Mazda Cx-9 (2007–2024) — OBD2 Codes, Parts & Maintenance | TroubleAtlas

🌐 ▾
Home› Vehicles› Mazda› Cx-9› 2024
Mazda Cx-9 (2007–2024)
TROUBLEATLAS · SCOREINDEPENDENT · VERIFIED★★TA5.9/10
TroubleAtlas Score
The TroubleAtlas app on a phoneTROUBLEATLAS APP · FREEFREE APPDownload our free appDownload our free appOur shopping centre in your pocket: dozens of suppliers that deliver in your country, compared, department by department.Dozens of suppliers compared, in your country. Get it free Get it free

MAZDA CX-9 (2007–2024) — Technical Guide, Fault Codes & Maintenance

By TroubleAtlas Technical Team · Updated 3 July 2026 · Cross-checked against 3 independent sources
Built 2007–2024 · all production years covered on this single page

2.5L Turbo I4 • Gasoline

Mazda Cx-9 (2007–2024)

© Wikimedia Commons CC BY-SA

5 Common problems View details →
29 OBD2 codes View details →
14 Recalls / TSB View details →
TroubleAtlas Score
An independent value score for the Mazda Cx-9 (2007–2024) — reliability, safety, cost, parts, upkeep and documentation. Owing nothing to the manufacturer.
Scorecard · each voice 0–10
Reliability
n/a
Safety & recalls
n/a
Repair cost
5.4
Parts & repairability
4.0
Maintenance & durability
n/a
Documentation & support
8.4
★ How we calculate this → Methodology
TROUBLEATLAS · SCOREINDEPENDENT · VERIFIED★★TA5.9/10
Independent · Verified · Never for sale

Every figure on this Mazda Cx-9 (2007–2024) page is aggregated and cross-checked against more than 6.6 million real workshop operations, NHTSA records and OEM technical sources — and updated continuously. No invented estimates.

The Mazda Cx-9 (2007–2024) is powered by a 2.5L Turbo I4 engine. Its OEM tyre size is 215/55 R16. Use the sections below for verified fluids, battery, OEM tyres, the maintenance schedule, recommended parts and the most commonly reported OBD2 fault codes for this vehicle.

⚠️Common problems 🔧Common repairs 💧Fluids & lubricants 🔋Battery 🔌Fault codes (OBD2) 🔴Dashboard lights 🛒Parts comparator 🔧Accessories & tools 🛞Tyres 📋Recalls & TSB 📢Complaints 📍Workshops nearby
⚠️ COMMON PROBLEMS
Engine overheatingFREQUENT

Engine temperature over limits — check coolant level, thermostat and radiator.

Related codes: P0217

Oil pressure sensor: low signalFREQUENT

ECU detects insufficient oil pressure — check oil level and sensor.

Related codes: P0522

Insufficient oil pressureFREQUENT

Oil pressure below critical threshold — stop the engine and check immediately.

Related codes: P0524

Engine control module (PCM) faultFREQUENT

Faulty ECU processor — requires specialist workshop diagnosis.

Related codes: P0606

Throttle actuatorFREQUENT

Throttle actuator motor circuit open — loss of throttle response.

Related codes: P2100

🔧 COMMON REPAIRS
🔧
Front brake pads
Difficulty: Easy
0.8h
€56 – €72
🔧
Rear brake pads
Difficulty: Easy
0.9h
€63 – €81
🛢
Engine oil change
Difficulty: Easy
0.3h
€21 – €27
🔧
ABS Module
Difficulty: Medium
2.0h
€140 – €180
💰 AVERAGE INDICATIVE COSTS

Prices may vary by area and workshop.

🔧
Full service
€ 120 – € 200
🛑
Full brake service
€ 180 – € 300
⚡
Spark plug replacement
€ 80 – € 140
📊
Electronic diagnosis
€ 40 – € 70
⏱️ OFFICIAL LABOUR TIMES (OLP)

Standard labour hours from a database of 6.6M+ real shop operations, with an indicative labour-cost estimate for your country.

