The 2008 CX-9 with the 3.7L V6 suffers from catastrophic engine failures due to piston ring land cracking and oil dilution issues, while the transmission oil cooler routinely fails and can destroy the transmission if not caught early. These are expensive, platform-defining problems that overshadow an otherwise decent three-row SUV.
Piston Ring Land Failure and Engine Self-Destruction
Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Excessive oil consumption (1+ quart per 1,000 miles), White or blue smoke from exhaust on cold start or acceleration, Misfires, rough idle, loss of power, Metallic rattling or knocking as wear progresses
Fix: The 3.7L V6 cracks piston ring lands due to thermal stress and design flaws. Oil consumption accelerates, coolant can enter cylinders through compromised rings, and bearings fail from diluted oil. Requires short block replacement or complete engine rebuild with updated pistons if available. 18-24 hours labor for R&R plus machine work.
Estimated cost: $4,500-8,000
Transmission Oil Cooler Internal Failure
Common · high severity
Typical onset: 80,000-130,000 mi
Symptoms: Transmission fluid appears milky or strawberry-colored (coolant contamination), Harsh or delayed shifts, Transmission overheating warnings, Coolant level drops without visible leaks
Fix: The internal transmission cooler inside the radiator fails, allowing coolant and ATF to mix. Coolant destroys the transmission's clutch packs and valve body within days if driven. Requires new radiator, transmission fluid flush (if caught early), or full transmission replacement/rebuild if contamination went unnoticed. 3-5 hours labor for cooler replacement, 12-18 hours if transmission is damaged.
Symptoms: Clunking noise over bumps from front end, Wandering or loose steering feel, Uneven or excessive tire wear on inside edge, Visual play when inspecting wheel with pry bar
Fix: Front lower ball joints wear prematurely and were subject to NHTSA recall, but many vehicles fall outside VIN ranges. Failure can cause wheel separation and loss of control. Replace both lower control arms with ball joints as assembly (non-serviceable). 2.5-3 hours labor, requires alignment.
Estimated cost: $600-900
Transmission Mounts Collapse
Common · medium severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunk or jolt when shifting from Park to Drive/Reverse, Vibration at idle that changes when shifting to Neutral, Visible engine/transmission movement when revving in Park
Fix: Hydraulic transmission mounts fail from heat and stress. The rear mount is most common. Engine rocks excessively during shifts causing driveline vibration. Replace failed mount(s); rear mount is 1.5 hours, front is 2 hours labor.
Estimated cost: $300-500
Power Transfer Unit (PTU) Fluid Starvation and Failure
Occasional · high severity
Typical onset: 60,000-100,000 mi
Symptoms: Whining or grinding noise from front of vehicle during acceleration, Binding sensation in tight turns, AWD warning light illuminated, Metal shavings in PTU fluid during service
Fix: The PTU runs hot and Mazda didn't specify service intervals. Fluid breaks down, bearings and gears fail. Some owners report low fluid from factory. Requires PTU replacement if damaged; fluid changes every 30k can prevent failure. 4-5 hours labor for PTU R&R.
Symptoms: Tailgate won't stay open or drops suddenly, Requires propping open with hand or object, Slow or weak lift when opening
Fix: Gas struts lose pressure over time. Safety issue if tailgate falls on someone. Replace both struts as a pair. 0.5-1 hour labor, simple DIY job.
Estimated cost: $150-250
Owner tips
Check engine oil level every 500 miles religiously—excessive consumption is your early warning for piston failure
Inspect transmission fluid color every oil change; any pink or milky appearance means stop driving immediately
Service PTU fluid every 30,000 miles even though Mazda says 'lifetime'—it's cheap insurance
Have a pre-purchase inspection include compression test, leak-down test, and transmission fluid condition check
Budget $1,000/year for unexpected repairs after 80,000 miles—this platform has expensive failure modes
Avoid unless you're getting it cheap with full service records proving PTU maintenance and low oil consumption—the engine and transmission failures are too expensive and too common to gamble on.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 19V782000
2019-10-31 · EA15001
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.
Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Remedy: Owners are advised not to drive their vehicles until the repair has been performed. Mazda will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. The recall began December 3, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 1317F. Note: This recall supersedes recalls 16V356 and 17V012.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 17V457000
2017-07-18 · EA15001
Mazda North America Operations (Mazda) is recalling certain 2012 CX-7, CX-9 and Mazda6 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 included in "Zone A" above, Mazda is recalling certain 2009 CX-7, CX-9 and Mazda6 vehicles sold, or ever registered in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B."
Additionally, unless included in "Zone A" or "Zone B" above, Mazda is recalling certain 2007-2008 CX-7 and CX-9 sold, or 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.
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 rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: Owners are advised not to drive their vehicles until the remedy is performed. Mazda will notify owners, and dealers will replace the front passenger side air bag inflator with an alternate inflator, free of charge. The recall began October 4, 2017. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 1317F. Note: This recall supersedes recall 17V-012.
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE · 17V429000
2017-06-29 · EA15001
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.
Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
Remedy: Owners are advised not to drive their vehicles until the remedy is performed. Mazda will notify owners, and dealers will replace the passenger frontal air bag inflator with an alternate inflator, free of charge. The recall began on August 30, 2017. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 1317F. Note: This recall supersedes recall 16V356 and all vehicles that were not remedied under that campaign are now covered by this one.
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.
Consequence: Over time, the ball joint corrosion may result in the front lower control arm separating from the ball joint, causing a loss of steering control and increasing the risk of a crash.
Remedy: Mazda will notify owners, and dealers will replace both the left and right lower control arms, free of charge. The recall began on September 14, 2015. The recall will begin with model year 2007-2009 vehicles registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, Washington D.C., West Virginia, and Wisconsin. The second phase will be for model year 2010-2014 vehicles in the same states. Finally, all remaining vehicles will be remedied. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 8515G.
EQUIPMENT · 09E011000
2009-04-02
THULE, INC. IS RECALLING 2,323 OWNER-INSTALLED ROOF-MOUNTED FIT KITS, MODELS 3068 AND 3069, MANUFACTURED BETWEEN JANUARY 1, 2008 AND FEBRUARY 28, 2009 THAT ARE USED WITH THULE PODIUM FOOT PACKS, MODELS 460 AND 460R. THESE FIT KITS WERE SOLD AS AFTERMARKET EQUIPMENT FOR USE ON THE VEHICLES LISTED ABOVE. THE BOLT(S) USED TO SECURE THE FOOT TO THE VEHICLE WAS MANUFACTURED TO A HARDNESS THAT MAY CAUSE THE BOLT(S) TO BE BRITTLE AND POTENTIALLY BREAK UNDER STRESS.
Consequence: THIS MAY RESULT IN THE BOLT(S) SNAPPING OFF DURING USE OR WITHOUT A LOAD. THE UNSECURED RACK AND LOAD CAN THEN COME LOOSE WHILE DRIVING CREATING A POTENTIAL ROAD HAZARD, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: THULE WILL MAIL A RETRO FIT KIT ALONG WITH REPAIR INSTRUCTIONS TO OWNERS FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OR BEFORE APRIL 13, 2009. OWNERS MAY CONTACT THULE TOLL-FREE AT 1-800-238-2388.
MAZDA IS RECALLING 30,600 MY 2007-2009 CX9 VEHICLES EQUIPPED WITH POWER ADJUSTABLE SEAT WITH POSITION MEMORY FUNCTION. THE SEAT HARNESS ROUTED UNDERNEATH THE SEAT CUSHION MAY INTERFERE WITH THE FRONT COVER BRACKET WHICH IS ATTACHED ON THE FRONT SIDE OF THE SEAT CUSHION. DUE TO THIS THE COVERING OF THE SEAT HARNESS MAY BE DAMAGED, THE CORE WIRE OF THE HARNESS MAY TOUCH WITH THE BRACKET AND RESULT IN SHORT CIRCUIT.
Consequence: DRIVERS WILL EXPERIENCE CERTAIN FUNCTIONS THAT ARE UNCONTROLLABLE WHICH WILL CAUSE SERIOUS DIFFICULTIES IN DRIVING INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL INSPECT THE SEAT HARNESS AND FASTEN THE SEAT FRAME WITH A CABLE TIE. THE HARNESS COVERING WILL BE REPAIR FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR BEFORE MARCH 16, 2009. OWNERS MAY CONTACT MAZDA AT 1-800-222-5500.
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