NHTSA ID Number: 10199955
Manufacturer Communication Number: WVX-34R
TSB/Document Date: 2021-08-04
Summary
Subaru of America, Inc. (SOA) has determined that affected vehicles listed, may have been manufactured with front lower control arms (transverse links) that could corrode in the hanger bracket area if exposed to salt for a prolonged period.
Hanger bracket location.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 8
Front Lower Control Arm, Right Side
Inspect the left side.
If there are signs of rust perforation, proceed with replacing both control arms.
If there are no signs of rust perforation, proceed with the punch test.
2) Punch Test
Starting on the right side, use a rag and remove any dirt, mud, surface rust or under coat from
the top and bottom surfaces of the hanger bracket for measuring the location for punch testing.
Right side, bottom
Measure the bottom surface approximately 40mm from the weld to the center of the hanger
bracket and make a mark.
About 40mm
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 9
Next, measure the top surface.
Measure approximately 35mm from the weld to the center of the hanger bracket and make a
mark.
About 35mm
Right side, top
Prepare the Punch Tester
Handle
Lock Grove
Trigger Tube
Lock Pin
Punch Tip
Spring
Punch Tester
Caution: Do not leave the lock pin in the lock groove when not in use. It is not only dangerous but it will cause degradation of spring force and punching function.
Note: This tool should be used for punch test purpose only. Do not use it for other purposes.
Slide the trigger tube toward the punch tip and set the lock pin to the trigger tube.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 10
Draw the trigger tube downward and set the lock pin to the lock groove.
Lower Punch Test
Firmly, set the tip of the punch tester vertically at the previously marked point. While pushing
up, hold the handle and twist the trigger tube clockwise to trigger punch test.
Lower punch test
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 11
Upper Punch Test
Firmly set the tip of the punch vertically at the previously marked point. While pushing
down, hold the handle and twist the trigger tube clockwise to trigger punch test.
Upper punch test
Using a paper clip, insert it into the indentation made by the punch tester. Work the paper
clip back and forth in an attempt to penetrate the metal. If the paper clip cannot be inserted,
perform the procedure on the upper surface.
If the paper clip can be pushed through the metal, the arm is failed.
If the right side is failed, replace both control arms.
If no rust perforation, perform punch test on left side.
If the left side is failed, replace both control arms.
If both sides pass the visual and punch test, proceed with rust proofing.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 12
Rust Proofing Procedure
Caution: Be sure to wear protective goggles and mask.
SPRAY EQUIPMENT OPERATING INSTRUCTIONS
The pressure pot is equipped with a valve to adjust the ratio of product to air. This valve will
have to be adjusted in order to achieve to optimal spray pattern for each material. The valve is
described as the Stop Screw in the diagram below.
Before filling the gun with Nox-Rust® material, turn the stop screw clockwise until all the
way closed. Use a marker pen or paint and make a mark at the 12:00 position. This line will
be used to determine the number of turns needed for optimal spray of the waxes.
Settings For Nox-Rust® R-576-108 Corrosion Preventive Wax
When using the 360o flexible wand or 90o hook wand, turn the stop screw counterclockwise 1
turn from closed, and adjust the air pressure to 60 psi.
Settings For Nox-Rust
® X-210 Corrosion Preventive Penetrant
When using the 360o flexible wand, turn the stop screw counterclockwise 1 turn from closed,
and adjust the air supply pressure to 60 psi.
Gun Disassembly And Cleanout
1) Turn the stop screw clockwise until all the way closed. Blow the cavity wax spray
tube clear with air.
2) Disconnect the gun from the air supply.
3) Remove the wax spray tube using the quick disconnect.
4) Relieve the pressure from the gun by slowly turning the pot counterclockwise until all of
the air escapes. Do not use the gun trigger to relieve pressure from the pot. This will
cause the wax to flow into the air line supply of the gun.
5) If the gun is to be stored for more than 4 weeks, clean the gun with mineral spirits.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 13
Insert a paper clip into the hanger bracket water drain hole and remove any rust particles and/
or mud if clogged.
Insert a flexible magnet through the upper hole of the hanger bracket to remove any rust
particles.
Perform the same procedure on the opposite side.
Wrap rags around stabilizer link, exhaust pipe, front control bushings, ball joint, steering gear
box boot and axle shaft boots. Do the same on the opposite side.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 14
Position a suitable container under the control arm to catch any oil and wax during the
application.