Brakes8 operations
OperationLabour hours (OLP)Est. labour cost
ABS Module2.0h€ 90–€ 150
ABS Pump2.5h€ 112–€ 187
ABS Tone Ring1.5h€ 67–€ 112
ABS Wheel Speed Sensor - Front0.8h€ 36–€ 60
ABS Wheel Speed Sensor - Rear0.8h€ 36–€ 60
Brake Bleed - All Four1.0h€ 45–€ 75
Brake Booster2.5h€ 112–€ 187
Brake Booster Check Valve0.3h€ 13–€ 22
Cooling8 operations
OperationLabour hours (OLP)Est. labour cost
Coolant Bypass Pipe1.5h€ 67–€ 112
Coolant Flush1.0h€ 45–€ 75
Coolant Reservoir0.5h€ 22–€ 37
Coolant Temperature Sensor0.5h€ 22–€ 37
Cooling Fan Assembly1.0h€ 45–€ 75
Cooling Fan Clutch1.0h€ 45–€ 75
Cooling Fan Motor1.5h€ 67–€ 112
Cooling Fan Relay0.3h€ 13–€ 22
Electrical8 operations
OperationLabour hours (OLP)Est. labour cost
Airbag - Driver1.0h€ 45–€ 75
Airbag - Passenger1.5h€ 67–€ 112
Airbag - Side2.0h€ 90–€ 150
Airbag Module/Computer1.0h€ 45–€ 75
Alternator1.5h€ 67–€ 112
Alternator Belt0.5h€ 22–€ 37
Amplifier1.5h€ 67–€ 112
Antenna0.5h€ 22–€ 37
Engine8 operations
OperationLabour hours (OLP)Est. labour cost
Boost Pressure Sensor0.5h€ 22–€ 37
Camshaft Position Sensor1.0h€ 45–€ 75
Camshaft R&R8.0h€ 360–€ 600
Connecting Rod Bearings15.0h€ 675–€ 1125
Crankshaft Position Sensor1.0h€ 45–€ 75
Crankshaft R&R20.0h€ 900–€ 1500
Cylinder Head R&R6.0h€ 270–€ 450
Cylinder Head Resurface8.0h€ 360–€ 600
Exhaust8 operations
OperationLabour hours (OLP)Est. labour cost
Air Injection Check Valve0.8h€ 36–€ 60
Catalytic Converter - California1.5h€ 67–€ 112
Catalytic Converter - Direct Fit1.5h€ 67–€ 112
Catalytic Converter - Universal2.0h€ 90–€ 150
Downpipe2.0h€ 90–€ 150
EGR Cooler3.0h€ 135–€ 225
EGR Tube1.5h€ 67–€ 112
EGR Valve1.0h€ 45–€ 75
Fuel system8 operations
OperationLabour hours (OLP)Est. labour cost
Charcoal Canister1.0h€ 45–€ 75
EVAP Purge Valve0.8h€ 36–€ 60
EVAP Vent Valve0.8h€ 36–€ 60
Fuel Cap0.1h€ 4–€ 7
Fuel Filler Neck1.5h€ 67–€ 112
Fuel Filter0.5h€ 22–€ 37
Fuel Filter - In-Tank2.0h€ 90–€ 150
Fuel Injector - Single1.0h€ 45–€ 75
HVAC8 operations
OperationLabour hours (OLP)Est. labour cost
AC Accumulator1.5h€ 67–€ 112
AC Clutch Coil1.5h€ 67–€ 112
AC Compressor2.5h€ 112–€ 187
AC Compressor Clutch2.0h€ 90–€ 150
AC Compressor Oil Add0.5h€ 22–€ 37
AC Condenser2.5h€ 112–€ 187
AC Evaporator6.0h€ 270–€ 450
AC Expansion Valve (TXV)4.0h€ 180–€ 300
Steering8 operations
OperationLabour hours (OLP)Est. labour cost
Center Link/Drag Link1.5h€ 67–€ 112
Electric Power Steering Module1.5h€ 67–€ 112
Electric Power Steering Motor2.5h€ 112–€ 187
Idler Arm1.0h€ 45–€ 75
Pitman Arm1.2h€ 54–€ 90
Power Steering Fluid Flush0.5h€ 22–€ 37
Power Steering Gear Box3.5h€ 157–€ 262
Power Steering Hose - High Pressure1.0h€ 45–€ 75
Suspension8 operations
OperationLabour hours (OLP)Est. labour cost
Air Line1.0h€ 45–€ 75
Air Spring/Air Bag1.5h€ 67–€ 112
Air Suspension Compressor1.5h€ 67–€ 112
Air Suspension Height Sensor1.0h€ 45–€ 75
Air Suspension Valve Block2.0h€ 90–€ 150
Ball Joint - Lower1.8h€ 81–€ 135
Ball Joint - Upper1.5h€ 67–€ 112
Ball Joints - Upper and Lower3.0h€ 135–€ 225
Transmission8 operations
OperationLabour hours (OLP)Est. labour cost
Kickdown Cable0.8h€ 36–€ 60
Neutral Safety Switch1.0h€ 45–€ 75
Overdrive Solenoid2.0h€ 90–€ 150
Shift Cable1.5h€ 67–€ 112
Shift Linkage1.0h€ 45–€ 75
Shift Solenoid - Single4.1h€ 184–€ 307
Shift Solenoids - All9.0h€ 405–€ 675
Torque Converter6.9h€ 310–€ 517
💵 WORKSHOP LABOUR RATES BY COUNTRY

