V871808204903917
Service Bulletin Details
Public Details for: V871808204903917
Cleaning of r1234yf refrigerant circuit. Updated to include additional model year applicability and front bumper r & i clarification.
- 2023 - 2022 - 2021 - 2020 - 2019 - 2018 -
Models from 2023
Models from 2022
Models from 2021
Models from 2020
Models from 2019
Models from 2018
Technical Service Bulletin 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Condition Applicable Vehicles Model(s) All Models (Except ID.4) Year Eng. Code Trans. Code VIN Range From VIN Range To 2018-2023 All All All All Revision Table Instance Number Published Date Version Number Reason For Update 2049039/17 11/9/22 87-18-08 To update model year applicability and front bumper claiming instruction. 2049039/15 12/13/21 87-18-08 Adding MY 2021 Atlas and Coupe bumper removal labor operation and updating note for 2021 Atlas and Coupe since 3/1/2021. 2049039/14 9/9/21 87-18-08 Add “Atlas only” to clamping washer in parts table. 2049039/1 11/9/17 V871713 Original publication. Debris can be dispersed throughout the refrigerant circuit after A/C component damage. In order to maintain A/C operating efficiency, it is important to flush the refrigerant circuit after A/C component repairs. Note: This bulletin must be read in its entirety before beginning repair. Page 1 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Technical Background In cases where an air conditioning system component (such as a compressor or other system component) has failed and debris from the compressor or component is circulated throughout the refrigerant circuit, the refrigerant circuit must be cleaned of any and all debris or damage to the replacement components will result. Note: Any replacement of A/C compressors-regardless of the reason for failure must complete the A/C flush procedure to ensure the proper amount of oil is re-introduced into the refrigerant system. Production Solution No production change required. Service Tools Use an approved R1234yf servicing machine and the R1234yf Flush Kit RTI360831840 (Figure 1). Used for effective refrigerant handling and air conditioning circuit flushing after air conditioning component failure. Figure 1. The VAS581005 Air Conditioning Service System with Flushing Device. Page 2 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 The VAS 6338/1 Adapter Set for Refrigerant Circuits along with an additional adapter VAS 6338/38 for the expansion valve bypass this kit, contains the adapters necessary to complete a thorough flush operation of a contaminated circuit. Elsa contains the technical information for each model regarding the necessary adapter applications and connections of the servicing station for the flush operation. See Heating, Ventilation & Air Conditioning >> Refrigerant R1234yf-Servicing >> 00 General Technical Data>> Refrigerant Circuit removing contaminates>> Refrigerant Circuit, Flushing with Refrigerant R1234yf in Elsa. All other refrigerant recovery, evacuation and recharge operations are performed using the usual procedure specified in Elsa. An operations manual will accompany each servicing station that will describe operation of the unit. Procedure Front A/C: 1. If an air conditioning component has been diagnosed as the root cause of the failure, and this particular component has been verified to have released debris through the circuit, continue with the flush procedure. 2. Switch the power to the servicing station ON and begin by recovering the refrigerant from the system through the normal service fittings. Note: For all compressor replacements it is mandatory to flush the system of all oil in the system. The replacement compressor comes with a full charge of oil for a complete A/C system. Tip: During the entire process avoid interrupting the power to the station. The station's internal memory will keep a log of all operations and can conveniently be recalled and printed. If the power is interrupted, the station will lose the memory of the process, and the oil volume recovered, oil volume added, refrigerant volume recovered, etc. will have to be manually determined. 3. Disconnect the service hoses from the AC service ports of the refrigerant circuit. The VAS 6338/1 adapters will be used to bypass the following: Compressor. Expansion Valve. Rear AC lines to rear AC unit (If Equipped) Rear AC unit Expansion Valve (If Equipped) Page 3 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Note: For models with receiver drier desiccant cartridge the desiccant cartridge must be removed for the flushing process. For vehicles where the receiver drier is located on the condenser and DOES NOT have a remove-able desiccant cartridge, the receiver drier must be left in the system and flushed through. After the flush procedure is complete replace the receiver drier or drier cartridge. 4. Install the approved R1234yf servicing machine. 5. Remove Receiver Drier. Refer to Elsa Repair Manual. Note: For Atlas MY2018-2020, the front bumper does not need to be removed as stated in the Elsa repair manual. Since 3/1/2021, MY2021 Atlas and Cross Sport the bumper must be removed. When removing front grille ensure ignition is switched OFF and negative battery cable is disconnected before disconnecting the front distance regulation module. 