Question 1

My 2011 Mazda CX-9 is vibrating while driving

Accepted Answer

Without knowing more, your problem could be caused by quite a few different things, including wheel bearings, driveshafts, brake rotors and even worn suspension components. But a really common cause of a vibration at a particular speed is a wheel that has shed one or more of its little balancing weights. Given the parlous state of this nation’s roads at the moment, hitting a big pothole is a pretty good bet right now. And the shock of that impact is a typical way for the wheel to shed its balance weights. These small, lead weights are added to the wheel when a tyre shop fits new tyres. The idea is to use the lead to balance the wheel so it spins smoothly. Lose the weight and you suddenly have an out-of-balance wheel and tyre and a vibration is a likely consequence. A good tyre shop will be able to check this for you.

Question 2

Is a 2008 Mazda CX-9 worth keeping after reaching 300,000km?

Accepted Answer

That's quite high mileage, but in a modern car with vastly better metallurgy, engineering design and oil quality (particularly multi-grade oil) it's not impossible for a car with that sort of mileage to still be in perfectly serviceable condition. Frankly, if you're not after something newer with newer tech and convenience, and you're still happy with the Mazda, the advice is probably to keep it and drive it till it will drive no further. As it is, if it's getting close to 300,000km, it's not worth very much to trade-in or sell second-hand, so keeping it and squeezing every last kilometre out of it is the budget-conscious way to go. The exception would be if a bunch of little things all go wrong at once. At which point, you're probably wise to quit it  - even though it's worth very little - as a means of not throwing good money after bad.

Question 3

The bonnet cable on my 2009 Mazda CX-9 snapped, how do I open it?

Accepted Answer

In some cases, with some versions of the CX-9, you can get a long screwdriver in between the bonnet and grille and manually flip the catch that will allow the bonnet to spring open. The trick is that you have to know where the catch is and since you can't see in there, it can be very difficult if not impossible. If you have access to one, a borescope (a tiny camera on a thin, flexible shaft, might get you to the point where you can identify the latch and successfully aim the screwdriver. But at all times, you risk damaging the grille or bonnet. You could take the car to a Mazda dealer or specialist who has probably seen this thing before and may have a few short-cuts to get the bonnet open. And since you're going to need a new cable anyway, you're then in the right place. If the job is a really tough one, you may find you need to remove the grille and even the front bumper to gain the access you need.

Question 4

The passenger door hinge has been snapped off my 2020 Mazda CX-9 TC Sport

Accepted Answer

If the door flies open when you unlatch it, it sounds as though the problem might be with the check-strap, rather than the hinge. The check-strap has the job of limiting the amount the door can open and avoid it flinging into whatever is parked beside you. If the actual hinge was the problem, the door would almost certainly drop when you opened it, making it very difficult to close again. In either case, though, it should be a pretty clear case of a legitimate warranty claim, and a 2020 Mazda is still well within the factory warranty period, regardless of whether you're the original owner or not. Take the car straight back to the dealership you bought it from and there should be no arguing over having it fixed free of charge. I'm a bit surprised a car dealership would sell a car with this sort of problem, but it might simply be that the item was overlooked when the vehicle was being prepared for sale. The bottom line is that this is Mazda's problem, not yours and according to the warranty, it should be fixed for free. The only exception to that would be if the damaged part was caused by previous crash-damage, but even then, the second-hand car warranty offered by the dealer should cover such a pre-existing problem.

Question 5

Why did my sunroof break while driving my 2018 Mazda CX-9?

Accepted Answer

It sounds like there’s a bit of confusion here over what actually caused the glass to break. It’s not entirely unknown for sunroof glass to shatter in extremes of heat or vibration, and other times, a car that has been poorly repaired after a crash can put stresses on the glass it was never designed for. The glass could simply have been struck by a flying rock or piece of debris. How you interpret those things will determine whether you think the breakage is a valid warranty claim or not. The fact that the dealership that examined your car can’t say what those 'external factors' were, only deepens the mystery. In the end, I approached Mazda Australia with your case, who agreed to take a second look at the circumstances. The good news is that Mazda has applied the benefit-of-the-doubt judgment and agreed to fix your car under warranty. But it’s worth mentioning that any car owner unhappy with the service or consideration given by a dealership doesn’t have to let it rest there. All car brands have a customer service department, and this should be your next port of call. From there it’s on to the ACCC. In some cases it’s worth getting an independent inspection of any damage to try to come to a conclusion over what really happened. The State motoring clubs are a good starting point for this service.

