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2010 Mazda CX-9: problems, recalls and what it’s worth

Known weak spot on this generation: 3.5 / 3.7 Cyclone (or 3.0 Duratec) — internal water pump. 6 recall campaigns to confirm with a dealer. A lot of owner complaints, 47% about brakes.

Before you buy Pull the dipstick and oil cap and look for a tan/milky emulsion; check for unexplained coolant loss. A documented water-pump/timing job resets the clock.

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The full report adds this car’s market value and what to offer.

Known problems on the 2010 Mazda CX-9

3.5 / 3.7 Cyclone (or 3.0 Duratec) — internal water pump $1,200–$2,800 to fix

On these V6es the water pump is driven by the timing chain and lives inside the engine — when the seal fails, coolant goes straight into the oil (a milkshake) with little warning, and the repair means removing the timing cover.

Check for: Pull the dipstick and oil cap and look for a tan/milky emulsion; check for unexplained coolant loss. A documented water-pump/timing job resets the clock.

Basis: Ford TSBs; NHTSA complaints; well-documented internal-water-pump design

Known patterns for this year and model, not findings about one car. A well-kept example may already have had the fix. Costs are rough US shop prices.

2010 Mazda CX-9 recalls

NHTSA lists 6 recall campaigns for the 2010 Mazda CX-9. Repairs are free at a dealer for the brand, and a dealer can confirm by VIN which were already done.

2010 Mazda CX-9 safety investigations and free repairs

No open safety investigations.

Free repairs to ask about (warranty extensions):

A dealer for the brand can check these by VIN.

Source: NHTSA, Sep 24, 2026.

2010 Mazda CX-9 safety and fuel

17–18 mpgEPA combined, depending on engine and drive
$3,600–$3,800 a yearEPA fuel-cost estimate (15,000 miles a year)

From NHTSA’s crash tests and the EPA’s fueleconomy.gov.

What owners complain about

195 complaints filed with NHTSA for this year and model, which is a lot.

Brakes47%
Engine & cooling14%
Transmission & drivetrain12%
Airbags9%
Suspension8%

Share of complaints that mention each area. One complaint can mention several.

Other Mazda CX-9 years

2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023

Looking at a 2010 Mazda CX-9 for sale?

No VIN? Paste the ad for a fair-price check.

The full report adds this car’s market value and what to offer.