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Mazda first rolled out its CX-8 to Australia in mid-2018 with a diesel-only line-up, but has since expanded the range to also include petrol options.
Slotting in between the mid-size CX-5 and large CX-9, the CX-8 offers seating for up to seven occupants, as well as the brand’s signature premium interior appointments.
The petrol engine is a 2.5-litre four-cylinder outputting 140kW/252Nm, while the 2.2-litre turbo-diesel unit makes 140kW/450Nm.
Regardless of engine or drivetrain, the CX-8 is fitted with a six-speed automatic transmission.
Wide doors allow easy entry to the front seat, where it’s clear that most switchgear and controls are focused on the driver.
The multi-adjustable steering wheel is precisely centred for unencumbered view of the analogue dials within the chunky rim and standard-fitment digital head-up display above. Finding the ideal position is no hardship.
Most functionality boxes are ticked: superbly crisp dials, excellent ventilation, plenty of storage (including large door pockets for bottles and such) and fine forward vision. The excellent climate control system also features independent middle-row controls. Useful.
However, the multimedia set-up in this Mazda throws up both good and bad points: the former include thoughtful placement of a BMW iDrive-style controller that is meant to mitigate eyes-off-road distraction; users can alternatively use the touchscreen access if the vehicle is stationary; and – once familiarised – the menu layout is simple to fathom.
But, a decade old now, the system is certainly ageing, with tardy responses, dated graphics and a low-rent map rendering that seems aftermarket.
Driver front/side vision is also hampered by massive door mirrors, thick A-pillar bases and a narrow rear window, so you’re left to rely on that smallish camera screen as well as the (thankfully effective) RTCA/driver-assist safety systems. And the climate-control buttons are too easily activated/deactivated by the placement of phones in the storage slot below.
The second row is where the CX-8 really starts to diverge from its shorter sibling.
Longer doors which very helpfully open to almost 90 degrees provide ample entry/egress, to a classy environment thanks to the SP’s smart, monochromatic (black) presentation, that lush seat trim and broad attention to detail. These include large centre air vents with full climate control (including heating for outboard occupants), one-touch power windows that go all the way down, a wide centre armrest that matches the front ones, offering cupholders, minor hidden storage and a pair of USB-A ports for charging duties. Grab handles, reading lights, coat hooks, huge door storage and map pockets further underline the Mazda’s family-friendly focus.
Finally, there’s the two rearmost seats, accessed via a simple push of an electric button on either side, followed by a gentle push forward, to reveal a sizeable gap for passengers to clamber past. Thanks, longer doors. It’s not too bad given this is a stretched midsized SUV.
But it’s really best for smaller people, as the knees-up posture can get tiring after a while. The backrest is quite upright and doesn’t recline either. And you won’t find body-facing air vents back there – though in 31ºC summer heat and humidity the air-con could be felt, mercifully.
For a tight third-row environment, it’s not too bad. Thankfully there’s space for big shoes to tuck underneath the second row; big windows flood light in; the folding full-sized headrests mean heads are neither touching nor baking beneath the back window; there’s storage and cupholder access; and exiting is child’s play thanks to a single-lever action that’s clearly defined.
The CX-8 Touring SP includes seven seats (of course), sliding and reclining middle-row seats, tri-zone climate control with second-row control, head-up display, auto on/off LED headlights, rain-sensing wipers, roof rails, power-folding side mirrors, an 8.0-inch touchscreen, satellite navigation, digital radio, Bluetooth connectivity, wireless Apple CarPlay/Android Auto smartphone support, power windows, remote central locking, push-button start, a leather-wrapped steering wheel, electric park brake with auto-hold and 19-inch alloys (with a space-saver spare wheel).
You'll also find front and rear parking sensors, a reversing camera, driver-fatigue checks and tyre-pressure monitors, as well as LED fog lights, keyless entry, heated and powered front seats, second-row centre armrest with USB charging ports, paddle shifters, an electrically actuated second-row seat slide function for one-touch third-row entry, blacked-out trim inside, synthetic leather/suede seat trim, driver’s seat memory and heated second-row outboard seats.
