A871569 2020124-
Service Bulletin Details
Public Details for: A871569 2020124-
Supersedes technical service bulletin group 87 number 14-49 dated april 25, 2014. Air conditioning is inoperative. The hvac blower functions normally. Battery discharged; however, when charged, there is no bus silence when vehicle ignition
- 2013 - 2012 - 2011 - 2010 - 2009 - 2008 - 2007 - 2006 - 2005 - 2004 -
Models from 2013
2013 AUDI A4 |
2013 AUDI A4 ALLROAD |
2013 AUDI A5 |
2013 AUDI A5 CABRIOLET |
2013 AUDI A6 |
2013 AUDI A7 |
2013 AUDI A8 |
2013 AUDI Q5 |
2013 AUDI RS 5 |
2013 AUDI RS5 CABRIOLET |
2013 AUDI S5 |
2013 AUDI S5 CABRIOLET |
Models from 2012
2012 AUDI A4 |
2012 AUDI A4 AVANT |
2012 AUDI A5 |
2012 AUDI A5 CABRIOLET |
2012 AUDI A6 |
2012 AUDI A7 |
2012 AUDI A8 |
2012 AUDI Q5 |
Models from 2011
2011 AUDI A4 |
2011 AUDI A4 AVANT |
2011 AUDI A5 |
2011 AUDI A5 CABRIOLET |
2011 AUDI A6 |
2011 AUDI A8 |
2011 AUDI Q5 |
Models from 2010
2010 AUDI A4 |
2010 AUDI A5 |
2010 AUDI A5 CABRIOLET |
2010 AUDI A6 |
2010 AUDI A8 |
2010 AUDI Q5 |
Models from 2009
2009 AUDI A4 |
2009 AUDI A5 |
2009 AUDI A6 |
2009 AUDI A8 |
2009 AUDI Q5 |
Models from 2008
2008 AUDI A5 |
2008 AUDI A6 |
2008 AUDI A8 |
Models from 2007
2007 AUDI A6 |
2007 AUDI A8 |
Models from 2006
2006 AUDI A6 |
2006 AUDI A8 |
Models from 2005
2005 AUDI A6 |
2005 AUDI A8 |
Models from 2004
2004 AUDI A8 |
Technical Service Bulletin 87 Air conditioning inoperative 87 15 69 2020124/13 August 24, 2015. Supersedes Technical Service Bulletin Group 87 number 14-49 dated April 25, 2014 for reasons listed below. Model(s) Year VIN Range Vehicle-Specific Equipment A4 2009-2012 000001 - 999999 Not Applicable 2013 N000001 - N045670 Not Applicable A4 A5 2008-2012 000001 - 999999 Not Applicable A5 2013 000001 - 071355 Not Applicable S5 / RS 5 2013 900000 - 902787 Not Applicable A5 Cabriolet 2010-2012 000001 - 999999 Not Applicable A5 Cabriolet 2013 000001 - 015616 Not Applicable S5 Cabriolet / RS5 Cabriolet 2013 900000 - 900501 A6 2005-2012 000001 - 999999 Not Applicable A6 2013 000001 - 134357 Not Applicable A7 2012 000001 - 999999 Not Applicable A7 2013 000001 - 134357 Not Applicable A8 2004-2012 000001 - 999999 Not Applicable A8 2013 000001 - 029602 Not Applicable Q5 2009 - 2012 000001 - 999999 Not Applicable Q5 2013 000001 - 083307 Not Applicable © 2015 Audi of America, Inc. A000001 – A231729 Not Applicable Page 1 of 10 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 Audi 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 Condition REVISION HISTORY Revision Date Purpose 13 - Revised Required Parts and Tools (Added sensor seal) 12 4/25/2014 Revised Warranty (Changed damage code; corrected labor operations) 11 8/26/2013 Revised header data (Added models, model years, and DTCs) • Air conditioning is inoperative. • The HVAC blower functions normally. • Battery discharged; however, when charged, there is no bus silence when vehicle ignition is off. Technical Background • The A/C pressure/temperature sensor, G395, leaks refrigerant. This causes sensor G395 to show an incorrect or implausible value when reading MVBs. An incorrect signal or a low refrigerant level in the system can cause the air conditioning compressor to deactivate. • The LIN cable connecting the vehicle electrical system control module, J519, to sensor G395 is pinched or cut. This affects the A4/S4, A5/S5 Coupe and Cabriolet, and Q5 vehicles. The A6 and A8 are not affected by this type of failure. • The pressure sensor G395/G65 sends an incorrect signal that prevents bus silence and the battery is discharged. Tip: Sensor G395 is a LIN slave of the vehicle electrical system control module. The vehicle electrical system control module transfers the information provided by the sensor via the comfort data bus to the climate control module, J255. Production Solution An improved sensor G395 was introduced into series production and the wiring manufacturer’s processes were optimized. © 2015 Audi of America, Inc. Page 2 of 10 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 Audi 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 Service For A4/S4 (8K), A5/S5 Coupe/Cabriolet (8T/8F), Q5, A6, A7, A8, R8: If DTCs for sensor G395 are stored in the climate control module, J255, then check the system pressures and refrigerant volume. • If system pressures and refrigerant volume are low, check for refrigerant leaks at sensor G395. If a leak is found, then replace sensor G395. • If the system pressure and refrigerant volume are correct, perform guided fault finding (GFF). If an implausible pressure value is found in MVB 1, field 4, then replace sensor G395. Tip: Install only the improved G395. See part numbers in Required Parts and Tools. Only for A4/S4 (8K), A5/S5 Coupe/Cabriolet (8T/8F), Q5: 1. Check the diagnostic fault memory for two possible DTC scenarios: DTC Scenario 1 08 - Climate Control Module - J255: DTC 00457 - Vehicle Electrical System Control Module – J519- Please check DTC memory DTC 00256 - A/C Pressure/temperature Sensor –G395- Incorrect Signal -AND09 - Vehicle Electrical System Control Module – J519: DTC 00256 - A/C Pressure/temperature Sensor –G395- No signal/communication DTC Scenario 2 08 - Climate Control Module - J255: DTC 00457 - Vehicle Electrical System Control Module – J519- Please check DTC memory DTC 00256 - A/C Pressure/temperature Sensor –G395- Incorrect Signal -AND09 - Vehicle Electrical System Control Module – J519: DTC 01592 - Air Quality Sensor –G238- No signal/communication DTC 00256 - A/C Pressure/temperature Sensor –G395- No signal/communication © 2015 Audi of America, Inc. Page 3 of 10 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 Audi 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 If scenario 1 is the case, perform step 7. If scenario 2 is the case, perform steps 2–6. Tip: The existing LIN cable connecting the vehicle electrical system control module to sensor G395 could be pinched or cut if scenario 2 is the case. 2. Check the LIN cable connecting the vehicle electrical system control module to sensor G395 according to GFF. 3. Check the wire terminals in the connector at sensor G395 for proper attachment, possible corrosion, and for any pins that may be pushed back or widened. 4. Check to make sure there is proper voltage going to the sensor and verify the ground is not intermittently open (wiggle test). 5. Check the integrity of the wire harness. There are two known sections in the wiring harness that can be affected, but the potentially affected areas are not limited to these two known sections. One of the known sections is in the driver’s footwell area where the wire harness enters the interior of the car from the engine bay (Figure 1). Figure 1. Wire harness in driver footwell area. © 2015 Audi of America, Inc. Page 4 of 10 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 Audi 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 The second known section is in the wire harness located under the driver’s side headlight (Figure 2). Figure 2. Wire harness under driver’s side headlight. 6. If a cut wire is found, install an overlay wire for the LIN bus signal. Do not attempt to repair the existing wire harness. a. Route the new LIN bus wire from the vehicle electrical system control module, J519, to the sender for sensor G395 so that it enters the interior of the vehicle through the driver’s side fender/lower Apillar area through the grommet indicated in the images at right (Figures 3 and 4). Tip: Do not route the wire through the same opening used by the existing wire harness. Figure 3. Grommet in driver’s side fender/lower A-pillar area used for pass-through for new overlay wire. © 2015 Audi of America, Inc. Page 5 of 10 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 Audi 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 Figure 4. Access hole in grommet. Tip: The LIN bus between the vehicle electrical system control module and sensor G395 may contain a junction point shared with other modules depending on the vehicle. Ensure that the junction points are maintained when routing the overlay. © 2015 Audi of America, Inc. Page 6 of 10 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 Audi 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 On vehicles with a charisma switch (ride selection switch located on the instrument panel) route the new cable of the sender for sensor G395 to junction B549 (Figure 5, red arrow). Figure 5. Cable routing with charisma switch option. © 2015 Audi of America, Inc. Page 7 of 10 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 Audi 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 b. Seal off the opening around the wire with Butyl sealant to prevent water intrusion (Figure 6). Figure 6. Access hole in grommet to be sealed with Butyl sealant. 7. Replace the sender for sensor G395 and the o-ring. © 2015 Audi of America, Inc. Page 8 of 10 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 Audi 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 Warranty Claim Type: Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin is informational only. Service Number: 8757 Damage Code: 0050 Labor Operations: Repair front left wiring loom 9715 9999 165 TU Drain and refill refrigerant (if necessary) 8703 1700 50 TU Check front left wiring loom 9715 9999 175 TU For MY 2003-2010 A8 and MY 2005-2011 A6 only: Replace A/C pressure/temperature sensor (G395) 8709 1999 MAX 50 TU For all other vehicles: Replace A/C pressure/temperature sensor (G395) 8709 XXXX Diagnostic Time: Claim Comment: XX TU (See Elsa) (See Elsa) GFF 0150 0000 Time stated on diagnostic protocol (MAX 50 TU) Road test prior to service procedure No allowance 0 TU Road test after service procedure No allowance 0 TU As per TSB #2020124/13 All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures Manual. Claims are subject to review or audit by Audi Warranty. Required Parts and Tools Part Number Part Description Quantity 4H0959126A Pressure sensor 1 7H0820896 O-ring 1 © 2015 Audi of America, Inc. Page 9 of 10 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 Audi 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 Additional Information All parts and service references provided in this TSB (2020124) are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information. © 2015 Audi of America, Inc. Page 10 of 10 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 Audi 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.