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Service bulletins for the 2011 Mazda Mazda6

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

248 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
01-016-18-35222018-10-09. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. On some vehicles, a sulfur smell or 'rotten egg' odor may be noticed coming from the exhaust system. The odor is usually noticed after a cold start, fast idle, extended periods of idling and full throttle acceleration. Sulfur smell is not an indication of an engine concern and will not cause reduced driveability or durability of the engine or any of its emission components. The sulfur smell or 'rotten egg' odor is caused by high amounts of sulfur in the gasoline being used in the vehicle. Sulfur is normally eliminated during the refining process, but the EPA regulation of sulfur in gasoline differs from state to state. Vehicles using fuel containing high amounts of sulfur will most likely emit sulfur smell from the exhaust system. When high sulfur fuel is burned, there is a chemical reaction in the catalytic converter causing the sulfur to oxidize. As the vehicle is driven, the oxidizing reaction odor in the converter will decrease with mileage and age.
01-007-14-2899A2017-05-04. Service bulletin. ENGINE. SOME VEHICLES MAY EXHIBIT AN UNUSUAL SQUEAK NOISE WHEN THE ENGINE IS IDLING, OR JUST AT THE MOMENT WHEN THE ENGINE IS SHUT OFF. THE NOISE MAY BE AUDIBLE FROM INSIDE THE VEHICLE IF ONE OR MORE WINDOWS ARE OPEN, OR IF ANY PASSENGER IS OPENING A DOOR TO EXIT THE VEHICLE. DUE TO ENGINE VIBRATION AND A LACK OF SEAL RING LUBRICATION, THE MESH IN THE SEAL RING (A) RIDES IN THE FLARED PORTION (B) OF THE CATALYTIC CONVERTER (C) RESULTING IN A SLIGHT NOISE FROM THE EXHAUST SYSTEM WHILE THE ENGINE IS RUNNING. THE FRICTION BETWEEN THE EXHAUST SYSTEM PARTS AND THE RESULTING SLIGHT NOISE ARE NORMAL. THIS FRICTION DOES NOT CAUSE BREAKAGE, GAS LEAKAGE, OR OTHER FUNCTIONAL PROBLEMS WITH THE VEHICLE’S EXHAUST SYSTEM. DURING NORMAL VEHICLE AGING, THE NOISE LEVEL MAY CHANGE AS THE SURFACE OF THE METAL FLANGE DETERIORATES. USU-ALLY THIS NOISE CANNOT BE HEARD WHEN THE ENGINE IS RUNNING, HOWEVER THE NOISE MAY BE HEARD IN A QUIET ENVIRON-MENT WHEN THE CUSTOMER IS OUTSIDE THE VEHICLE OR WHEN A DOOR OR WINDOW IS OPEN.
01-007-14-28992017-04-27. Service bulletin. ENGINE. SOME VEHICLES MAY EXHIBIT AN UNUSUAL SQUEAK NOISE WHEN THE ENGINE IS IDLING, OR JUST AT THE MOMENT WHEN THE ENGINE IS SHUT OFF. THE NOISE MAY BE AUDIBLE FROM INSIDE THE VEHICLE IF ONE OR MORE WINDOWS ARE OPEN, OR IF ANY PASSENGER IS OPENING A DOOR TO EXIT THE VEHICLE. DUE TO ENGINE VIBRATION AND A LACK OF SEAL RING LUBRICATION, THE MESH IN THE SEAL RING (A) RIDES IN THE FLARED PORTION (B) OF THE CATALYTIC CONVERTER (C) RESULTING IN A SLIGHT NOISE FROM THE EXHAUST SYSTEM WHILE THE ENGINE IS RUNNING. THE FRICTION BETWEEN THE EXHAUST SYSTEM PARTS AND THE RESULTING SLIGHT NOISE ARE NORMAL. THIS FRICTION DOES NOT CAUSE BREAKAGE, GAS LEAKAGE, OR OTHER FUNCTIONAL PROBLEMS WITH THE VEHICLE’S EXHAUST SYSTEM. DURING NORMAL VEHICLE AGING, THE NOISE LEVEL MAY CHANGE AS THE SURFACE OF THE METAL FLANGE DETERIORATES. USUALLY THIS NOISE CANNOT BE HEARD WHEN THE ENGINE IS RUNNING, HOWEVER THE NOISE MAY BE HEARD IN A QUIET ENVIRONMENT WHEN THE CUSTOMER IS OUTSIDE THE VEHICLE OR WHEN A DOOR OR WINDOW IS OPEN.
