 700 wax and grease
remover or equivalent and use a tack cloth to remove any remaining dust particles.
15. Apply sealer, basecoat and clearcoat per chosen paint manufacturer’s procedures.
16. Install the repaired panel. Refer to the detailed service procedures available in DealerCONNECT/Service
Library under: Service Info> 23 - Body/Doors - Front/Panel, Door Trim/Installation.
17. Install the removed trim components, including adhesive backed components (i.e. nameplates).
**SEAM SEALER LOCATIONS:
Replacement door assemblies do not include seam sealers Fig. 6. Seam sealer must be applied to all seams
as identified in Service Library.
Seam Sealer Locations and Approved Seam Sealers are identified in Service Library in the Collision
Information section under the Locations and Approved Materials tabs.**

Fig. 6
Seam Sealer Locations
1 - Upper Weatherstrip Channel
2 - Lower Weatherstrip Channel
3 - Seam Sealer**

NOTE: **For SA market only, after applying this TSB, it is not necessary to send DID-I or DID-A.**
POLICY:
Information Only
This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of FCA US LLC.