2007 Mazda CX-9 Reliability ReportKeepScore 78/100 · top failure points · buy or avoid
Quick Facts · 2007 Mazda CX-9
- Scores roughly in line with adjacent Mazda CX-9 years — consistency that often signals a stable platform generation.
- The system most likely to surface first: power transfer unit (ptu) (major severity).
- Has 5 NHTSA recalls on record — the most notable involves the air bags:frontal:passenger side:inflator module.
2007 Mazda CX-9: Buy or Avoid?
The 2007 Mazda CX-9 is a stylish and engaging three-row SUV, but its early model year comes with a few significant caveats, most notably the notorious Power Transfer Unit (PTU) on AWD models. While many owners enjoy trouble-free motoring, neglecting critical maintenance or ignoring early warning signs can lead to substantial repair bills, making a thorough pre-purchase inspection absolutely crucial.
While the 2007 Mazda CX-9 offers a compelling package of style and driving dynamics, the serious and expensive risk of PTU failure on AWD models, combined with potential transmission and water pump issues, dictates a cautious approach. It can be a great value if you find a well-maintained FWD model or an AWD with do…
Best Model Years
2010-2012 (post-facelift, some PTU improvements)
Years to Avoid
2007-2008 (first generation, highest PTU risk)
Biggest Strengths
- Engaging driving dynamics for an SUV
- Robust 3.5L V6 engine (when properly maintained)
- Roomy and well-appointed interior for its class
2007 Mazda CX-9 — Known Trouble Spots
The systems that tend to fail first on the 2007 Mazda CX-9, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
On AWD models, the PTU is prone to premature failure due to insufficient lubrication or a flawed design, leading to gear grinding noises, fluid leaks, and eventual complete failure. This can be a very expensive repair, often requiring re…
The Aisin 6-speed automatic, while generally solid, can develop harsh shifting, especially between 2nd and 3rd gear, due to solenoid issues or worn valve bodies. Neglected fluid changes accelerate wear.
The internal water pump on the 3.5L V6 can fail, requiring significant labor to replace as it's driven by the timing chain. VVT (Variable Valve Timing) actuators and solenoids can also stick, causing rough idle or reduced performance.
2007 Mazda CX-9 Mileage Danger Zones
The mileage windows when the 2007 Mazda CX-9 most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, most vehicles are still under original warranty, and only minor wear items are typically seen. Any issues here would likely be factory defects.
Maintenance Zone
This mileage often requires significant scheduled maintenance, including spark plugs, fluid changes (transmission, differential, PTU if AWD). Early signs of suspension wear may appear.
Elevated Risk Zone
Components that often fail after warranty expiration become more prevalent. PTU failure risk increases significantly, as does the chance of internal water pump issues.
High Risk Zone
Major components like the engine and transmission are working hard. Neglected maintenance will result in expensive failures. Rust can become structural, and electrical gremlins may appear.
2007 Mazda CX-9 Ownership Cost Outlook
What it typically costs to keep the 2007 Mazda CX-9 on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$450-700
Moderate Repairs
$600-1,800 occasionally
How Long Does the 2007 Mazda CX-9 Last?
Focus on vehicles with comprehensive service records. Lower mileage is certainly preferable for the 2007 CX-9, ideally below 100,000 miles, but high mileage with documented PTU and transmission service is better than low mileage with no history.
What 2007 Mazda CX-9 Owners Actually Say
What Owners Love
- Engaging and fun-to-drive feel for an SUV
- Stylish exterior design that still looks good today
- Comfortable seating for all three rows
- Ample cargo space with seats folded down
Common Frustrations
- Poor fuel economy (common for the era)
- The dreaded PTU failure on AWD models is a huge financial headache
- Road noise can be noticeable at highway speeds
- Interior plastics can feel a bit cheap in some areas
Who Should Buy the 2007 Mazda CX-9?
Best For
- Buyers prioritizing driving enjoyment in a three-row SUV
- Families needing occasional third-row seating
- Those who can afford potential moderate-to-major repairs
Not Ideal For
- Budget-constrained buyers who can't absorb a $3,000+ repair
- Anyone who neglects vehicle maintenance
How the 2007 Mazda CX-9 Compares to Rivals
The 2007 CX-9 offers a more engaging drive than many competitors but trails some in overall long-term reliability due to its specific drivetrain weaknesses, particularly the PTU. It strikes a good balance between the driving dynamics of European SUVs and the practicality of Ja…
More Reliable Than
- 2007 Ford Edge (some transmission issues)
- 2007 Dodge Durango (mixed reliability)
- 2007 Nissan Murano (CVT concerns)
Comparable To
- 2007 Honda Pilot (some VCM issues)
- 2007 Hyundai Santa Fe (some engine oil consumption)
- 2007 Toyota Highlander (generally strong, but bland)
Safety Recalls on the 2007 Mazda CX-9
5 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.
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.
What breaks on the 2007 Mazda CX-9?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
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Mazda CX-9 — Year-by-Year Comparison
Compare KeepScores across nearby years of the Mazda CX-9. Click any year for its full report.
Competing 2007s Worth a Look
Similar class, similar year range — ranked by KeepScore.
Relevant Products for Your 2007 Mazda CX-9
Parts and accessories matched to your 2007 Mazda CX-9
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Frequently Asked Questions
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