V8720022061094_5
Service Bulletin Details
Public Details for: V8720022061094_5
Refrigerant leak diagnosis using nitrogen. Updated to include additional model and model year applicability.
- 2023 - 2022 - 2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 - 2012 - 2011 - 2010 -
Models from 2023
Models from 2022
Models from 2021
Models from 2020
Models from 2019
Models from 2018
Models from 2017
Models from 2016
Models from 2015
Models from 2014
Models from 2013
Models from 2012
Models from 2011
Models from 2010
Technical Service Bulletin 87-20-02 - Refrigerant Leak Diagnosis Using Nitrogen Transaction No: 2061094/5 Release date: 6/6/2022 Condition Applicable Vehicles Year Eng. Code Trans. Code VIN Range From VIN Range To 2010-2023 All All All All Model(s) All (except ID.4) Revision Table Instance Number Published Date Version Number Reason For Update 2061094/5 6/6/22 87-20-02 Update model and model year applicability. 2061094/2 11/11/20 87-20-02 Administrative. 2061094/1 10/29/20 87-20-02 Original publication. Diagnosing a large/medium leak with the use of Nitrogen. Note: This bulletin must be read in its entirety before beginning repair. Technical Background This bulletin explains the use of Nitrogen to aid in refrigerant leak diagnosis in cases where the refrigerant evacuation process will not pass the vacuum test due to a large to medium leak where there is no refrigerant in the A/C system. This tester may speed up the diagnostic process and help identify some larger leaks without having to recharge the system with refrigerant and dye. In most cases if the refrigerant is very low or empty there is usually a large leak in the system. Note: In cases where a leak is not present using the nitrogen test further diagnosis is required. It will be necessary to inject dye into the refrigerant circuit and recharge the system. Page 1 of 8 © 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 87-20-02 - Refrigerant Leak Diagnosis Using Nitrogen Transaction No: 2061094/5 Release date: 6/6/2022 Production Solution No production change required. Service To perform this procedure you must have the NITROKITG and (oxygen free) Nitrogen. The nitrogen tank on KLI9210DLX Evaporative Emissions Tester can also be used with the NITROKITG. Note: Only the nitrogen tank on the KLI9210DLX should be used. The KLI9210DLX machine should not be attached to the vehicle or damage to A/C system components will occur. Although mentioned in Elsa Pro do not use compressed air on the refrigerant circuit. The use of compressed air instead of nitrogen can introduce contamination and moisture into the refrigerant circuit. Before setting up the NITROKITG on the vehicle, check for pressure in the refrigerant circuit. If there is refrigerant in the system evacuate the refrigerant circuit using an approved R134a/R1234yf refrigerant station. Attach to the NITROKITG manifold to the nitrogen tank. Note: If using the KLI9210DLX remove the smoke manifold set and install the NITROKIT manifold set (Figures 1 and 2). Figure1. Removing the KLI9210DLX manifold. Page 2 of 8 © 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 87-20-02 - Refrigerant Leak Diagnosis Using Nitrogen Transaction No: 2061094/5 Release date: 6/6/2022 Figure 2. Installing NITROKITG manifold set. Attach the yellow feed hose to the tank manifold regulator and the other end to the single gauge pressure regulator (Figures 3 and 4). Figure 3. Page 3 of 8 © 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 87-20-02 - Refrigerant Leak Diagnosis Using Nitrogen Transaction No: 2061094/5 Release date: 6/6/2022 Note: Pay close attention to the inlet arrow on the single gauge pressure regulator when attaching the yellow hose. Figure 4. Page 4 of 8 © 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 87-20-02 - Refrigerant Leak Diagnosis Using Nitrogen Transaction No: 2061094/5 Release date: 6/6/2022 Attach the red feed hose to the single gauge pressure regulator and attach the other end to the high side coupler valve. Attach the high side coupler to the vehicle (Figure 5). Note: There are different high side couplers depending on the systems refrigerant type (R1234yf or R134a). Use the appropriate coupler based on the system you are working on. Figure 5. Page 5 of 8 © 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 87-20-02 - Refrigerant Leak Diagnosis Using Nitrogen Transaction No: 2061094/5 Release date: 6/6/2022 Temporarily open the vehicle high side coupler to check for any pressure in the system. (Figure 6) Note: If pressure is observed the refrigerant circuit is not empty and must be evacuated in order to continue. Repeat step 1. Figure 6. Close the high side coupler on the vehicle and make sure both manifold regulators are fully closed. Open the valve on the nitrogen tank and adjust the manifold regulator to 200 psi (Figure 7). Figure 7. Page 6 of 8 © 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 87-20-02 - Refrigerant Leak Diagnosis Using Nitrogen Transaction No: 2061094/5 Release date: 6/6/2022 Reopen the vehicles high side coupler and slowly start to open the single gauge regulator in 50 psi increments. Listen for any pressure leaks. If none are identified increase the pressure by another 50 psi up to 200 psi (Figure 8). Note: A soapy water mix can be sprayed around A/C system joints and components in conjunction with this kit to help pin point a leak location. Additionally, the NITROKITG can be used with locally sourced Tracer Gas. Using tool LDA1000H (Leak Detector) the 5% of hydrogen that is mixed in with the nitrogen makes it easier for the tool to detect leaks. Figure 8. Page 7 of 8 © 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 87-20-02 - Refrigerant Leak Diagnosis Using Nitrogen Transaction No: 2061094/5 Release date: 6/6/2022 Warranty Information only. Required Parts and Tools Tool Description Tool No: Nitrogen test kit NITROKITG Compressed Nitrogen Gas (Locally Sourced) 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 8 of 8 © 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.