2014 Mazda CX-9 Problems: 6 Known Issues
2014 model year · 4,000+ owner reports · Updated October 2026
According to Au7o's analysis of 4,000+ owner reports, the 2014 Mazda CX-9 has 6 documented known issues, with 4 rated critical. The most serious are Timing Chain Stretch on 3.7L V6 ($1,500-$3,500 repair), Water Pump and Coolant Crossover Pipe Leak (3.7L V6) ($1,500-$3,500 repair), Front Lower Control Arm Ball Joint Corrosion and Separation ($0-$0 repair) and Takata Passenger Airbag Inflator Rupture (Do Not Drive Advisory) ($0-$0 repair). The most commonly reported issue is Timing Chain Stretch on 3.7L V6 with 2,400 owner reports. Across all issues with published estimates, repair costs range from $150 to $3,500. DIY maintenance guides at au7o.io.
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All 6 Known Issues
NHTSA Recalls7 recalls
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Mazda North American Operations (Mazda) is recalling certain 2014-2015 Mazda CX-9 vehicles sold, or ever registered in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands or "Zone A." Additionally, unless covered in "Zone A," Mazda is recalling certain 2011-2013 Mazda6, 2011-2012 CX-7, and 2011-2015 CX-9 sold, or ever registered in the states of Arizona, Arkansas, Delaware, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia, or "Zone B." Additionally, unless covered in Zone A or Zone B, Mazda is recalling certain 2010-2013 Mazda6, 2010-2012 CX-7, and 2010-2015 CX-9 vehicles ever registered in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming or "Zone C." These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
STEERING
Mazda North American Operations (Mazda) is recalling certain model year 2016 CX-3 vehicles manufactured June 1, 2015, to December 2, 2015, 2013-2014 Mazda2 vehicles manufactured July 3, 2013, to August 8, 2014, 2014-2016 CX-5 vehicles manufactured January 19, 2013, to December 2, 2015, and 2013-2015 CX-9 vehicles manufactured December 6, 2012, to July 31, 2015. The lower mounting nuts and bolts that attach the front strut assembly to the steering knuckle may loosen, allowing the steering knuckle to separate.
SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT
Mazda North American Operations (Mazda) is recalling certain model year 2007-2014 CX-9 vehicles manufactured October 24, 2006, to December 28, 2013. The affected vehicles have front suspension ball joints that may corrode from water leaking into the fitting.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Mazda North American Operations (Mazda) is recalling certain 2007-2012 CX-7, CX-9, and 2009-2012 Maza6 vehicles. These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
Mazda North America Operations (Mazda) is recalling certain 2009-2011 Mazda6, and 2007-2011 CX-7 and CX-9 vehicles. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
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Frequently Asked Questions
What are the most common Mazda CX-9 problems?
According to Au7o's analysis of 4,000+ owner reports, the 2014 Mazda CX-9 has 6 documented issues. The most frequently reported are: Timing Chain Stretch on 3.7L V6, Water Pump and Coolant Crossover Pipe Leak (3.7L V6), Front Lower Control Arm Ball Joint Corrosion and Separation. Of these, 4 are rated critical and should be addressed promptly.
Is the Mazda CX-9 reliable?
The 2014 Mazda CX-9 has 6 known issues documented across 4,000+ owner reports. 4 issues are rated critical: Timing Chain Stretch on 3.7L V6 and Water Pump and Coolant Crossover Pipe Leak (3.7L V6) and Front Lower Control Arm Ball Joint Corrosion and Separation and Takata Passenger Airbag Inflator Rupture (Do Not Drive Advisory). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mazda CX-9 problems?
Repair costs for known Mazda CX-9 issues range from $0 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Timing Chain Stretch on 3.7L V6, typically costs $1,500-$3,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2007-2015 Mazda CX-9 Timing Chain Stretch on 3.7L V6?
The Ford-derived V6 in first-generation CX-9 (3.5L in 2007, 3.7L Duratec from 2008) suffers from timing chain stretch, typically between 80,000-120,000 miles. Chain guides and tensioners wear, causing timing to retard and triggering check engine codes. If not addressed, can lead… Repairs typically run $1,500-$3,500. Severity: high.
What is the 2007-2015 Mazda CX-9 Water Pump and Coolant Crossover Pipe Leak (3.7L V6)?
The Ford-derived Cyclone V6 (3.5L in 2007, 3.7L from 2008) in first-gen CX-9 models has a water pump mounted in the engine V that is driven by the timing chain. The pump seal and the coolant crossover pipe gaskets are common failure points, causing coolant to leak internally or e… Repairs typically run $1,500-$3,500. Severity: high.
What is the 2007-2014 Mazda CX-9 Front Lower Control Arm Ball Joint Corrosion and Separation?
Certain 2007–2014 CX-9 vehicles built October 24, 2006–December 28, 2013 are covered by recall 15V451 / Mazda 8515G. Water and road salt can enter the front lower ball-joint fitting, causing corrosion, looseness and a possible rattle. Continued operation can lead to separation of… Repairs typically run $0-$0. Severity: high.
What is the 2007-2015 Mazda CX-9 Takata Passenger Airbag Inflator Rupture (Do Not Drive Advisory)?
Recalled Takata passenger-airbag inflators in certain 2007–2015 CX-9 vehicles can rupture during deployment, sending metal fragments into the cabin. Heat, humidity and temperature cycling can degrade the propellant. Mazda's August 2024 do-not-drive advisory covers unrepaired affe… Repairs typically run $0-$0. Severity: high.
What is the 2007-2015 Mazda CX-9 Transfer Case Fluid Leak (AWD Models)?
AWD-equipped CX-9 models develop fluid leaks from the power transfer unit (PTU) / transfer case. The output shaft seal and case halves are common leak points. Low fluid levels lead to increased wear, whining noises, and eventual transfer case failure. Fluid changes are not part o… Repairs typically run $150-$2,000. Severity: medium.
What is the 2007-2015 Mazda CX-9 A/C Evaporator Core Leak and Refrigerant Loss?
First-generation CX-9 models are prone to A/C evaporator core leaks, causing gradual refrigerant loss and reduced cooling performance. The evaporator develops pinhole leaks from internal corrosion, often accelerated by moisture and debris in the system. Symptoms worsen in hot wea… Repairs typically run $800-$1,800. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.