A/C Inoperative After Control Unit Replacement (GROUP 87, NO. 09-05)

Publication date: 2009-05-19
Reference number: GROUP 87, NO. 09-05
Supersedes refnos: 2020631

A/C INOPERATIVE AFTER CONTROL UNIT REPLACEMENT

TECHNICAL SERVICE BULLETIN

Reference Number(s): GROUP 87, NO. 09-05 (2020631), Date of Issue: May 19, 2009

VOLKSWAGEN:	2007-2008 Eos
GROUP:	Air Conditioner

SERVICE INFORMATION

APPLICABLE MODELS AND YEARS

Model(s)	Year	Eng. Code	Trans. Code	VIN Range From	VIN Range To
Eos	2007, 2008	All	All	1F_7V000001	1F_8V000336

CONDITION

87 09 05 May 19, 2009 2020631

A/C Inoperative after Control Unit Replacement

The climatronic control unit does not function after replacement.

TECHNICAL BACKGROUND

From June 2007 a regulator motor on the heating-air conditioning unit has been discontinued. To ensure that older units can be operated with the new A/C control unit, an update with a VAS diagnostic tester is necessary (see Service solution).

NOTE: The condition as described does not compromise visibility.

PRODUCTION SOLUTION

New control unit beginning with VIN 1F_8V000337 (CW 22/07).

SERVICE

Perform this update when replacing the following Climatronic control units:

CONTROL UNIT INFORMATION

Part number	Software version
1K0 907 044 BR	SW 1111
1K0 907 044 BS	SW 1111
1K0 907 044 BT	SW 1112
1K0 907 044 CA	SW 1112
1Q0 907 044 H	SW 0303
1Q0 907 044 J	SW 0303
1Q0 907 044 K	SW 0304
1Q0 907 044 l	SW 0304
3C0 907 530 907 044 BT	SW 0707
3C0 907 530 907 044 CD	SW 0707

CONTROL UNIT UPDATE

Connect VAS diagnostic tester with the diagnosis interface.
Switch ON the ignition.
Switch ON the VAS diagnostic tester.
Select vehicle self-diagnosis.
Select 08 air conditioning .
Show all diagnosis functions .
Select adaptation .
Select channel 1 .
Select the desired value on the key pad or slide regulator.
- 0 = old heating-air conditioning unit (up to June 2007, with regulator motor)
- 1 = new heating-air conditioning unit (from June 2007, without regulator motor)
Select save value .
Select accept .

WARRANTY

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

Eos

2007, 2008

All

1F_7V000001

1F_8V000336

Claim Type:

Use applicable Claim Type ⁽¹⁾

SAGA Coding

Service Number:

Damage Code

HST

Damage Location (Depends on Service No.)

Parts Manufacturer (removed part)

8704

0040

Use applicable when indicated in ElsaWeb (L/R)

B H B ⁽²⁾

Diagnostic Time ⁽⁴⁾

GFF Time expenditure

01500000 = 10 TU max.

YES

Road Test

01210002 & 01210004

Technical Diagnosis

0132xxxx = 00 TU max.

Claim Comment: Input "As per Technical Bulletin 2020631" 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

No Special Parts required.

TOOL INFORMATION

Tool Description	Tool No:
VAS Diagnostic Tool	VAS 5051B, 5052/A (Base CD V15.00 and Brand CD V15.92 or higher)

ADDITIONAL INFORMATION

All part and service references provided in this Technical Bulletin are subject to change and/or removal. Always check with your Parts Dept. and Repair Manuals for the latest information .