Catalytic Converter, Replacement Guidelines (GROUP 26, NO. 12-05)

Publication date: 2012-07-18
Reference number: GROUP 26, NO. 12-05
Supersedes refnos: 2010271, GROUP 26, NO. 05-02, GROUP 26, NO. 07-01, GROUP 26, NO. 07-06

CATALYTIC CONVERTER, REPLACEMENT GUIDELINES

TECHNICAL SERVICE BULLETIN

Reference Number(s): GROUP 26, NO. 12-05 (2010271), Date of Issue: July 18, 2012

VOLKSWAGEN:	All 1999-2006
GROUP:	26 - Exhaust System/Emission Controls

Superceded Bulletin(s): GROUP 26, NO. 07-06, Date of Issue: September 13, 2007

APPLICABLE MODELS AND YEARS

Model(s)	Year	Eng. Code	Trans. Code	VIN Range From	VIN Range To
All	1999-2006	All gas engines EXCEPT 2.0L (AVH, AZG, BDC)	All	All	All

CONDITION

26 12 05 July 18, 2012 2010271 Supersedes T. B. V260706 dated September 13, 2007 to update warranty table claiming information.

Catalyst efficiency faults stored in memory (See DTC table below).

TECHNICAL BACKGROUND

Guidelines for catalytic converter replacement

PRODUCTION SOLUTION

No production change required.

SERVICE

Tip: Oil level MUST be correct, if overfilled, level should be adjusted to the proper level prior to performing procedure. Adjusting oil level is NOT covered by Warranty.

Exhaust system damage from outside influences is NOT covered by Warranty.

The following steps are to be followed before replacement of catalytic converters.

Inspect complete exhaust system for broken or missing components, loose clamps, etc. Repair as necessary.
If vehicle has MIL ON, investigate fault memory without erasing codes.

Before performing any repair, make a print out of fault memory including:

Address 01 fault memory (including ECM information)
Address 01 Measuring Value Block 46 (and 47, if applicable)

Tip: For 4 bank systems such as Phaeton W12, Display groups 46 and 47 must be printed out from addresses 01 and 11.

OBD freeze-frame mode 2, and 6.

Tip: For OBD, see Repair Manual - Fuel Injection & Ignition 2.0 Liter 4yl. 2V Generic Scan Tool Engine Code(s). AEG, BBW, BEV, ST-Generic Scan Tool

Steps for printing OBD from the touch screen:

Select "OBD".
Select "mode 2".
Select all PIDS displayed (use scroll bar if necessary).
Select right arrow key to display results.
Select "print", and then save result.
Save results for modes 2 and 6.
Print - self diagnosis log.

DO NOT replace catalyst if software updates related to catalyst are available. Check for applicable Technical Bulletins or Campaigns.

Perform any applicable software updates available through Technical Bulletins or Campaigns.

If other faults related to fuel mixture, oxygen sensor or misfire are present:

DO NOT replace catalyst(s).

Correct condition, erase DTCs, reset readiness codes and monitor measured value block (MVB) in 46, 47 until complete ("Test OK or Test n OK").

If after repair of other faults, diagnostic result in MVB 46 (and 47, if applicable) is/are OK:

DO NOT replace catalyst(s).

If after repairing other fault codes and setting readiness code, and any fault codes in the table return:

Replace catalyst(s) as necessary, using applicable SRTs.

If software updates do not apply, and only one or more of the following fault codes (DTCs) are present (see table below):

DIAGNOSTIC TROUBLE CODES

DTC	Description
P0420	Catalyst System, Bank 1 Efficiency Below Threshold
P0421	Warm Up Catalyst, Bank1 Efficiency Below Threshold
P0422	Main Catalyst, Bank1 Efficiency Below Threshold
P0430	Catalyst System, Bank2 Efficiency Below Threshold
P0431	Warm Up Catalyst, Bank2 Efficiency Below Threshold
P0432	Main Catalyst, Bank2 Efficiency Below Threshold
P3298	Catalyst System, Bank 3 Efficiency Below Threshold
P3299	Catalyst System, Bank 4 Efficiency Below Threshold

Replace catalytic converter, erase DTCs and reset readiness code.

If DTC text indicates bank 2, bank 3, bank 4:

Verify catalyst location before replacement, see Service Manual repair group 26. Use applicable SRTs.

For technical assistance, select the "Technical Assistance" tab in ElsaWeb and follow the instructions to obtain a 6 digit pin.

Tip: Before repairing vehicle or erasing fault codes (DTCs) remember to make print-outs including freeze-frame data as required and attach to the repair order.

If catalytic converter is on parts submission, attach copies of all supporting documentation (including printouts) required when sending parts to Warranty Test Center.

WARRANTY

NOTE: This bulletin covers diagnosis only. Any and all repairs will be claimed as a separate line item.

WARRANTY INFORMATION

To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and Procedures Manual ⁽¹⁾

Model(s)

Year(s)

Eng. Code(s)

Trans. Code(s)

VIN Range From

VIN Range To

All

1999-2006

All gas engines EXCEPT
2.0L (AVH, AZG, BDC)

All

SAGA Coding

Claim Type:

Use applicable Claim Type ⁽¹⁾

Service Number:

Damage Code

HST

Damage Location (Depends on Service No.)

2673

0016

Use applicable when indicated in ElsaWeb (L/R)

Parts Manufacturer

R32, Jetta Wagon, Passat, Passat Wagon, Rabbit, Eos

WWO ⁽²⁾

Cabrio, Jetta, Beetle, Beetle Convertible,

3ME ⁽²⁾

Golf

2BR ⁽²⁾

Labor Operation ⁽³⁾ :

26730199 = 60 TU

Diagnostic Time ⁽⁴⁾

GFF Time expenditure

01500000 = 20 TU max.

YES

Road Test

01210002 01210004

Technical Diagnosis

0132xxxx =

Claim Comment: Input "As per Technical Bulletin 2010271" in comment section of Warranty Claim.

⁽¹⁾	Vehicle may be outside any Warranty in which case this Technical Bulletin is informational only

⁽²⁾	Code per warranty vendor code policy.

⁽³⁾	Labor Time Units (TUs) are subject to change with ELSA updates.

⁽⁴⁾	Documentation required per Warranty Policy Procedures Manual.

REQUIRED PARTS AND TOOLS

When replacing any catalyst, your VIN may be required to ensure the correct part is ordered (check with your parts department).

No Special Tools required.