01-025-12-26992017-04-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SOME VEHICLES MAY EXHIBIT AN EXHAUST LEAKING NOISE FROM THE REAR OF THE VEHICLE. THE NOISE MAY BE CAUSED BY A GAP BETWEEN THE EXHAUST HANGER BRACKET AND FLANGE, WHICH ALLOWS MOISTURE TO ENTER AND CAUSE THE EXHAUST STUDS TO RUST AND POSSIBLY BREAK OFF. THE WELDING LOCATION OF THE EXHAUST HANGER BRACKET AND FLANGE HAS BEEN CHANGED TO ENSURE THE HANGER BRACKET AND FLANGE ARE FLUSH WITH NO GAPS TO ALLOW MOISTURE INTRUSION.
01-016-12-2640B2017-04-24. Service bulletin. ENGINE. SOME VEHICLES MAY EXHIBIT AN UNUSUAL SQUEAK NOISE WHEN THE ENGINE IS IDLING, OR JUST AT THE MOMENT WHEN THE ENGINE IS SHUT OFF. THE NOISE MAY BE AUDIBLE FROM INSIDE THE VEHICLE IF ONE OR MORE WINDOWS ARE OPEN, OR IF ANY PASSENGER IS OPENING A DOOR TO EXIT THE VEHICLE. DUE TO ENGINE VIBRATION AND A LACK OF SEAL RING LUBRICATION, THE MESH IN THE SEAL RING (A) RIDES IN THE FLARED PORTION (B) OF THE CATALYTIC CONVERTER (C) RESULTING IN A SLIGHT NOISE FROM THE EXHAUST SYSTEM WHILE THE ENGINE IS RUNNING. THE FRICTION BETWEEN THE EXHAUST SYSTEM PARTS AND THE RESULTING SLIGHT NOISE ARE NORMAL. THIS FRICTION DOES NOT CAUSE BREAKAGE, GAS LEAKAGE, OR OTHER FUNCTIONAL PROBLEMS WITH THE VEHICLE’S EXHAUST SYSTEM. DURING NORMAL VEHICLE AGING, THE NOISE LEVEL MAY CHANGE AS THE SURFACE OF THE METAL FLANGE DETERIORATES. USU-ALLY THIS NOISE CANNOT BE HEARD WHEN THE ENGINE IS RUNNING, HOWEVER THE NOISE MAY BE HEARD IN A QUIET ENVIRON-MENT WHEN THE CUSTOMER IS OUTSIDE THE VEHICLE OR WHEN A DOOR OR WINDOW IS OPEN.
01-002-13-27532017-04-13. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SOME VEHICLES MAY EXHIBIT A RATTLE NOISE AND/OR EXHAUST LEAKING NOISE FROM THE REAR OF THE VEHICLE. THE NOISE MAY BE CAUSED BY A GAP BETWEEN THE EXHAUST HANGER BRACKET AND FLANGE, WHICH ALLOWS MOISTURE CONTAINING ROAD SALT TO ENTER AND CAUSE THE EXHAUST STUDS TO RUST AND POSSIBLY BREAK OFF.THE WELDING LOCATION OF THE EXHAUST HANGER BRACKET AND FLANGE HAS BEEN CHANGED DURING VEHICLE PRODUCTION TO ENSURE THE HANGER BRACKET AND FLANGE ARE FLUSH, WITH NO GAPS THAT COULD ALLOW INTRUSION OF MOISTURE CONTAINING ROAD SALT.THE PURPOSE OF THIS BULLETIN IS TO CUT AND CLEAN THE WELDING LOCATION OF THE EXHAUST HANGER BRACKET AND RE-ATTACH IT, SO THE HANGER BRACKET AND FLANGE ARE FLUSH WITH NO GAPS, TO PREVENT INTRUSION OF MOISTURE CONTAINING ROAD SALT.
1080M2017-02-23. Service bulletin. ENGINE. 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.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.