Average independent-workshop hourly labour rates, to estimate repair costs in your country.

🇩🇪Germany€95/h
🇪🇸Spain€55/h
🇫🇷France€75/h
🇮🇹Italy€45/h
🇬🇧UK£80/h
🇺🇸USA$120/h
Reference rate
€45/h
Source: Eurostat 2024
💧 FLUIDS & LUBRICANTS
Brake Fluid
Brake Fluid
DOT 3 Brake Fluid
Replace when moisture content exceeds 3% or every 2-3 years
📋 RECALLS & TSB (14)
NHTSA 19V782000
Air Bags › Frontal › Passenger Side › Inflator Module
Date: 31/10/2019
Mazda North American Operations (Mazda) is recalling certain 2007-2012 CX-7, CX-9, and 2009-2012 Maza6 vehicles. These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode d…
NHTSA 19V403000
Electrical System › Wiring
Date: 30/05/2019
Mazda North American Operations (Mazda) is recalling certain 2018 CX-9 vehicles. The wiring harness may disrupt electrical communications and disable the passenger frontal air bag, turn signals, and/or engine starting system.
NHTSA 17V429000
Air Bags › Frontal › Passenger Side › Inflator Module
Date: 29/06/2017
Mazda North America Operations (Mazda) is recalling certain 2009-2011 Mazda6, and 2007-2011 CX-7 and CX-9 vehicles. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacemen…
NHTSA 19V770000
Tires › Tread/Belt
Date: 28/10/2019
Mazda North American Operations (Mazda) is recalling certain 2019 CX-9 vehicles equipped with Sumitomo Falken ZIEX CT50 A/S tires, size P255/50R20 104V, having date code 1619. An incorrect rubber compound may have been used in the tire's manufacturing, allowing the tread to sepa…
NHTSA 21V750000
Seats › Mid/Rear Assembly
Date: 27/09/2021
Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-9 vehicles equipped with 60/40 split bench second-row seats. The left-side second-row seat may unexpectedly slide forward during a crash. As such, these vehicles fail to comply with the requirements of Fe…
NHTSA 09V066000
Electrical System › Wiring › Interior/Under Dash
Date: 23/02/2009
MAZDA IS RECALLING 30,600 MY 2007-2009 CX9 VEHICLES EQUIPPED WITH POWER ADJUSTABLE SEAT WITH POSITION MEMORY FUNCTION. THE SEAT HARNESS ROUTED UNDERNEATH THE SEAT CUSHION MAY INTERFERE WITH THE FRONT COVER BRACKET WHICH IS ATTACHED ON THE FRONT SIDE OF THE SEAT CUSHION. DUE TO …
NHTSA 15V451000
Suspension › Front › Control Arm › Lower Ball Joint
Date: 20/07/2015
Mazda North American Operations (Mazda) is recalling certain model year 2007-2014 CX-9 vehicles manufactured October 24, 2006, to December 28, 2013. The affected vehicles have front suspension ball joints that may corrode from water leaking into the fitting.
NHTSA 10V051000
Seats › Front Assembly › Seat Heater/Cooler
Date: 19/02/2010
MAZDA IS RECALLING CERTAIN MODEL YEAR 2010 CX-9 VEHICLES EQUIPPED WITH ELECTRICALLY HEATED FRONT SEATS. THERE IS A POSSIBILITY UNDER EXTREMELY COLD CONDITIONS FOR THE SEAT HEATER CONTROL CIRCUIT TO OVERHEAT AND FAIL DUE TO INSUFFICIENT ELECTRICAL GROUNDING.
NHTSA 17V457000
Air Bags › Frontal › Passenger Side › Inflator Module
Date: 18/07/2017
Mazda North America Operations (Mazda) is recalling certain 2012 CX-7, CX-9 and Mazda6 vehicles sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern…
NHTSA 21V875000
Fuel System, Gasoline › Delivery › Fuel Pump
Date: 12/11/2021
Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.
NHTSA 18V717000
Air Bags › Frontal › Passenger Side › Inflator Module
Date: 12/10/2018
Mazda North American Operations (Mazda) is recalling certain 2014-2015 Mazda CX-9 vehicles sold, or ever registered in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Maria…
NHTSA 16V203000
Steering
Date: 11/04/2016
Mazda North American Operations (Mazda) is recalling certain model year 2016 CX-3 vehicles manufactured June 1, 2015, to December 2, 2015, 2013-2014 Mazda2 vehicles manufactured July 3, 2013, to August 8, 2014, 2014-2016 CX-5 vehicles manufactured January 19, 2013, to December 2,…
NHTSA 18V018000
Air Bags › Frontal › Passenger Side › Inflator Module
Date: 09/01/2018
Mazda North American Operations (Mazda) is recalling certain 2013 Mazda6 and CX-9 vehicles sold, or ever registered in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Maria…
NHTSA 09E011000
Equipment
Date: 02/04/2009
THULE, INC. IS RECALLING 2,323 OWNER-INSTALLED ROOF-MOUNTED FIT KITS, MODELS 3068 AND 3069, MANUFACTURED BETWEEN JANUARY 1, 2008 AND FEBRUARY 28, 2009 THAT ARE USED WITH THULE PODIUM FOOT PACKS, MODELS 460 AND 460R. THESE FIT KITS WERE SOLD AS AFTERMARKET EQUIPMENT FOR USE ON TH…
🔴 DASHBOARD WARNING LIGHTS — UNIVERSAL GUIDE