The sluggish performance and the erratic tachometer needle may not be related at all. That said, they could very well both be symptoms of the same problem. A lot of mechanics, when shown an erratic dashboard gauge, will start by checking for a bad earth point. A poor earth can lead to all sorts of problems, as a healthy flow of electricity is vital to the basic functions of any modern car.
But before you rush out to find an auto electrician, bear in mind that this sounds very much like a problem that would be covered by Mazda’s factory warranty. Provided you have had the car serviced correctly and it hasn’t been submerged in a flood or something equally drastic, the first step is to take it back to Mazda and allow the dealer to tackle the problem.
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In the old days, this would (probably) have been a simple matter of a faulty wiper switch. But on modern cars, functions like the wipers are controlled by a computer called the body-control module. If this starts to fail it can send odd signals to the various things it controls (wipers, lights, central locking, climate-control, entertainment systems and many more).
An automotive electrician might be able to pin-point the problem, and that’s a good place to start. But before you do that, try this: Disconnect the car’s battery and leave it overnight. When you reconnect the battery, you might just find the computer has reset itself and things return to normal. It can sometimes be just a temporary fix, but it’s definitely worth a try. And it’s free.
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Mazda (and other car-makers) have been having lots of problems with the oil level rising in the engines of some of their diesel models. The problem is caused by the Diesel Particulate Filter attempting to regenerate itself. In an ideal world, these diesel vehicles would be driven for at least an bour or so at freeway speeds at least once a month. That would get the exhaust system hot enough for the DPF to regenerate on its own (burn the contaminants from the exhaust to ash and expel them, basically).
But in cars that don’t see this sort of use and are more commonly driven around the suburbs at moderate speeds, the exhaust never gets hot enough for this to occur. So, the solution has been to inject extra diesel into the engine to make the exhaust hotter and, therefore, get it all to a temperature where DPF regeneration can occur. The problem is that some of that diesel can get into the sump of the engine where it dilutes the engine oil. And that’s why you’re seeing the level rising on the dipstick over a period of weeks and months.
Diluted engine oil is bad news because it may not lubricate and protect the engine as well as non-polluted oil. The warning light you’re seeing is telling you that you might be at that point and that an engine oil change is probably a good idea, even if the service interval hasn’t been reached yet. Just draining some of the contents of the sump away is not the answer as the oil is already diluted by the diesel.
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The CX-8 Touring SP’s seats are a combination of vinyl and suede-like cloth, which together up the premium ambience for those who don’t desire leather. Vegans, the SP is for you.
They’re comfortable, breathe well in hot weather and help locate occupants beautifully – though, on the other hand, we can’t imagine they’d be easy to clean after kids and/or pets spills. Electricity takes care of seat rake, reach and lumbar, with a handy memory setting to further help you find the right spot behind the lovely stitched steering wheel.
The middle-row backrests recline a few degrees, while the bases also slide, boosting their firm yet comfortable set-up. As do the lush seat trim.
Note that Mazda has gone to the trouble of putting the smaller portion of the 70:30 sliding middle seat on the kerbside, meaning that only one occupant needs to vacate it for third-row access.
The under-cushion sliding mechanism is easy to operate, and provides more-than-adequate legroom for taller riders. while forward and side vision is also unobstructed, giving the CX-8 a vast, airy feel. Interestingly, while not as wide as the CX-9, the seats are certainly roomy enough for three people, even if their shoulders may be touching.
Finally, there’s the two rearmost seats, accessed via a simple push of an electric button on either side, followed by a gentle push forward, to reveal a sizeable gap for passengers to clamber past.
Your tester is 178cm tall, and there’s sufficient space for two similarly-sized adults to travel back there. Head and shoulder room are fine. But it’s really best for smaller people, as the knees-up posture can get tiring after a while. The backrest is quite upright and doesn’t recline either.
The CX-8 with all seat backs erect can take 209 litres, extending to 242L with underfloor storage, while folding the third row boosts boot volume to 742/775L. The temporary spare lives underneath the floor.
The CX-8 SP Touring can go from 0-100km/h in 10.9 seconds.