Spray Gun Preparation
Spray gun nozzle adjustment:
Close the spray gun stop screw to the fully closed position. Use a marker pen or paint and
make a mark at the 12:00 position. Turn the stop screw counter clockwise one full turn.
Install the quick disconnect 360o flexible wand.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 15
Amount of chemicals that will be used per vehicle
Nox-Rust® X210 (anti-rust oil) 80cc per side, 160cc per vehicle
Nox-Rust® R-576-108 (anti-rust wax) 46cc per side, 92cc per vehicle
Add 160cc of Nox-Rust X210 (Oil) to the spray gun pot.
Attach air line to spray gun and adjust air pressure regulator to 60 PSI.
Test spray gun for proper operation. A rag and container should be used.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 16
Nox-Rust® X210 (anti-rust oil) Application
The inside of the hanger bracket will be sprayed in 3 directions. For the first step, oil will be
used with the 360o flexible wand.
Spray Pattern Overview
C
B
A
Spray Pattern “A”
A) Insert the spray nozzle through the upper hole of the hanger bracket (insertion length:
75mm) until it contacts the front surface of the hanger bracket wall.
Pull the trigger of spray gun while holding the wand in position to confirm that oil leaks
out of an opening in the hanger bracket. Pull out wand with a constant gradual speed
while spraying for at least 4 seconds.
Spray Pattern “A”
Spray Pattern “A”
Cut section of hanger (for
illustration purposes)showing
direction of nozzle.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 17
Spray Pattern “B”
B) Insert the spray nozzle with its tip facing down through the upper hole of hanger bracket
(insertion length: 65mm) until it contacts the bottom surface of hanger bracket wall.
Pull the trigger of spray gun while holding the wand in position to confirm that oil leaks
out of an opening in the hanger bracket. Pull out wand with a constant gradual speed
while spraying for at least 2 seconds.
Spray Pattern “B”
Spray Pattern “B”
Cut section of hanger (for
illustration purposes)showing
direction of nozzle.
Spray Pattern “C”
C) Insert the spray nozzle with its tip facing up through the upper hole of hanger bracket
(insertion length: 72mm) until it contacts the top surface of hanger bracket wall.
Pull the trigger of spray gun while holding the wand in position to confirm that oil leaks
out of an opening in the hanger bracket. Pull out wand with a constant gradual speed
while spraying for at least 2 seconds.
Perform same procedure on opposite side of vehicle.
Spray Pattern “C”
Spray Pattern “C”
Cut section of hanger (for
illustration purposes)showing
direction of nozzle.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 18
Nox-Rust® R-576-108 (anti-rust wax) application inside of hanger bracket
The inside of the hanger bracket will be sprayed in 3 directions. For this step, wax will be
sprayed using the 360o wand.
Note: To release pressure from spray gun, slowly turn pot counterclockwise.
Remove pot from spray gun and cap pot.
Using the other pot supplied, add 92cc of Nox-Rust R-576-108 to the spray gun pot.
Adjust air pressure regulator to 60 PSI.
Spray Pattern Overview
C
B
A
Spray Pattern “A”
A) Insert the spray nozzle through the upper hole of the hanger bracket (insertion length:
75mm) until it contacts the front surface of hanger bracket wall.
Pull the trigger of spray gun while holding the wand in position to confirm that wax
leaks out of an opening in the hanger bracket. Pull out wand with a constant gradual
speed while spraying for at least 2 seconds.
Spray Pattern “A”
Spray Pattern “A”
Cut section of hanger (for
illustration purposes)showing
direction of nozzle.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 19
Spray Pattern “B”
B) Insert the spray nozzle with its tip facing down through the upper hole of hanger bracket
(insertion length: 65mm) until it contacts the bottom surface of hanger bracket wall.
Pull the trigger of spray gun while holding the wand in position to confirm that wax
leaks out of an opening in the hanger bracket. Pull out wand with a constant gradual
speed while spraying for 1 second.
Spray Pattern “B”
Spray Pattern “B”
Cut section of hanger (for
illustration purposes)showing
direction of nozzle.
Spray Pattern “C”
C) Insert the spray nozzle with its tip facing up through the upper hole of hanger bracket
(insertion length: 72mm) until it contacts the top surface of hanger bracket wall.