56 warning lights classified by urgency. Appears on your vehicle? Check the urgency level.

Show all dashboard warning lights
🔴 IMMEDIATE STOP — pull over
Oil Pressure WarningEngine
Engine Temperature WarningCooling
!BRAKE
Brake System WarningBrakes
K
Immobilizer / Key FaultSecurity
🟠 WARNING — check soon
Malfunction Indicator Light (MIL) / Check EngineEngine
Diesel Particulate Filter (DPF)Emissions
+−
Battery / Charging SystemElectrical
Low Fuel WarningFuel
!BRAKE
ABS WarningBrakes
!BRAKE
Brake Pad Wear IndicatorBrakes
!BRAKE
Electronic Parking Brake (EPB)Brakes
!
Power Steering WarningSteering
ESC / Stability Control FaultChassis
Tire Pressure Warning (TPMS)Chassis
Transmission Temperature WarningTransmission
Transmission / Gearbox FaultTransmission
Airbag / SRS WarningActive safety
EGR / Exhaust Gas Recirculation FaultEmissions
Catalytic Converter / Emissions FaultEmissions
AdBlue / DEF Level LowEmissions
Coolant Level LowCooling
Hybrid / EV System WarningHybrid
EV Charge System FaultHybrid
12V Battery (Hybrid/EV Auxiliary)Hybrid
S
Suspension Fault / Air SuspensionSuspension
N
CAN Bus / Network Communication FaultNetwork
Water in Fuel FilterFuel
Diesel Injector FaultFuel
!
Steering Angle Sensor FaultSteering
Turbo / Boost Pressure FaultEngine
Regenerative Braking Fault (Hybrid/EV)Hybrid
i-ACTIVSENSE Fault (Mazda)ADAS
MRCC Fault (Mazda)ADAS
🟡 MONITOR
Fuel Cap / Evap SystemEmissions
?
4WD / AWD SystemDrivetrain
L
Bulb Failure WarningLighting
L
Headlight Range / Leveling FaultLighting
Service / Maintenance DueMaintenance
AC
A/C System FaultHvac
Clutch Wear WarningTransmission
A
Cruise Control / ACC FaultADAS
🔵 INFORMATION
Engine Temperature Low (Blue)Cooling
Glow Plug / Diesel PreheatEngine
Traction Control / ESC OffChassis
Seatbelt ReminderActive safety
L
Rear Fog Light IndicatorLighting
A
Lane Departure / LDWS WarningADAS
A
Forward Collision Warning (FCW/AEB)ADAS
A
Blind Spot Monitor FaultADAS
A
Rear Parking Sensor / Camera FaultADAS
Windshield Washer Fluid LowMaintenance
!
Door Open WarningBody
!
Hood / Trunk Open WarningBody
Gear Shift Indicator (Manual)Transmission
Sport / Performance Mode ActiveTransmission
i-stop (Mazda)Engine
📢 REPORTED COMPLAINTS & PROBLEMS (NHTSA)

1456 owner complaints filed with the U.S. National Highway Traffic Safety Administration (NHTSA) for the Mazda Cx-9 across model years 2007–2024. These are real, verified reports submitted by vehicle owners.

