2007 Mazda CX-9

The 2007 Mazda CX-9 is a three-row crossover SUV that offered a blend of sporty handling and family-friendly practicality. All 2007 CX-9 models came equipped with a 3.5-liter V6 engine producing 263 horsepower and 249 lb-ft of torque, paired with a six-speed automatic transmission. Owners often praise the CX-9’s stylish design, comfortable ride, and relatively engaging driving experience for its class. Common complaints often revolve around fuel economy, some reliability concerns, and the somewhat cramped third-row seating.

Engine

3.5L V6

• Timing Chain Failure
  • Description/Symptoms: Premature wear or failure of the timing chain. Symptoms include a rattling noise upon startup, particularly when the engine is cold, and potential engine misfires. Can eventually lead to complete engine failure.
  • Solution: Replacement of the timing chain, tensioners, and guides. Sometimes requires camshaft sprocket replacement.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Water Pump Failure
  • Description/Symptoms: The water pump begins to leak coolant. Can cause the engine to overheat if not addressed.
  • Solution: Replace the water pump. It is often recommended to also replace the thermostat and drive belt at the same time.
  • Estimated Cost to Fix: $400 - $800
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil leaks from various locations on the engine, including valve cover gaskets, front crankshaft seal, and rear main seal.
  • Solution: Replace the affected gaskets and seals.
  • Estimated Cost to Fix: $200 - $1,000+ (depending on the location of the leak)
  • Recalls: None Found

Transmission

6-Speed Automatic

• Transmission Slipping/Harsh Shifting
  • Description/Symptoms: The transmission slips between gears, shifts harshly, or fails to shift at all. Can be caused by low transmission fluid, worn valve body, or internal component failure.
  • Solution: Start with a transmission fluid flush and filter change. If the problem persists, the valve body may need to be replaced or the transmission rebuilt or replaced.
  • Estimated Cost to Fix: $200 (fluid flush) to $3,000+ (transmission rebuild/replacement)
  • Recalls: None Found
• Torque Converter Issues
  • Description/Symptoms: Shuddering or vibrations at low speeds, particularly when the torque converter is locking up. Can also cause stalling.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $800 - $1,500
  • Recalls: None Found

Suspension

• Strut and Shock Absorber Failure
  • Description/Symptoms: Reduced ride quality, excessive bouncing, and poor handling.
  • Solution: Replacement of the struts and/or shock absorbers.
  • Estimated Cost to Fix: $400 - $1,000+ (depending on whether you replace struts only or struts, shocks, and springs)
  • Recalls: None Found
• Control Arm Bushing Wear
  • Description/Symptoms: Clunking noises from the suspension, especially when going over bumps. Also, poor handling and uneven tire wear.
  • Solution: Replacement of the worn control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $200 - $800+ (depending on whether you replace bushings or the whole control arm)
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: The battery drains overnight or within a few days, even when the car is not being used. Can be caused by a parasitic draw from a faulty module, wiring issue, or a bad battery.
  • Solution: Diagnose and repair the source of the parasitic draw. Replace the battery if necessary.
  • Estimated Cost to Fix: $100 - $500+ (depending on the complexity of the issue)
  • Recalls: None Found
• Power Door Lock Failure
  • Description/Symptoms: Power door locks stop working intermittently or completely.
  • Solution: Replacing the door lock actuator(s).
  • Estimated Cost to Fix: $150 - $400 per door
  • Recalls: None Found

Exterior

• Rear Liftgate Strut Failure
  • Description/Symptoms: The rear liftgate fails to stay open and falls down.
  • Solution: Replace the liftgate struts.
  • Estimated Cost to Fix: $100 - $300
  • Recalls: None Found

Interior

• Air Conditioning Issues
  • Description/Symptoms: The air conditioning system blows warm air or stops working altogether. Can be caused by a refrigerant leak, compressor failure, or a faulty blend door actuator.
  • Solution: Repair the refrigerant leak, replace the compressor, or replace the blend door actuator.
  • Estimated Cost to Fix: $200 (recharge) to $1,200+ (compressor replacement)
  • Recalls: None Found

Summary

The 2007 Mazda CX-9, while offering a stylish and enjoyable driving experience, does have some common issues that prospective buyers should be aware of. The most significant concerns revolve around the engine, particularly the timing chain, and transmission. These repairs can be costly. Electrical issues, suspension wear, and air conditioning problems are also prevalent. Overall, while some issues are minor and inexpensive to fix, others can lead to significant repair bills. A thorough inspection by a qualified mechanic is recommended before purchasing a used 2007 Mazda CX-9.