Pull the trigger of spray gun while holding the wand in position for 2 seconds; confirm
that wax leaks out of an opening in the hanger bracket. Pull out wand with a constant
gradual speed while spraying for at least 1 second.
Perform same procedure on opposite side of vehicle.
Spray Pattern “C”
Spray Pattern “C”
Cut section of hanger (for
illustration purposes)showing
direction of nozzle.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 20
Nox-Rust® R-576-108 (anti-rust wax) application outer surface of hanger bracket
Remove the 360o flexible wand and install the 90o hook wand.
Adjust air pressure regulator to 60 PSI.
Spray anti-rust wax to the surface of the hanger bracket only, top, sides and bottom.
Rust Proofing Material Target Area
(Top Sides and Bottom)
IMPORTANT: Remove rust-proofing wax from drain hole of hanger bracket using a cotton
swab. Perform continuously until it can be confirmed that the hole is not clogged.
Perform the procedure on the opposite side.
Bulletin Number: WVX-34R; Revised: 07/26/21
Continued...
Page 21
Replacement of Front Lower Control Arms
Refer to page 6 for parts information.
Replace per applicable Subaru Service Manual instructions.
IMPORTANT NOTE: Reuse the original rear bushing which is not contained in the parts kit.
Use 3 new self lock nuts below, which are contained in the parts kit. (They are not reusable.)
- for rear bushing installation
- for attaching the front arm and cross member
- for attaching the stabilizer link and front arm
NOTES:
• Refer to “Front Transverse Link” of Subaru Service Manual for removal and
reinstallation of rear bushing.
• Install rear bushing and front arm in the same angle as the original state before
replacement.
Put a mark on rear bushing, at which it is aligned with front arm flange. When rear bushing is
reinstalled to a new front arm, align the rear bushing mark with the front arm flange.
Be careful of installing order and direction.
Be careful of installing order and direction.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 22
RECALL IDENTIFICATION LABEL
Type or print the necessary information on a Recall Identification Label. The completed label
should be attached to the vehicle’s upper radiator support.
WVX-34
Additional labels are available through the Subaru Claims Helpline at 1-866-782-2782.
CLAIM REIMBURSEMENT AND ENTRY PROCEDURES
Credit to perform this recall will be based on the submission of properly completed repair
order information. Dealers may submit claims through Vehicle Claim Entry on Subarunet.
com.
Listed below is claim entry information:
CLAIM TYPE
RC
CAMPAIGN CODE
WVX-34
LABOR
A161-140
0.7 hrs.
LABOR OPERATION
Front Lower Control Arms Inspect, Punch
Test & Rust Proof – Both Sides
A161-143
2.5 hrs.
Front Lower Control Arms Inspect, Punch
Test & Replace – Both Sides
Includes Alignment
Refer to pages 5 & 6 for part information.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 23
OWNER NOTIFICATION LETTER
Important Safety Recall Notice
Subaru Recall Campaign WVX-34
NHTSA Recall No. 11V-464
November 2011
Dear Subaru Owner:
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety
Act.
SUBARU OF AMERICA, INC. has decided that a defect, which relates to motor vehicle
safety, exists in some 2002 - 2007 model year Subaru Impreza and 2003 - 2008 model year
Subaru Forester vehicles whose owners either currently reside in, or the vehicle has ever been
registered in, at least one of the following states:
Connecticut
Delaware
District of Columbia
Illinois
Indiana
Iowa
Maine
Maryland
Massachusetts
Michigan
Minnesota
Missouri
New Hampshire
New Jersey
New York
Ohio
Pennsylvania
Rhode Island
Vermont
West Virginia
Wisconsin
DESCRIPTION OF THE SAFETY DEFECT
Subaru has determined that your vehicle may have been manufactured with front lower control arms (transverse links) that could corrode in the hanger bracket area if exposed to salt for
a prolonged period of time. If the vehicle is operated for an extensive period in a “salt-belt”
area (see list of states above that use salt extensively on the roads in the winter), continued
exposure to salt could cause the lower control arm hanger brackets to rust and eventually
break.
DESCRIPTION OF THE SAFETY HAZARD
The lower control arms are part of your vehicle’s front suspension. If one or both were to
break due to rusting, control of the vehicle could be affected without prior warning, possibly
resulting in a crash. If you encounter this situation, avoid sudden braking and steer straight
ahead as you gradually slow down. Then move to an area off of the roadway where you can
safely stop.