6. Remove receiver drier cartridge. Reinstall cartridge cap with O-ring. (Figure 2) Figure 2. Location of the Receiver Drier Page 4 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 7. Remove expansion valve and install flush plate VAS 6338/38. (Figure 3) Figure 3. Installation of front expansion valve bypass adaptor VAS 6338/38. Note: (Atlas Only) The rear A/C unit refrigerant lines must be disconnected and replaced with block off adaptors VAS 6338/5 and VAS 6338/63 before performing the front A/C unit flush procedure. 8. (Atlas Only) Disconnect rear refrigerant lines and install adaptors VAS 6338/5 and VAS 6338/63 as shown. (Figure 4a, 4b) Figure 4a. Installation of high side rear A/C Line connection block adaptor VAS 6338/63. Page 5 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Figure 4b. Installation of Low side rear A/C Line connection block adaptor VAS 6338/5. 9. 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 5) Note: 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 5. A.C hose adaptor 6338/44. Page 6 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 10. 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. (Figure 6) Figure 6. Installation of VAS 6338/3 and 6338/12. 11. Attach high side A/C Recovery machine hose with VAS 6338/48 fitting to low side compressor hose adaptor VAS 6338/12. (Figure 7) Note: This connection strategy allows for a system flush in the opposite direction of the normal refrigerant flow. Figure 7. Page 7 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 12. Connect the low side A/C machine coupler to the flush tank filter adaptor. (Figure 8) Figure 8. 13. Connect flush tank hose (Yellow) to the high side compressor hose adaptor VAS 6338/3. (Figure 9) Figure 9. 14. Perform an extended 3 cycle flush. 15. After the flush process completes remove any adapters that were installed from the VAS 6338/1. 16. (Atlas Only) Proceed to section for cleaning the rear A/C unit. All others models continue to step 17. 17. Install a new Expansion Valve and Receiver Drier Cartridge. Reassemble all refrigerant lines. Page 8 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 18. Print the extended flush log of the job and attach to the repair order. 19. Connect the station in the usual manner through the service fittings and perform the normal evacuation and refrigerant recharge operations. Note: For Atlas a rear A/C unit flush must be performed before vacuum testing and recharging. Atlas Rear A/C Unit The flush process will be repeated for the additional rear air conditioning unit according to the repair information in Elsa. 20. Lower the exhaust by removing the rear exhaust clamp and single rubber hanger. (Figure 10) Figure 10. Page 9 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 21. Remove the cross bar located in the center under carriage area. (Figure 11) Figure 11. 22. Remove middle heat shield from under previously removed cross bar to access rear expansion valve. (Figure 12) Note: Replace the clamping washer before reinstalling the heat shield. Figure 12. Page 10 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 23. Remove rear expansion valve and install VAS6338/38 as shown. (Figure 13) Figure 13. Location of rear air conditioning unit expansion valve. 24. Connect the VAS 6338/3 and VAS 6338/60 to the rear refrigerant A/C lines. (Figure 14) Page 11 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Figure 14. Location and connection of the adaptors for the rear unit A/C lines Note: Later models may have a dowel pin in the high pressure refrigerant line that does not allow the VAS 6338/60 to be installed. The pin must be temporarily removed to install the VAS 6338/60. . DO NOT cut the pin flush with the refrigerant. Side cutters can be used to remove the pin and pliers to reinstall the pin (Figure 15 and 16). Figure 15. Removal of dowel pin. Page 12 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Figure 16. Installation of rear refrigerant line dowel pin. 25. Connect the VAS 6338/48 to adaptor VAS 6338/60. 26. Connect flush tank hose (Yellow) to the high side compressor hose adaptor VAS 6338/3. (Figure 17) Note: Reverse flushing not required for rear A/C unit cleaning. Page 13 of 21 © 2022 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 Transaction No: 2049039/17 Release date: 11/9/2022 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Figure 17. Attaching service station and flush hoses to rear A/C lines. 27. Perform an extended 3 cycle flush on the rear A/C unit. Note: Do not use the short flush option in the ACX1281 service menu. This is for clearing the ACX1281 machine hoses only and does not flush the vehicle refrigerant system. 28. When complete, remove any adapters that were installed from the VAS 6338/1. 29. Install a new rear Expansion Valve and reinstall all the refrigerant lines. 30. Connect the station in the usual manner through the service fittings and perform the normal evacuation and refrigerant recharge operations. 