A381710 2049498

38 All-wheel drive coupling is stuck on or doesn't engage, no faults stored
38 17 10 2049498/1 November 30, 2017.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
TT
2013 - 2016
All
Quattro-All wheel drive
A3, A3
Cabriolet,
S3, and Q3
2015 - 2016
All
Quattro-All wheel drive
Condition
Customer may report:
 The vehicle is binding when cornering with full steering wheel turn.
 The four-wheel drive does not work.
 When driving slowly and turning the steering wheel strongly the vehicle shudders.
 The front wheels break traction with aggressive acceleration from a stop.
Workshop findings:
 One or more of the customer statements can be reproduced.
 No relevant DTC is logged in the all-wheel drive control module, J492 (address word 0022).
 If the fuse for the control module of the four-wheel drive clutch is removed, the concern of “The vehicle is
binding when cornering” or “When driving slowly and turning the steering wheel strongly the vehicle
shudders” disappears.
Page 1 of 5
© 2017 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.
 There is a black mass in the strainer of the
pump for the four-wheel drive clutch (Figure
1).
Figure 1. Strainer of pump for four-wheel drive clutch.
Technical Background
Until the end of 2014 the oil used for the All-Wheel Drive Clutch led to precipitations of water (condensed water
from air and surrounding area). Together with particles of the clutch and steel plates these precipitations form a
black sludge. This sludge combined with the normal wear particles from the clutch clogs the strainer of the pump.
Production Solution
An improved All-Wheel Drive Clutch oil was introduced in the parts catalogue which is less sensitive regarding
precipitations. The improved oil has the same part number as the original oil.
Page 2 of 5
© 2017 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.
Service
Replacement of high-performance oil for the four-wheel drive clutch:
1. Drain the high-performance oil for the four-wheel drive clutch according to the repair manual.
2. Replace the pump for the four-wheel drive
clutch -V181- (Figure 2, number 1) according to
the repair manual.
Figure 2. Pump for four-wheel drive clutch.
3. Thoroughly clean the strainer of the pump for the four-wheel drive clutch and the pump housing.
4. Fit the pump for the four-wheel drive clutch according to the repair manual.
5. Fill the four-wheel drive clutch with high-performance oil according to the repair manual/parts catalogue.
6. Bring the vehicle/high-performance oil for four-wheel drive clutch to the operating temperature.
7. Then change the high-performance oil for the four-wheel drive clutch a second time according to the repair
manuals/parts catalogue.
Page 3 of 5
© 2017 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.
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:
3994
Damage Code:
0017
Labor Operations:
Remove and install pump for four-wheel drive 3994 1900
90 TU
Clean pump for four-wheel drive
3994 2999
20 TU
Replace oil for four-wheel drive clutch
0157 5550
40 TU
GFF
0150 0000
Time stated on
diagnostic
protocol (Max 50
TU)
Road test prior to service procedure
0121 0002
10 TU
Road test after service procedure
0121 0004
10 TU
Diagnostic Time:
Claim Comment:
As per TSB #2049498/1
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
0CQ 598 549
Repair kit for pre-charging pump
1
G 060 175 A2
High performance oil for 4 wheel coupling
2
Additional Information
All parts and service references provided in this TSB (2049498) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.
Page 4 of 5
© 2017 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.
©2017 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
© 2017 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.