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Technical Service Bulletin
SUBJECT:

RUST ON QUARTER PANEL

No:

TSB−18−42A−001

DATE:

April 2018

2011−14 Outlander
Sport/RVR

MODEL:
CIRCULATE TO:

[ ] GENERAL MANAGER

[ X ] PARTS MANAGER

[ X ] TECHNICIAN

[ X ] SERVICE ADVISOR

[ X ] SERVICE MANAGER

[ X ] WARRANTY PROCESSOR

[ ] SALES MANAGER

PURPOSE
A customer may report a condition where rust forms on the outer side panel (see example in photo
below). This may be a result of water penetrating into the joint portion between the inner quarter panel
and the inner quarter panel extension where sealant was incompletely applied during manufacturing. If
the vehicle has been washed with high-pressure water (such as a power washer), water may intrude
and remain in the formed filling material, possibly leading to rust on the outer side panel.
In case corrosion repair on the quarter panel is required, this TSB instructs dealers to apply sealant to
the joint area shown below, preventing recurrence of rust.
NOTE: If you are using an outside body repair shop, please print out this bulletin, put it in the vehicle and inform
the outside shop to use the repair procedure in it.
Example of Rust on Rear Wheel Arch

Detail of Rear Quarter Panel

Formed filling material

Inner quarter panel

Joint portion of panels

Rust may occur here
Inner quarter panel extension

AFFECTED VEHICLES
2011-2012 Outlander Sport/RVR (MMC production) vehicles built before May 29, 2013
2013-2014 Outlander Sport/RVR (MMNA production) vehicles built before May 31, 2013

Copyright 2018, Mitsubishi Motors North America, Inc.

Continued

The information contained in this bulletin is subject to change. For the latest version of this document, go to the Mitsubishi Dealer Link,
MEDIC, or the Mitsubishi Service Information website (www.mitsubishitechinfo.com).
(4626)

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TSB−18−42A−001

REPAIR PROCEDURE
Rust recurrence can be avoided by applying sufficient sealant at the edge of the overlap/joint portion
of the inner quarter panel to inner quarter panel extension [A] and outer side panel [B], after the panel
is repaired.

Joint portion of inner quarter panel, inner quarter panel extension

LH side view

Bottom view
Cross section of rear joint of quarter panel in the wheel house

Inner quarter panel extension
Outer side panel

A*
Inner quarter panel
B*

*Refer to following steps for more details on sealant application.

1. Remove the rear wheel to gain access.
2. Take photographs of ALL rusted areas on the panels. See picture above for location of area(s) to be
photographed.

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3. Upload the photographs to the Photo Required Condition System (PRC). Post photos as Repair Type
“Rust/Perforation Corrosion.”

4. Remove under body protection coating to be able to
properly apply the sealant.

Upper side

Front of vehicle

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TSB−18−42A−001

NOTE: The photos for steps 6 and 7 are taken from a vehicle in production for easier identification. Customer
vehicles have an under body protection coating in the inner wheel arches covering the sealant.

OK

Upper side

5. Repair all rusted areas according to the applicable
Service Manual as necessary.

Front of vehicle

6. Apply sealant to fully cover the edge of the joint portion
of the inner quarter panel, inner quarter panel
extension, and outer side panel.

Joint portion of quarter panel inner “A”

Upper side

OK

7. Apply sealant to fully cover the joint portion of the 3
panels.

Front of vehicle

Joint portion of 3 panels “B”

NG
Improper application of sealant

8. Use strict inspection and control during the sealant
application process to ensure full coverage of joint
areas.
NOTE: Confirm sealant was applied correctly by using a
hand mirror or equivalent.

Edge of joint portion showing

Joint of 3 panels showing

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Upper side

9. After application of the sealant to close all seams,
properly reapply the under body protection coating
according to the applicable Body Repair Manual
procedure.

Front of vehicle

PARTS INFORMATION
Under body protection coating: as available in your market (no specific brand / specifications)
Body seam sealant: as available in your market (no specific brand / specifications)

WARRANTY INFORMATION
This bulletin is supplied as technical information only and is not an authorization to repair. If an
affected vehicle is reported with the described condition, diagnose the condition, repair as described
in this bulletin and submit a normal warranty claim using the following information.
Description: Quarter Panel Rust: Repair Rust and/or Apply Body Sealant

Rust Coverage

Operation
Code

5 yrs/Unlimited miles
(General Rust Coverage)

42103499

7 yrs/100,000 miles
(Outer Body Panel Rust
Perforation)

42103498

* PWA from DPSM if over 2.0 hrs.

Nature
Code

Cause
Code

Operation
Time

Max Hours
w/o DPSM
PWA

Photos
Required

30D

580

Actual
time*

2.0 hrs*

Yes