Emissions Recall

Code: 24CV
REVISION
Subject Inlet Air Box Housing Snow Flap Replacement & Oxygen Sensor Inspection/Replacement

Release Date August 14, 2017

Revision Summary Updated measuring value range for Heated Oxygen Sensor -G39- replacement in work
procedure.
Important Repair CAMPAIGN 24CV MUST BE COMPLETED BEFORE BEGINNING THE 23U3 CAMPAIGN!
Information! Over the next few weeks there will be updates made to ODIS and the campaign circular.
Do not retain any hard copies of campaign circulars – only refer to the electronic copies
posted to Elsa and ServiceNet.
Affected Vehicles U.S.A. : 2009-2014 MY Volkswagen 2.0L TDI Engine Vehicles (Generation 1)

Country Model Year Vehicle Carline

2009-2014 Jetta
2009-2014 Jetta SportWagen
USA 2012-2014 Beetle
2012-2014 Beetle Convertible
2010-2014 Golf
Check Campaigns/Actions screen in Elsa on the day of repair to verify that a VIN qualifies for repair under this
action. Elsa is the only valid campaign inquiry & verification source.
 Campaign status must show “open.”
 If Elsa shows other open action(s), inform your customer so that the work can also be completed at the
same time the vehicle is in the workshop for this campaign.

Problem Description The snow flap in the inlet air box housing may remain partially to fully open. Should this occur,
excess warm air could enter the air intake through the snow flap inlet.
The oxygen sensor will be checked during this service and, if measured degradation tolerances
are met, the sensor will be replaced.

Corrective Action Install an improved inlet air box housing snow flap and, if measured degradation tolerances are
met, replace the oxygen sensor.

Parts Information 3C0129594A (Snow Flap) - Parts will be allocated prior to owner notification. If allocated parts
have been used and your dealership is at the weekly Upper Order Limit, please submit the
backordered sales document number to upperorderlimits@vw.com to have additional parts
released.
G052172M2 (Special Anti-Friction Agent) – Each can of Special Anti-Friction Agent is
intended to service 100 Snow Flap installations. If allocated parts have been used and your
dealership is at the weekly Upper Order Limit, please submit the backordered sales document
number to upperorderlimits@vw.com to have additional parts released.
03L906262B (O2 Sensor) - Please contact the Parts Specialists via phone (800-767-6552,
option#2), email (VWoAPartsSpecialists@vw.com) or chat with the VIN to order.
Code Visibility On or about August 11, 2017, affected vehicles will be listed on the Inventory Vehicle Open
Campaign Action report under My Dealership Reports (found on www.vwhub.com & OMD Web).
A list will not be posted for dealers who do not have any affected vehicles.
On or about August 11, 2017, this campaign code will show open on affected vehicles in Elsa.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 1 of 15
 On or about August 11, 2017, affected vehicles will be identified with this campaign code in the
VIN Lookup tool at www.vw.com.

Owner Notification Owner notification will take place in August 2017. An owner letter example is included in this
bulletin for your reference.

Emissions Campaigns The California Air Resources Board and the Department of Motor Vehicles (DMV) require
Requirements emissions-related campaigns to be completed prior to vehicle registration renewal. When
(CALIFORNIA ONLY) campaign work is done you must provide the owner with a signed “Vehicle Emission Recall –
Proof of Correction” certificate (RC EMISCAVWAU). Order certificates online via the Compliance
Label Ordering portal at www.vwhub.com.
Additional Please alert everyone in your dealership about this action, including Sales, Service, Parts
Information and Accounting personnel. Contact Warranty if you have any questions.
Dealers must ensure that every affected inventory vehicle has this campaign completed before
delivery to consumers.
Fill out and affix Campaign Completion Label (CAMP 010 000) after work is complete.
Labels can be ordered at no cost via the Compliance Label Ordering portal at www.vwhub.com.

The information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These procedures
are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To determine whether
this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.

August 2017 24CV Page 2 of 15

 Claim Entry Instructions
After campaign has been completed, enter claim as soon as possible to help prevent work from being duplicated
elsewhere. Attach the Elsa screen print showing action open on the day of repair to the repair order.
If customer refused campaign work:
 U.S. dealers: Submit request via WISE under the Campaigns/Update/Recall Closure option.

