2019 Mazda CX-9 — Full Specifications
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Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2019 Mazda CX-9 is an SUV powered by a 2.5L 4-cyl turbo regular gasoline engine. Its most fuel-efficient configuration returns around 29 mpg (UK) / 24 mpg (US EPA) combined, with 28–29 mpg (UK) across all configurations. Owners often keep a Mazda CX-9 workshop manual to hand for servicing and repairs.
Compared with the 2018 Mazda CX-9: Fuel economy is essentially unchanged at around 29 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine | 2.5L 4-cyl turbo |
|---|---|
| Transmission | Automatic (S6) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | SUV |
| Height | 1747 mm |
| Fuel Economy (UK) | 29 combined / 26 urban / 34 extra-urban mpg |
| Fuel Economy (US EPA) | 24 combined / 22 city / 28 highway mpg |
| CO₂ Emissions | 225 g/km |
| EPA Greenhouse Gas Score | 5 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,800 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2019 Mazda CX-9, all with the 2.5L 4-cyl turbo engine. Combined fuel economy ranges from 23 to 24 mpg (US), or 28 to 29 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 2.5L 4-cyl turbo | Automatic (S6) | 4-Wheel Drive | 28 | 23 (20/26) | 243 | $2,900 |
| 2.5L 4-cyl turbo | Automatic (S6) | Front-Wheel Drive | 29 | 24 (22/28) | 225 | $2,800 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
Owner Essentials for the 2019 Mazda CX-9
Running Costs: 2019 Mazda CX-9
Covering around 8,000 miles a year in a 2019 Mazda CX-9 at 29 mpg combined, expect roughly 1,254 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,800 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Planning a road trip? Grab a road trip packing list. Only need this car occasionally? See our buy vs rent comparison.
2019 Mazda CX-9 Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2019 Mazda CX-9 (as of 6 October 2026). Most affected areas: Fuel system (1), Tires (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Fuel system — campaign 21V875000, reported 12 November 2021. Risk: Fuel pump failure may cause an engine stall, increasing the risk of a crash.
- Tires — campaign 19V770000, reported 28 October 2019. Risk: A detached tire tread can decrease vehicle stability and increase the risk of a crash.
Owners have filed 53 complaints with NHTSA about the 2019 Mazda CX-9. The most-reported areas are Engine (23), Unspecified (14), Electrical system (7). Complaints include 1 reported crash. That is close to the median of 58 complaints across the 14 Mazda CX-9 model years in our data.
Used-buyer checklist for the 2019 Mazda CX-9
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Engine (23 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
- Fuel system (1 recall campaign) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Tyres (1 recall campaign) — Check tyre age and wear and ask about any tyre recalls.
- Electrical system (7 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
How does the Mazda CX-9 compare to similar SUVs? For context, SUVs in our database average around 27 mpg (UK) combined — this model's 29 mpg figure is 2 mpg better than that average. Its 225 g/km CO₂ figure is 28 g/km lower than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
Mazda models in our database average about 34 mpg (UK) combined on their most efficient configuration; the 2019 Mazda CX-9's 29 mpg is 5 mpg below that make average. Its 225 g/km CO₂ figure is 27 g/km higher than the 198 g/km Mazda average.
Of the 14 Mazda CX-9 model years we cover, the 2019 is the most economical on its best configuration (29 mpg UK combined). See every Mazda CX-9 year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2019 Mazda CX-9
Frequently Asked Questions
What engine does the 2019 Mazda CX-9 have?
It's fitted with a 2.5L 4-cyl turbo regular gasoline engine, paired with a automatic (s6) transmission.
What is the fuel economy of the 2019 Mazda CX-9?
The most efficient configuration returns around 29 mpg (UK) combined, or 24 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 28 to 29 mpg.
How much does the 2019 Mazda CX-9 cost to fuel per year?
The US EPA estimates about $2,800 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2019 Mazda CX-9 have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 4 stars for frontal crash protection.
Does the 2019 Mazda CX-9 have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2019 Mazda CX-9 (as of 6 October 2026). Most affected areas: Fuel system (1), Tires (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2019 Mazda CX-9?
Among the 53 owner complaints filed with NHTSA, the most-reported areas are Engine (23 complaints), Unspecified (14 complaints), Electrical system (7 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Mazda CX-9's fuel economy good for an SUV?
Yes — it returns around 29 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track.