publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Transaction No:

2073537/2

Release date:

12/9/2024

17. Remove expansion valve and install
flush plate VAS 6338/38. (Figure 15)

Figure 15. Installation of front expansion valve bypass adaptor
VAS 6338/38.

18. Remove expansion valve N636 and install
adaptor VAS 6338/80 (Figure 16)

At this time place the bypass adaptor in the
closed position as shown in Figure 16.

Figure 16. Installation of A/C Line connection
block adaptor VAS 6338/80.
Page 14 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Transaction No:

2073537/2

Release date:

12/9/2024

19. Remove A/C Recovery machine high side coupler
from hose.
Install flush adaptor VAS 6338/48 to high side A/C
recovery machine hose. (Figure 17)

You do not have to remove low side A/C hose
coupler. The low side coupler will be connected
to the flush tank filter adaptor.

Figure 17. A.C hose adaptor 6338/44.

20. Disconnect A/C compressor hoses from the
compressor.
Install flush adaptor VAS 6338/3 on the high side
compressor hose.
Install flush adaptor VAS 6338/12 on low side compressor
hose.
Attach high side A/C Recovery machine hose with VAS
6338/48 fitting to low side compressor hose adaptor VAS
6338/12.
Attach the Yellow recovery tank hose to high side adaptor
VAS 6338/3.
(Figure 18)

This connection strategy allows for a system flush in
the opposite direction of the normal refrigerant flow.
Figure 18. Installation of VAS 6338/3 and
6338/12.
Page 15 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Transaction No:

2073537/2

Release date:

12/9/2024

21. Connect the low side A/C machine coupler to the
flush tank filter adaptor. (Figure 19)

Figure 19.

22. Perform an extended 3 cycle flush.

23. During the 3rd flush cycle move the VAS6338/80 adaptor
valve to the open position. (Figure 20)

Figure 20.

Page 16 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Transaction No:

2073537/2

Release date:

12/9/2024

24. After the flush process completes remove any adapters that were installed from the VAS 6338/1.
25. Install a new Expansion Valve and Receiver Drier Cartridge. Reassemble all refrigerant lines.
26. Print the extended flush log of the job and attach to the repair order.
27. Connect the station in the usual manner through the service fittings and perform the normal
evacuation and refrigerant recharge operations.

Page 17 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Transaction No:

2073537/2

Release date:

12/9/2024

Warranty

The procedure outlined in this Technical Bulletin must be included with the warranty repair(s)
and not claimed independently. You may claim 1/5 of the cost of A/C System Flush filter
0268056100 (See VWHub/Service/Volkswagen Special Tools and Equipment for current pricing)
A print out from the approved R1234yf servicing machine of the flush procedure must be
attached to the warranty claim and provided in DocIt.

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

ID.4

2021-2025

All

All

All

All

SAGA Coding
Use applicable Claim Type 1)

Claim Type:

Service Number:

Use Service
Number of
Defective
Component

Damage

HST

Code

Use damage code
appropriate for root
cause of failure

--

Damage
Location
(Depends on
Service No.)
Use applicable
when indicated in
Elsa (L/R)

Parts
Manufacturer
(removed part)
Use Vendor code
from failed
component
_ _ _2)

Labor Operation 3) : Refrigerant drain and fill

8703XXXX = Claim appropriate SRT for vehicle and
engine in Elsa

Labor Operation 3): Air Conditioner Check

8701XXXX = Claim appropriate SRT for vehicle and
engine in Elsa

Labor Operation 3): Air Conditioner Clean

8701XXXX = Claim appropriate SRT for vehicle and
engine in Elsa

Labor Operation 3): Replace Receiver-Drier

87551999 = 120 TU

Labor Operation 3): Replace Expansion Valve,

87701950 = 20 TU

Page 18 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Transaction No:

2073537/2

Release date:

12/9/2024

Labor Operation 3): Heating Ventilation unit R/I

85151950 = 50 TU

Labor Operation 3): Cowl Panel Trim R/I

66441900 = See Elsa for latest time units

Labor Operation 3): Deactivate HV system

93108300 = 30 TU

Labor Operation 3): R/I N636 Expansion Valve,
ID.4

87701952 = 20 TU

Outside Material: R1234yf Flush Kit filter

1/5 of the cost of A/C System Flush Filter (See
VWHub /Service/Volkswagen Special Tools and
Equipment for current pricing).

0268056100

Diagnostic Time 4)
GFF Time expenditure

01500000 = 00 TU max.

Road Test

01210002 = 00 TU

NO

01210004 = 00 TU
Technical Diagnosis

NO

01320000 = 00 TU max.

NO

Claim Comment: Input “As per Technical Bulletin 2049039” 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 Policies and Procedures Manual.

Required Parts and Tools
Part Description

Part No:

Quantity

Receiver-Drier

Vehicle Specific

1

Expansion Valve

Vehicle Specific

1

Page 19 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Tool Description

Transaction No:

2073537/2

Release date:

12/9/2024

Tool No:

Air Conditioning Service System

MAHLE R1234yf A/C Service Unit
VAS581005
Or
Robinair R1234yf – ROB1234YFX
Or
MAHLE RTI4608046401
Or
Ecotechnics EEAC830BVW

R1234yf Flush Kit
RTI360831840
Air Conditioning System Flushing Device Filter

R1234yf Air Conditioning Unit –
Filter – External Flush
Item: 0268056100

Page 20 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Engine Bung Set

Transaction No:

2073537/2

Release date:

12/9/2024

VAS6122

Adapter set for refrigerant circuits

VAS 6338/1

Refrigerant circuit adapter for MAHLE A/C Service Unit and
R1234yf Flush Kit

VAS6338/48

Page 21 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Transaction No:

2073537/2

Release date:

12/9/2024

Refrigerant circuit adapter for expansion valve bypass

VAS6338/38

Adapter bypass for A/C compressor line

VAS 6338/3

Adapter bypass for A/C compressor line

VAS 6338/12

Page 22 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Technical Service Bulletin

87-24-02 - ID.4 - Cleaning the Refrigerant Circuit R1234YF

Transaction No:

2073537/2

Release date:

12/9/2024

Adapter N636 expansion valve bypass.

VAS6338/80

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.
© 2024 Volkswagen Group of America, Inc. All rights reserved. Information contained in this document
is based on the latest information available at the time of printing and is subject to the copyright and other
intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its
licensors. All rights are reserved to make changes at any time without notice. No part of this document
may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to
other sites, without the prior expressed written permission of the publisher.

Page 23 of 23
© 2024 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and
other intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.