31. Print the extended flush log of the job and attach to the repair order. 32. Connect the station in the usual manner through the service fittings and perform the normal evacuation and refrigerant recharge operations A/C Components Replacement The following components must be replaced: Expansion Valve Rear Expansion Valve (If equipped) Receiver-drier/cartridge Page 14 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Warranty Note: The procedure outlined in this Technical Bulletin must be included with the warranty repair(s) and not claimed independently. You may claim $8.50 per A/C System flush for the A/C System Flush filter 0268056100 (which represents 1/5 the cost of a replacement filter) A print out from the approved R1234yf servicing machine of the flush procedure must be attached to the warranty claim. To determine if this procedure is covered under Warranty, always refer to the Warranty Policies and Procedures Manual 1) Model(s) All Models (Except ID.4) Year(s) Eng. Code(s) Trans. Code(s) VIN Range From VIN Range To 2018-2023 All All All All SAGA Coding Claim Type: Service Number: Use Service Number of Defective Component Use applicable Claim Type 1) Damage HST Code Use damage code appropriate for root cause of failure Use applicable when indicated in Elsa (L/R) -- Labor Operation 3) : Refrigerant drain and fill Damage Location (Depends on Service No.) Parts Manufacturer (removed part) Use Vendor code from failed component _ _ _2) 8703XXXX = Claim appropriate SRT for vehicle and engine in Elsa (Except Atlas) Labor Operation 3): Air Conditioner Check, All Vehicles. (Except Atlas) 87010150 = See Elsa for the latest time units Labor Operation 3): Air Conditioner Clean, All Vehicles, Front A/C only (except Atlas) 87012999 = 110 TU Page 15 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Labor Operation 3): Replace Receiver-Drier (Except Atlas) 8755XXXX = Claim appropriate SRT for vehicle and engine in Elsa Labor Operation 3): Replace Expansion Valve, if equipped. (Except Atlas) 8770XXXX = Claim appropriate SRT for vehicle and engine in Elsa Labor Operation 3): R/I Front Bumper 6329XXXX = Claim appropriate SRT for vehicle and engine in Elsa per model applicability. Atlas with Rear A/C unit. Labor Operation 3) : Refrigerant drain and fill 87031700 = See Elsa for the latest time units Labor Operation 3): Air Conditioner Check 87010150 = See Elsa for the latest time units Labor Operation 3): Air Conditioner Clean 87013099 = 300 TU Labor Operation 3): R/I Front Bumper 6329XXXX = Claim appropriate SRT for vehicle and engine in Elsa per model applicability. Labor Operation 3): Front grille remove and reinstall. 66051999 = 20 TU Labor Operation 3): Replace Receiver-Drier 87555550 = See Elsa for the latest time units Labor Operation 3): Replace Expansion Valve 87701950 = See Elsa for the latest time units Labor Operation 3): Replace Rear Expansion Valve 88701900 = See Elsa for the latest time units All Vehicles Outside Material: R1234yf Flush Kit filter 0268056100 8.50 total per A/C System Flush which accompanies a repair (this amount equals 1/5 of the cost of the A/C flush machine filter) Diagnostic Time 4) GFF Time expenditure 01500000 = 00 TU max. Road Test 01210002 = 00 TU 01210004 = 00 TU Technical Diagnosis 01320000 = 00 TU max. NO NO NO Claim Comment: Input “As per Technical Bulletin 2049039” in comment section of Warranty Claim. Page 16 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 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 Rear Expansion Valve (Atlas only) 3QF820712A 1 Self-locking bolt WHT000729A 3 Rivet (if unable to be re-used) N 0385494 1 Clamping Washer (Atlas only) N 90335004 with WHT003386 1 Tool Description 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 Page 17 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Air Conditioning System Flushing Device Filter Transaction No: 2049039/17 Release date: 11/9/2022 R1234yf Air Conditioning Unit - Filter - External Flush Item: 0268056100 Adapter set for refrigerant circuits VAS 6338/1 Refrigerant circuit adapter for MAHLE A/C Service Unit and R1234yf Flush Kit VAS6338/48 Page 18 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Refrigerant circuit adapter for expansion valve bypass VAS6338/38 Refrigerant circuit adapter for expansion valve bypass VAS 6338/18 Adapter bypass for A/C compressor line VAS 6338/3 Page 19 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Transaction No: 2049039/17 Release date: 11/9/2022 Adapter bypass for A/C compressor line VAS 6338/12 Additional adapter bypass for Atlas rear A/C unit high side rear line. VAS 6338/60 Additional adapter for Atlas rear A/C line block off. VAS6338/63 Additional adapter bypass for Atlas rear A/C unit low side rear line. VAS 6338/3 Page 20 of 21 © 2022 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 87-18-08 - Air Conditioning, Cleaning of the R1234yf Refrigerant Circuit (U.S. Only) Additional adapter for Atlas rear A.C line block off. Transaction No: 2049039/17 Release date: 11/9/2022 VAS6338/5 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. Page 21 of 21 © 2022 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.