Service Number 24CV

Damage Code 0099

Parts Vendor Code WWO

Claim Type Sold vehicle: 7 10

Unsold vehicle: 7 90

Causal Indicator Mark Snow Flap as causal part*

Vehicle Wash/Loaner Do not claim wash/loaner under this action

Criteria I.D. 01

Install new Snow Flap

Labor operation: 2325 25 99 30 T.U.

Quantity Part Number Description

1.00 3C0129594A Snow Flap*
0.01 G 052172M2 Special Anti-Friction Agent

-NOTE for 2009 Model Year Vehicles-

It is NOT REQUIRED to replace the Heated O2 Sensor -G39- under this action, as the
sensor will be replaced as part of the 23U3 Campaign.

-AND if required-
Check condition of Heated Oxygen Sensor (G39)
Labor operation: 0150 00 00 up to 30 T.U. per GFF log.

-AND IF NECESSARY per test results-

Replace Heated Oxygen Sensor (G39)

Labor operation: 2357 19 99 40 T.U.
Quantity Part number Description
1.00 03L906262B Heated Oxygen Sensor (G39)

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 3 of 15
 Customer Letter Example

Subject: Emissions Recall 24CV - Inlet Air Box Housing Snow Flap
2009-2014 MY Volkswagen 2.0L TDI Engine Vehicles (Generation 1)

Dear Volkswagen Owner,

In cooperation with the United States Environmental Protection Agency and the California Air Resources Board,
we are informing you of our decision to conduct an emissions recall on 2009-2014 MY Volkswagen 2.0L TDI engine
vehicles (Generation I). Our records show that you are the owner of a vehicle affected by this action.
What is the issue? The snow flap in the inlet air box housing may remain partially to fully open. Should
this occur, excess warm air could enter the air intake through the snow flap inlet.
The oxygen sensor will be checked during this service and, if measured degradation
tolerances are met, the sensor will be replaced.
What will we do? Your authorized Volkswagen dealer will install an improved inlet air box housing snow
flap and, if measured degradation tolerances are met, replace the oxygen sensor.
This work will take about an hour to complete and will be performed for you free of
charge. Please keep in mind that your dealer may need additional time for the
preparation of the repair, as well as to accommodate their daily workshop schedule.
What should you do? In order to limit any possible inconvenience, please contact your authorized
Volkswagen dealer as soon as possible to schedule this service. For your
convenience, you can also visit www.vw.com and click on the “Owners” link to locate
a dealer near you and schedule this service online.
Lease vehicles and If you are the lessor and registered owner of the vehicle identified in this action,
address changes please forward this letter immediately via first-class mail to the lessee within ten (10)
days of receipt. If you have changed your address or sold the vehicle, please fill out
the enclosed prepaid Owner Reply card and mail it to us so we can update our
records.
Important information California regulations require that this campaign be completed prior to the time you
for California Vehicle renew your vehicle registration. Therefore, please make sure that this campaign
Owners – California is completed prior to the renewal of your vehicle registration, and that you
Regulations furnish proof of completion to the Department of Motor Vehicles (DMV) in the form of
a copy of the dealer’s repair order, including a signed “Proof of Correction” certificate.
You obtain this from your dealer after the campaign has been completed. Please
retain the signed “Proof of Correction Certificate” with your vehicle records. DO NOT
MAIL THIS FORM to the DMV, unless requested.
Can we assist you If your authorized Volkswagen dealer fails or is unable to complete this work free of
further? charge within a reasonable time, or if you should have any questions about this
communication, please reach out to us using your preferred method of
communication at www.vw.com/contact or by calling 1 800-893-5298. Our phone
team is available Monday through Friday from 8AM to 10PM EST and Saturday from
9AM to 5PM EST.
Checking your vehicle To check your vehicle’s eligibility for repair under this or any other recall/service
for open Recalls and campaign, please click on the Look Up Recalls link at www.vw.com and enter your
Service Campaigns Vehicle Identification Number (VIN) into the Recall/Service Campaign Lookup tool.

We apologize for any inconvenience this matter may cause; however we are taking this action to help ensure your
vehicle continues to meet and exceed your expectations.
Sincerely,
Volkswagen Customer Protection

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 4 of 15
 Campaign Work Procedure 24CV Emissions Recall
ATTENTION!
Damages resulting from improper repair or failure to follow these work instructions are the dealer’s
responsibility and are not eligible for reimbursement under this action.

