Credov's researched list of the 3 faults the Mazda Mazda CX-7 is known for (2006–2012), 3 of them serious or costly. Each one says what to look for when you check the car, so you can spot it before you buy. Not every car has these faults: they are the ones worth checking on this model.
What to look for: Pull the dipstick: sludgy, gritty or strong-smelling oil points to carbon blocking the oil pick-up.
Why it matters: Once carbon blocks the oil pick-up the engine runs with no oil pressure and is usually destroyed, even on a well-serviced car, turning a cheap injector-seal job into an engine replacement. Oil condition and service history are the only warning most buyers get.
What to look for: Cold start then idle a couple of minutes, blip the throttle and watch for blue-white smoke.
Why it matters: A failing turbo can shed metal into the intercooler and engine on its way out, so a smoky cold start or a whine on boost caught now is far cheaper than a turbo failure that also damages the engine it feeds.
What to look for: Lie beside the car with a torch and look at the transfer case above the right front driveshaft for oil wetting.
Why it matters: Low oil from an unnoticed seal leak leads to a worn and eventually failed transfer case, and CarsGuide notes the repair is not always too difficult but can still be costly, so an oil-wetness check under the car is well worth the two minutes it takes.
Got a question about a Mazda Mazda CX-7? Ask Credov: a noise, a warning light, a part or how to fix it.
On top of the faults above, every Credov inspection covers the basics: fuel smell, leaks or filler rust, engine oil leaks, power steering fluid leak, drive belt cracks or squeal, rust underneath: chassis and mounts, engine mounts, engine oil level and colour, coolant level, colour and leaks, head gasket failure signs, cold start: rattle, knock or smoke, rough or hunting idle, engine running hot on gauge, gearbox or diff oil leak, swapped gearbox without lvv and more.
Researched by Credov from manufacturer recalls and service bulletins, owner reports and workshop sources. Repair prices are typical ranges, not quotes. See also fault codes and repair costs.