Launched in 2006, the Mazda CX-9 is the largest SUV in the Japanese manufacturer's line-up. Spacious and versatile, it won over a wide audience thanks to its comfort and performance. After a first generation produced until 2015, a second generation brought notable improvements in design, technology and powertrain, including the Mazda CX-9 gearbox.
Regular maintenance of this transmission is essential to its longevity. EDEN BOITES, specialist in reconditioned gearboxes, shares its expert advice.
The Mazda CX-9 Gearbox: Key Features
The CX-9 is fitted with an automatic gearbox — no manual option is offered on this model, which is aimed primarily at the North American market. The first generation used a six-speed F21 automatic gearbox, while the second generation adopts a more modern six-speed unit of the Skyactiv-Drive type.
Designed for smooth gear changes, these gearboxes are paired with all-wheel drive on certain models, providing better power distribution between the front and rear wheels. Where all-wheel drive is not fitted, the vehicle is front-wheel drive, with power delivered from the engine to the front wheels.
Essential Steps to Protect Your Gearbox
Drive Smoothly
Even a robust automatic gearbox will wear more quickly with aggressive driving. Avoid sharp acceleration and heavy braking, always come to a complete stop before changing direction, and never use the park position as a substitute for the handbrake.
Keep on Top of Transmission Fluid Changes
Gearbox oil changes are crucial: an automatic gearbox requires more frequent servicing than a manual, so always follow the recommended intervals. Between changes, monitor the fluid level and condition — an abnormal drop indicates a leak, while dark colouring or a burning smell are both good reasons to visit a garage. Our guide on the differences between manual and automatic gearboxes provides further guidance.
Watch Out for Warning Signs
Unusual noises during gear changes, slipping or a sensation of the gearbox hunting, and a general drop in performance are all signs that you should consult a mechanic promptly.
All-Wheel Drive and Its Maintenance
On CX-9 models fitted with all-wheel drive, power is distributed between the front and rear axles via additional components such as the transfer case and rear differential. These components have their own lubricants, and checking them should not be overlooked: worn fluid encourages overheating and gear wear. On a large, heavy SUV that is often driven under load, these stresses are all the more significant. Avoid engaging all-wheel drive on high-grip surfaces at low speed during tight manoeuvres, as this places strain on the drivetrain. Finally, follow the manufacturer's recommendations for changing all fluids: thorough maintenance ensures balanced traction and protects the gearbox.
What to Do in the Event of a Breakdown?
Some faults can be repaired at a garage, but advanced deterioration sometimes means the gearbox must be replaced entirely. A new gearbox is expensive and can take a long time to source; a second-hand unit offers no guarantee of quality. Our reconditioned gearboxes represent the most balanced solution: stripped down, cleaned, inspected and tested, they deliver high reliability at a price comparable to second-hand. If the exact model is not in stock, we can recondition your own Mazda gearbox.
Frequently Asked Questions
Is the CX-9 Available with a Manual Gearbox?
No. Aimed primarily at the North American market, the CX-9 is offered exclusively with a six-speed automatic gearbox.
Why Does an Automatic Gearbox Require More Maintenance?
It relies on pressurised fluid and hydraulic components, meaning its oil must be monitored and changed more frequently than on a manual gearbox.
Does the All-Wheel Drive System Need Separate Maintenance?
Yes: the transfer case and rear differential have their own fluids, which must be checked and renewed in line with the manufacturer's recommendations.
What If My Reference Is Not in Stock?
We recondition your existing gearbox using the same quality process before returning it to you.
Why Choose EDEN BOITES?
EDEN BOITES strips, cleans, inspects and tests every gearbox before rebuilding it, delivering a reliable unit at a controlled price. You benefit from a warranty of up to 24 months, the option to pay in up to 10 instalments, and a satisfaction-or-refund guarantee on our exchange units, subject to our Terms and Conditions. Delivery covers France and the European Union, with a lead time confirmed on quote, and your old unit is collected at the point of delivery. Explore our range of Mazda gearboxes and our dedicated guides for the Mazda CX-7 and the Mazda CX-5.