Required Parts

Quantity Part Number Part Description

1 3C0 129 594 A Snow Flap
0.01 G 052 172 M2 Special Anti-Friction Agent
1 (if necessary) 03L 906 262 B Heated Oxygen Sensor (G39)

Required Tools

• VAS6150X – Diagnostic Tester (or equivalent)

• VAS5054X – Remote Diagnosis Head (or equivalent)

• 3337 – Ring Wrench 7-piece set (or equivalent)

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 5 of 15
 TIP
If Campaign Completion label is present,
no further work is required.

• Enter the VIN in Elsa and proceed to the

“Campaign/Action” screen.

TIP

On the date of repair, print this screen and keep a copy

with the repair order.

• Confirm the Campaign/Action is open <arrow 1>.

If the status is closed, no further work is required.

• Note the Applicable Criteria ID <arrow 2> for use

in determining the correct work to be done and
corresponding parts associated.

Proceed to Section B

Section B – Check, and if necessary, Replace Heated Oxygen Sensor (G39)

NOTE
-2009 Model Year Vehicles ONLY-
It is NOT required to replace the Heated O2 Sensor
-G39- for 2009 Model Year vehicles because a new
Heated Oxygen Sensor -G39- is included in the Base Kit
II for the 23U3 campaign. Although it is not necessary
to replace the sensor under this action, it IS REQUIRED
to reset the Heated Oxygen Sensor -G39- adaptation
values if the sensor check shows the sensor is out of
range. For 2009 Model Year vehicles, check the
“Filtered oxygen value” in the following steps, and if
determined to be out of range, follow the instructions to
reset the adaptation values.

NOTE
At this time it is required to complete this action prior to
beginning Campaign 23U3. Campaign 23U3 requires
the condition of the Heated O2 Sensor -G39- to be
verified before beginning the flash operations contained
in that action.

THIS CAMPAIGN MUST BE COMPLETED PRIOR TO

STARTING THE 23U3 CAMPAIGN!

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 6 of 15
 Check condition of Heated Oxygen (O2) Sensor -G39-
• Switch the ignition on.
• Connect the VAS6150X Diagnostic Tester (or
equivalent) to the vehicle.
• Start the ODIS program.
• Upon ODIS startup, verify the “Diagnosis”
operating mode is selected <arrow>.

• Select the “Control Module” tab.

• Scroll down and right click on Address Word
0001/ Engine Control Module.
• Select “Guided Functions” <arrow>.

• Select “Read measuring value block”

<arrow 1>.
• Select “Perform” <arrow 2>.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 7 of 15
 • Using the search function, locate measuring value
block 41.3 for “Filtered oxygen value” <arrow 1>.
• Read the measuring value block 41.3 for “Filtered
oxygen value” <arrow 1>. Check the measuring
value against the following specification:
o BAD = Greater than: 0.0195
o GOOD = Less than: 0.0195

• If the Filtered oxygen measuring value listed is

BELOW the value 0.0195, the sensor is GOOD
and does NOT require replacement.
o Proceed to Section C and replace the
Snow Flap.
• If the Filtered oxygen measuring value <arrow 2>
listed is ABOVE the value 0.0195, the sensor is
BAD and WILL require replacement.
o Proceed to the next step to replace the
Heated Oxygen Sensor -G39-.

• Switch ignition off.

• Remove the engine cover.
• Disconnect the Heated Oxygen Sensor -G39-
electrical connector <arrow>.
• Free up the wiring harness.

• Loosen and remove the original heated O2

sensor -G39- <arrow> from diesel particulate
filter using the ring wrench 7-piece set -3337-.
• Install new heated O2 sensor -G39- <arrow>
(part number 03L 906 262 B) into diesel
particulate filter using the ring wrench 7-piece set
-3337- and torque to 50 Nm.
• Reconnect electrical connector and reinstall
engine cover.

NOTE
*Risk of Damaging O2 Sensor*
Grease only the threads with Hot Bolt Paste
(G 052112A3). The Hot Bolt Paste must not get into
the slots on the sensor body.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 8 of 15
 • After replacing the Heated Oxygen Sensor
-G39-, the oxygen sensor adaptation values must
be reset.
• STOP, create a VTA ticket and contact the
Volkswagen Technicians Helpline.
o The Volkswagen Technicians Helpline
will assist you with installing a HotFix into
the ODIS Software that activates a test
plan for resetting the O2 Sensor
adaptation values, and other associated
learned value blocks.
o Follow the direction of the Volkswagen
Technicians Helpline consultant to
complete the resetting the O2 Sensor
adaptation values, and other associated
learned value blocks AFTER the sensor
has been replaced.