Question 6

Mazda 9 - Will we ever see a successor to the 929?

Accepted Answer

Mazda is unlikely to introduce a sedan larger than the Mazda6, due to the declining sales of larger sedans globally in favour of SUVs. However, with Mazda marching upmarket and its ties with Toyota strengthening, a joint-venture project with Toyota or even Lexus, using Mazda's new rear-drive platform and inline six-cylinder engine range, may make a model-sharing luxury flagship – a modern-day 929 in other words – a possibility. But there are currently no plans that we know of pertaining to such a model, sadly. We hope this helps.

Question 7

Are there plans for a new Mazda CX-9?

Accepted Answer

Mazda introduced this version of the CX-9 in mid-2016. There have been a couple of facelifts since then (including some specification and model shuffling, as recently as late last year) but there probably won’t be an all-new CX-9 for at least another few years. Based on the previous model’s eight-year lifespan, you could figure on 2024 or so for an all-new CX-9 and you might be getting close.

Question 8

How much should I pay to replace the transfer-case on my 2010 Mazda CX-9?

Accepted Answer

I’m not in a position to guide you around the financial aspects of this problem, Joseph, but it remains that the transfer-case in this model Mazda has, indeed, earned a very patchy reputation. It seems that Mazda never specified an oil-change interval for the transfer-case and, over time, the oil can break down and lead to high operating temperatures and internal wear of the mechanical parts. This can include metal fragments breaking off and damaging other components, as well as the high temperatures causing fusing (damage) to the metal parts. In some cases, that can also damage the spline shaft that joins the transmission to the transfer-case and, if that happens, the transmission will also be severely damaged. This has been known to occur in cars with as little as 70,000km on board. The reason the transfer-case oil wasn’t changed when you had the car serviced is simply because that task is not listed as a service item for this car. Which was, remember, the problem in the first place. Most workshops now agree that the CX-9’s transfer-case oil be changed every 60,000km or so, but sadly, it seems that’s all a bit too late for you. There was a Special Service Bulletin issued for this problem in the USA, but don’t assume that this will also apply to Australian Mazdas. That said, I’d still be having a chat with Mazda Australia’s customer service department.

Question 9

Mazda CX-9 2015: Broken seat heigh adjuster.

Accepted Answer

This is a classic case of the dealer quoting you the factory price for the factory part. Which means the part will be brand-new and identical to the one that’s broken. The problem with parts like these is that they don’t tend to break very often, so there are no cheaper brands of replacement parts available. The first thing to do would be to try an independent workshop, maybe even a Mazda specialist, who is very likely to be able to carry out this job for considerably less money (and I agree; $2000-plus to replace a manual seat base in a five-year-old car is getting up there). Your second option is to do what older-car owners having been doing for decades and hit the wrecking yards. You’re looking for a crashed CX-9 which an undamaged seat base. Which, if it’s the same model and trim level, should bolt right in with few hassles. Make sure the replacement base you’ve found hasn’t been bent, twisted or otherwise damaged in the crash that led the car to the wrecking yard in the first place. But all things being equal, it would be a simple job for a competent mechanic and could save you many hundreds of dollars. To be honest, like you, I’m a bit surprised at the quoted price for a new seat base, given that the adjuster is a manual one and not electrically-powered, which should mean it’s a pretty simple device.

Question 10

What are the best 7-seat SUV's?

Accepted Answer

A better option for someone with a tribe to transport would be a peoplemover, such as the Kia Carnival, Hyundai iMax, or VW Transporter. They’re made for that purpose and much more practical than an SUV.

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