02-005-20-3688

Technical
Service Bulletin
Mazda North American Operations
Irvine, CA 92618-2922
Subject:
KNOCKING NOISE FROM REAR SUSPENSION WHILE DRIVING ON
ROUGH ROAD
Bulletin No.: 02-005/20
Last Issued: 07/22/2020
APPLICABLE MODEL(S)/VINS
2016-2020 Mazda2 vehicles (Mexico spec) with VINS lower than 3MDDJ******401991 (produced before
Jan. 14, 2020)
DESCRIPTION
Some customers may complain about a knocking noise heard from the rear suspension while driving on
rough road. The noise may be caused by a broken bound (bump) stopper that breaks because of
deterioration from environmental factors and bad road conditions.
Page 1 of 3
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2020 Mazda North American Operations, U.S.A.
07/22/2020 11:07 AM tlawrenc
Bulletin No.: 02-005/20
Last Issued: 07/22/2020
To eliminate this concern, a dust boot has been added in order to protect the bound (bump) stopper from
water and the mounting rubber has been changed accordingly.
Customers having this concern should have their vehicle repaired using the following repair procedure.
REPAIR PROCEDURE
1. Verify customer concern.


If the bound (bump) stopper is broken, replace the bound (bump) stopper with a new one, the
mounting rubber with a modified one, and install a new dust boot. Refer to the instructions on
MGSS (REAR SHOCK ABSORBER DISASSEMBLY/ASSEMBLY).
If the bound (bump) stopper is not broken, look for other sources of the noise.
2. Verify repair.
PARTS INFORMATION
Page 2 of 3
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2020 Mazda North American Operations, U.S.A.
07/22/2020 11:07 AM tlawrenc
Bulletin No.: 02-005/20
Last Issued: 07/22/2020
Parts Number
Description
Qty.
DA6C-28-1A0B
Stopper, Bump
1 or 2
Notes
DA7B-28-380 Rubber, Mounting 1 or 2
KF49-28-0A5
Boot, Dust
9YB04-0811
Nut
1 or 2
1 or 2 [R] for piston rod
[R]: Non-reusable part
WARRANTY INFORMATION
NOTE:



This warranty information applies only to verified customer complaints on vehicles eligible for
warranty repair.
This repair will be covered under Mazda’s New Vehicle Limited Warranty term.
Additional diagnostic time cannot be claimed for this repair.
Warranty Type
A
Symptom Code
82
Damage Code
9A
Part Number Main Cause
Quantity
Operation Number / Labor
Hours:
DA6C-28-1A0B
1 or 2
Bound (Bump) Stopper (RR)
XXS2BARX/ 0.4 Hrs. (One side)
XXS2BBRX / 0.6 Hrs. (Both sides)
Page 3 of 3
CONSUMER NOTICE: The information and instructions in this bulletin are intended for use by skilled technicians. Mazda technicians utilize the proper tools/
equipment and take training to correctly and safely maintain Mazda vehicles. These instructions should not be performed by “do-it-yourselfers.” Customers
should not assume this bulletin applies to their vehicle or that their vehicle will develop the described concern. To determine if the information applies,
customers should contact their nearest authorized Mazda dealership. Mazda North American Operations reserves the right to alter the specifications and
contents of this bulletin without obligation or advance notice. All rights reserved. No part of this bulletin may be reproduced in any form or by any means,
electronic or mechanical---including photocopying and recording and the use of any kind of information storage and retrieval system ---without permission in
writing.
© 2020 Mazda North American Operations, U.S.A.
07/22/2020 11:07 AM tlawrenc