01-016-16-32202017-02-23. Service bulletin. ENGINE. THERE IS A CONCERN THAT SOME WATER PUMPS ARE BEING REPLACED THAT ARE NOT FAULTY, DUE TO SIGNS OF A VERY SMALL COOLANT LEAK FROM THE BLEED HOLE. THIS SERVICE BULLETIN IS TO INFORM YOU ABOUT THE WATER PUMP SEALING MECHA-NISM AND THE CRITERIA IF REPLACEMENT IS NECESSARY OR NOT.
1103M2017-02-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE. THERE ARE TWO ENGINE TIMING CHAIN TYPES FOR THE 2009-2013 MAZDA6 3.7L. 1. ROLLER TYPE TIMING CHAIN IS USED ON THE 2009-2011 BUILT BEFORE DECEMBER 14, 2010. 2. SILENT TYPE TIMING CHAIN IS USED ON THE 2011-2013 BUILT AFTER DECEMBER 14, 2010. WORKSHOP MANUAL TIMING CHAIN REMOVAL/INSTALLATION [MZI 3.7 V6] HAS BEEN REVISED WITH CORRECTED PROCEDURES.
1102M2017-02-21. Service bulletin. ENGINE. WORKSHOP MANUAL EVAP SYSTEM LEAK INSPECTION USING THE M-MDS HAS BEEN DISCONTINUED FOR SOME MODELS. INSTEAD, THE WORKSHOP MANUAL EVAP SYSTEM LEAK INSPECTION USING EVAP LEAK TESTER WILL BE USED TO TROUBLESHOOT EVAP SYSTEM LEAKS.
SA2792017-02-14. Service bulletin. ENGINE. PLEASE BE AWARE THAT THE WORKSHOP MANUAL PROCEDURE FOR THE 2009 THROUGH 2012 MAZDA6 (WITH 3.7L ENGINE) TIMING CHAIN IS INCORRECT. THE PROCEDURE WILL BE CORRECTED ON MS3 BY THE END OF APRIL. IN THE MEANTIME, REFER TO THE 2013 MAZDA6 WORKSHOP MANUAL FOR THE CORRECT TIMING CHAIN PROCEDURE.TIMING CHAIN PARTS INFORMATION:PART NUMBER CY01-12-201A WAS USED IN MASS-PRODUCTION UP TO DECEMBER 14, 2010, PART NUMBER CA51-12-201 WAS USED IN MASS-PRODUCTION BEGINNING ON DECEMBER 14, 2010. NOTE: PART NUMBER CA51-12-201 CAN BE USED ON 2009-2012 MAZDA6 VEHICLES WITH A 3.7L ENGINE.
1080M2016-12-01. Service bulletin. ENGINE. 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.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
SA2792016-11-29. Service bulletin. ENGINE. PLEASE BE AWARE THAT THE WORKSHOP MANUAL PROCEDURE FOR THE 2009 THROUGH 2012 MAZDA6 (WITH 3.7L ENGINE) TIMING CHAIN IS INCORRECT. THE PROCEDURE WILL BE CORRECTED ON MS3 BY THE END OF APRIL. IN THE MEANTIME, REFER TO THE 2013 MAZDA6 WORKSHOP MANUAL FOR THE CORRECT TIMING CHAIN PROCEDURE.TIMING CHAIN PARTS INFORMATION:PART NUMBER CY01-12-201A WAS USED IN MASS-PRODUCTION UP TO DECEMBER 14, 2010, PART NUMBER CA51-12-201 WAS USED IN MASS-PRODUCTION BEGINNING ON DECEMBER 14, 2010. NOTE: PART NUMBER CA51-12-201 CAN BE USED ON 2009-2012 MAZDA6 VEHICLES WITH A 3.7L ENGINE.
01-025-122016-04-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
01-012-142016-04-12. Service bulletin. ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
01-007-142016-04-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
01-007-142016-04-12. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
00-004/122016-03-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
01-016-122016-03-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
01-002-132016-03-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; TIRES. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
SB-01-001-122012-04-18. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MAZDA: MIL ON WITH DTC'S P0123 AND / OR P0222. THIS COULD HAPPEN DUE TO ABNORMAL ELECTRICAL NOISE WITHIN THE ENGINE HARNESS. *KB

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.