INSPECTION / REPAIR
Subaru will inspect and test the current condition of your vehicle’s front lower control arms. If
both are found to be acceptable, anti-rust materials will be applied to the areas of concern as a
preventative measure. If either control arm is found to be unacceptable, both will be replaced.
These repairs will be performed at no cost to you.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 24
WHAT YOU SHOULD DO
You should immediately contact your Subaru Dealer for an appointment to have the front
lower control arms inspected and repaired as indicated in the “Inspection/Repair” section of
this letter.
HOW LONG WILL THE REPAIR TAKE?
The time to inspect the front lower control arms and apply anti-rust material is approximately
42 minutes. However, if it is determined that the lower control arms require replacement, the
total estimated repair time is 2 hours and 36 minutes.
Additionally, after the anti-rust material is applied, the vehicle should not be driven for at
least one hour to allow time for the material to dry. Therefore, it may be necessary to leave
your vehicle the full day of your scheduled appointment to allow your dealer flexibility in
scheduling. Please present this letter to your Subaru Dealer at the time this repair procedure is
performed.
IF YOU HAVE PREVIOUSLY PAID FOR A REPAIR
If you have already paid for repairs associated with this condition, you may be eligible for
reimbursement. Reimbursement consideration will be based on the amount an authorized
Subaru dealer in your area would charge for replacement of the front lower control arms.
Please send the original service repair order, which has the name of the repair facility, date of
repair, mileage at the time of repair, complete vehicle identification number (17 digits), and
your name, with correct mailing address and telephone number to the address listed below.
Subaru of America, Inc.
Customer Dealer Services Department
Attention: WVX -34 Recall
P.O. Box 6000
Cherry Hill, NJ 08034-6000
Please send original receipts only and retain a photocopy for your records. Please be assured
that we will attempt to process your reimbursement request as quickly as possible, but it may
take up to 60 days for this process to be completed.
CHANGED YOUR ADDRESS OR SOLD YOUR SUBARU?
If you have moved or sold your vehicle, please complete the enclosed prepaid postcard and
mail it to us.
IF YOU NEED FURTHER ASSISTANCE:
To locate the nearest Subaru Dealer you can access our website at www.subaru.com and select
“Find a Dealer”.
For additional information and the most Frequently Asked Questions, please go to:
• http://www.wvx34.service-campaign.com
If you need additional assistance, please contact us directly:
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 25
•
•
•
Telephone: 1-800-SUBARU3 (1-800-782-2783) Monday through Thursday between
8:30 a.m. and 7:00 p.m. ET and Friday between 10:30 a.m. and 5:00 p.m. ET.
E-mail: Go to www.subaru.com and select “Contact Us”.
U.S. Postal mail: Write us at Subaru of America, Inc., Attn: CDS Department,
P.O. Box 6000, Cherry Hill, NJ 08034-6000.
Please contact us immediately if the dealer fails or is unable to make the necessary repairs
free of charge.
You may also contact the Administrator, National Highway Traffic Safety Administration,
1200 New Jersey Ave. SE, West Building, Washington, DC 20590 or call the toll free Auto
Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153) or go to http://www.safercar.gov if
you believe the dealer has failed or is unable to remedy your vehicle without charge within a
reasonable amount of time.
Your continued satisfaction with your Subaru is important to us. Please understand that we
have taken this action in the interest of your safety and your vehicle’s proper operation. We
sincerely apologize for any inconvenience this matter may cause and urge you to schedule an
appointment as soon as possible to have this repair performed.
Sincerely,
Subaru of America, Inc.
Notice to Lessors
Under Federal law the lessor of a vehicle who receives this letter must provide a copy of it to
the vehicle lessee(s) within 10 business days from receipt. The lessor must also keep a record
of the lessee(s) to whom this letter is sent, the date sent, and the applicable vehicle identification number (VIN). (For the purposes of this section, a lessor means a person or entity that in
the last twelve months prior to the date of this notification has been the owner, as referenced
on the vehicle’s title, of any five or more leased vehicles. A leased vehicle is a vehicle leased
to another person for a term of at least four months.)
A subsidiary of Fuji Heavy Industries Ltd.
Continued...
Bulletin Number: WVX-34R; Revised: 07/26/21
Page 26
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