A011999 2033806

Service Bulletin Details

Public Details for: A011999 2033806

This bulletin provides repair instructions when coolant control valves have coolant inside of their electrical connector.


- 2014 - 2013 - 2012 - 2011 -

Models from 2011
2011 AUDI Q7
Technical Service Bulletin
01 Coolant loss from coolant valve, engine warning light on, "Limp Home" mode active, cabin heating is
insufficient
01 19 99 2033806/9 January 10, 2019. Supersedes Technical Service Bulletin Group 01 number 16-80 dated
October 13, 2016 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
A4
2012 - 2013
All
Not Applicable
A4
2014
N000001 - N000184
A000001 – A247958
Not Applicable
A5
2012
All
Not Applicable
A5
2013
A5 Cabriolet
2012 - 2013
All
Not Applicable
A5 Cabriolet
2014
000001 - 000174
900000 - 900019
Not Applicable
A6, A7
2012
All
Not Applicable
A6, A7
2013
000001 - 155596
Not Applicable
Q5
2012 - 2014
All
Not Applicable
Q7
2011 - 2013
All
Not Applicable
Q7
2014
000001 - 000973
Not Applicable
TT
2012 - 2014
All
Not Applicable
000001 - 077920
Not Applicable
900000 - 903086
Condition
REVISION HISTORY
Revision
Date
Purpose
9
-
Revised bulletin (Updated to 2019 standard)
8
10/13/2016
Revised header (Removal of A8)
7
07/21/2015
Revised title (Changed prefix to “01”)
Revised Production Solution (Updated to show that solution is now
implemented)
The customer may have one or more of the following concerns:
Page 1 of 5
© 2019 Audi 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 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
 MIL on.
 Climate system heating performance is insufficient.
 Coolant level warning is on.
 Engine temperature is elevated.
 “Limp Home” mode is active.
Workshop findings:
The results of the diagnosis based on the customer concern may reveal one or more of the following:
One of the following faults may be stored in the transmission control module (TCM), J217 (address word 0002):
 DTC P275300 (Transmission Fluid Cooler Control Circuit Open)
 DTC P275500 (Transmission Fluid Cooler Control Circuit High)
 Coolant loss is found from one or more control valves: N82, N509, or N488. Coolant may have migrated into
the wiring harness through the connector and into various control units.
 Climate system heating performance is insufficient due to coolant loss as a result of coolant migration in the
electrical harness, faults in 08-Heating and Air Conditioning Electronics that result from coolant migration in the
electrical harness, or a faulty N82 control valve.
Technical Background
Inspection of the coolant control valves
N82, N509, or N488 reveals the presence
of coolant inside the electrical connector
as shown in the illustration (Figure 1).
Figure 1. Coolant residue in the connector housing of the coolant
regulating valve.
Page 2 of 5
© 2019 Audi 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 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 connectors, wiring harness, and/or
connected control units may have been
damaged from exposure to coolant
(Figure 2).
Figure 2. Corrosion formation on the connector pins.
Production Solution
Improved coolant control valves are installed in production.
Page 3 of 5
© 2019 Audi 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 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
1. Diagnose the defective coolant valve (N82, N509, or N488) using Guided Fault Finding (GFF) where the
stored DTCs are found.
2. Replace the defective coolant valve.
Tip: Check the connectors, wiring harness, and connected control units for coolant damage. Perform
repairs as necessary.
Warranty
Claim Type:
 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If vehicle is outside any warranty, this Technical Service Bulletin is
informational only.
Service Number:
When servicing N82: 8015
When servicing N488 or N509: 1945
Damage Code:
0050
Labor Operations:
See Elsa for the specific model being serviced for this concern:
For solenoid valve N82:
See Elsa for specific labor operations
8015 9999
Use actual time
See Elsa for specific labor operations
1945 9999
Use actual time
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
For solenoid valves N488 or N509:
Diagnostic Time:
Claim Comment:
As per TSB #2033806/9
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.
Page 4 of 5
© 2019 Audi 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 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
Required Parts and Tools
Please reference ETKA using the VIN of the subject vehicle to ensure that the correct valve is being
ordered.
Part Number
Part Description
Quantity
4H0121670A
Solenoid valve
01
4H0121671D
Solenoid valve
01
See ETKA
Fasteners, Bolts, Nuts and Screws as needed per the Repair
Manual
See ETKA/ELSA
Additional Information
All parts and service references provided in this TSB (2033806) are subject to change and/or removal. Always
check with your Parts Department and/or ETKA for the latest information and parts bulletins.
©2019 Audi 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
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.
Page 5 of 5
© 2019 Audi 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 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.


© dot.report 2024

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.