MT-002-19

Mazda North American Operations
Irvine, CA 92618-2922
M-Tips
Subject:
REPLACEMENT ENGINE ASSEMBLY FAILURE
M-Tips No.: MT-002/19
Last Issued: 09/30/2019
BULLETIN NOTES
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red text.
Previous M-Tips: Date(s) Issued:
MT-014/16
06/01/2016
APPLICABLE MODEL(S)/VINS
2016-2019 CX-3
2013-2019 CX-5
2007-2012 CX-7
2007-2019 CX-9
2007-2019 MX-5
2004-2011 RX-8
2011-2019 Mazda2
2004-2020 Mazda3
2006-2017 Mazda5
2003-2019 Mazda6
DESCRIPTION
If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manifold
internally before installing a replacement engine assembly. If the intake manifold is not cleaned properly,
the replacement engine may fail prematurely.
Metallic debris from the old engine (with catastrophic internal mechanical failure) may rest inside the intake
manifold. When the new engine assembly is installed, debris in the intake manifold will be ingested into the
new engine and cause internal damage.
Page 1 of 2
An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication.
To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further
consideration.
© 2019 Mazda North American Operations, U.S.A.
M-Tips No.: MT-002/19
Last Issued: 09/30/2019
Clean the intake manifold internally to remove any debris from old engine before installing the new
replacement engine assembly.
If the intake manifold cannot be properly cleaned internally, replace it.
Warranty Compliance Note: Mazda's Warranty Policy does not cover damage to the replacement engine
if the intake manifold was not cleaned properly.
Page 2 of 2
An editorial board comprised of MNAO service staff members generates, collects, and verifies information for this publication.
To contribute repair tip ideas, send an e-mail to [email protected]. All contributions become property of MNAO, which assumes permission to publish them without further
consideration.
© 2019 Mazda North American Operations, U.S.A.