NOTE
-When performing Campaign 23U3-

If the Heated Oxygen Sensor -G39- was checked,

found bad, and replaced under this action, you MAY
still receive the following message “Replace the
heated oxygen sensor -G39- (before catalytic
converter), Refer to the Repair Manual, Repair
Group 23” <arrow 1> when performing the flash
procedure during Campaign 23U3. It does not indicate
a failed sensor, or improperly reset adaptation values.

It is normal to receive this message while performing

the flash operation during Campaign 23U3 if the
Heated Oxygen Sensor -G39- was found to be bad,
and replaced. Appearance of this message does not
indicate a new, failed sensor.

The new sensor requires adaptation to the new ECM

software in order for the 23U3 flash self-check routine
to “pass” the new sensor.

Disregard this message if it is received after sensor

replacement. Select “Complete/continue” <arrow 2> to
bypass.
• End the GFF session and send the GFF Log
online.
Proceed to Section C

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 9 of 15
 Section C – Replace Snow Flap
• Remove low pressure hose <1> from air filter
housing.

• Disconnect mass air flow (MAF) connector <1>

-G70-.

• Loosen clamp <1> to remove air duct hose.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 10 of 15
 • Loosen the eight airbox cover screws <arrows>
and remove the airbox cover.

• Remove the air filter <1> from the lower airbox.

• Loosen the two screws <2> on the snow flap and

remove them.
• Lift the snow flap <1> out of the airbox base and
remove it.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 11 of 15
 TIP
The new snow flap when at rest and at normal room
temperature (70 F or 21 C) may appear to be
extended in the closed position further than the old
flap. This condition is normal.

• Before installing the new Snow Flap, apply a

small amount (approx. 1 ml) of Special Anti-
Friction Agent to the Snow Flap operating piston
<arrow A>.
• Remove any excess or oversprayed Special Anti-
Friction Agent using a cloth or rag before
installing the new Snow Flap into the airbox.

Part Number Part Description

3C0 129 594 A Snow Flap
G 052 172 M2 Special Anti-Friction Agent

• Install the new snow flap by pushing the flap in

the direction of the arrow towards the closed
position for easier installation.
• Install and tighten the two screws <1> to 1.6 Nm.

NOTE
*IN-FORM Tool REQUIREMENT*
The TDI IN-FORM Tool REQUIRES a photograph of
the new Snow Flap to be uploaded in order to fulfil the
requirements of Campaign 23U3.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 12 of 15
 • Reinstall the air filter <1> into the lower airbox.

• Reinstall air duct hose in the direction of the

<arrow> and reinstall the clamp.

• Reinstall the air filter cover and tighten the bolts

<arrows> to 2 Nm.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 13 of 15
 • Reconnect mass air flow (MAF) connector <2>
-G70-.

• Reinstall low pressure hose <1> onto air filter

housing.

ALL WORK COMPLETE

Proceed to Section D

Section D – Campaign Completion Label

Install Campaign Completion Label

• Fill out and affix Campaign Completion
Label, part number CAMP 010 000, next to
the vehicle emission control information
label.

TIP
Ensure Campaign Completion Label does not cover
any existing label(s).

ALL WORK COMPLETE

Proceed to Section E

Section E - Parts Return/Disposal

Properly store (retain), destroy or dispose of removed parts in accordance with all state/province and local
requirements, unless otherwise indicated and/or requested through the Warranty Parts Portal (WPP).
Proceed to Section F (California only).

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 14 of 15
 Section F – California Only Requirements

CALIFORNIA ONLY Requirements for Emissions Campaigns Having Customer Notification

The California Air Resources Board and the Department of Motor Vehicles (DMV) require emissions-related
campaigns to be completed prior to vehicle registration renewal. When campaign work is done you must provide
the owner with a signed “Vehicle Emission Recall – Proof of Correction” certificate (RC EMIS_CAL VW).
Certificates can be ordered at no cost online via the Compliance Label Ordering portal at www.vwhub.com.

TIP
Ensure owners are aware of the importance of retaining the completed certificate for their records. It should be
mailed to the California DMV only upon request.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Volkswagen dealer. 2017 Volkswagen Group of America, Inc. All Rights Reserved.
August 2017 24CV Page 15 of 15