24 14 50 2038212

Technical Service Bulletin
24 Engine judders when accelerating, air mass meter concern; no DTC
24 14 50 2038212/1 August 28, 2014.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
TT, A4, A5, A5
Cabriolet, allroad,
Q5, A6
2009 - 2014
All
2.0 TFSI Evo2
Condition
• The engine judders or runs erratically.
• The vehicle judders during acceleration.
• No event entry is stored in the engine control module (ECM).
• The air mass meter is suspected to be faulty.
Technical Background
Possible incorrect function on the sensor elements of the air mass meter.
Production Solution
Not applicable.
Service
Confirm that the Condition matches, then check the air mass meter as follows:
For A4, A5, and A5 cabriolet vehicles produced before week 25/2012 and for Q5 vehicles produced before
week 10/2013:
1. Remove the connector of the air mass meter.
2. With the connector removed, perform a test drive under the same circumstances at which the complaint
occurred. Check whether the complaint persists:
• If it does, do not replace the air mass meter as the cause lies elsewhere. Investigate other possible causes,
such as air leaks in the air intake system, a dirty or incorrectly-fitted air filter element, incorrectly slotted-in
hoses on the air intake system, etc.
• If the complaint does not persist, replace the air mass meter.
© 2014 Audi of America, Inc.
Page 1 of 2
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
For A4, A5, and A5 cabriolet vehicles produced after week 25/2012, Q5 vehicles produced after week
10/2013, and all other vehicles:
• Do not replace the air mass meter as the cause lies elsewhere. Investigate other possible causes, such as air
leaks in the air intake system, a dirty or incorrectly-fitted air filter element, incorrectly slotted-in hoses on the air
intake system, etc.
Note:
For all vehicles:
If an event entry is stored in the ECM, do not proceed as outlined above. Use guided fault finding (GFF) to
diagnose the issue.
If event entries on the throttle valve angle, the intake air temperature sensor, or the charge pressure sensor are
included in the ECM, resolve them before checking the air mass meter.
Warranty
Claim Type:
Use applicable claim type. If vehicle is outside any warranty, this Technical Service Bulletin
is informational only.
Service Number:
2445
Damage Code:
0040
Labor Operations: Remove and install air mass meter
2445 1913
30 TU
0150 0000
Time stated
on diagnostic
protocol
(For A4, A5, and A5 cabriolet vehicles produced before
week 25/2012 and for Q5 vehicles produced before week
10/2013 only)
Diagnostic Time:
GFF – Checking and clearing fault codes
(Max 20 TU)
Road test prior to service procedure
0121 0002
10 TU
Road test after service procedure
0121 0004
10 TU
Technical diagnosis at dealer’s discretion
(Refer to Section 2.2.1.2 and Audi Warranty Online for DADP allowance details)
Claim Comment:
As per TSB #2038212/1
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.
© 2014 Audi of America, Inc.
Page 2 of 2
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.