60 crash reports 13 fires 39 injuries
Complaints by model year (most reported first)
Model year 2012221
Model year 2010194
Model year 2008172
Model year 2011169
Model year 2018122
Model year 201699
Model year 200786
Model year 201368
Most reported components (all years)
Service Brakes428
Engine323
Suspension147
Air Bags145
Power Train144
Unknown Or Other112
Sample reports
When driving with adaptive cruise control engaged I have had multiple incidents where the forward collision warning and automatic emergency braking engages when there is no vehicle in front of me. Similarly, with adaptive cruise contro… (MY 2022)
Dealer diagnosed manufacturing defect that caused crack in head. {Which could lead to engine failure, and subsequent accident due to engine failure during operation.} Engine lost coolant. No overheating noted. No warning/error codes noted. (MY 2016)
MY POWER TRAIN WAS SUPPOSED TO BE COVERED TO 100,000 MILES. WHEN THE TRANFER CASE HAD TO BE REPLACED AS PER WARNING IT HAPPENED AT 93000 ONSTEAD OF 90000 BUT I WAS TOLD THAT NOT ONLY EAS I NOT COVERED BUT THAT THE SUPPOSED WARRANTY COVER… (MY 2011)
Coolant leak cylinder head. It was running and i could smell coolant on the minifalda and it shout down. (MY 2017)

Source: NHTSA complaints database (U.S. data.gov). Figures cover production years 2007–2024.

Frequently Asked Questions

Does the Mazda Cx-9 have any safety recalls?

Yes — 25 official NHTSA recall campaign(s) affect this model, mainly: AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE, SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT, EQUIPMENT. Check the recalls section for your exact year/VIN.

What does fault code P0003 mean on the Mazda Cx-9?

Fuel Volume Regulator Control Circuit Low This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

What does fault code P0002 mean on the Mazda Cx-9?

Fuel Volume Regulator Control Circuit Range/Performance This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

What does fault code P0001 mean on the Mazda Cx-9?

Fuel Volume Regulator Control Circuit/Open This code is among the most documented for this model — tap it in the OBD2 section for the full step-by-step guide.

Are electrical problems common on the Mazda Cx-9?

Yes — 296 of 1415 real owner reports filed with NHTSA mention the electrical. One owner reported: “THERE IS A SYSTEMIC EVAP SYSTEM ISSUE WHERE THERE IS A LEAK THAT EITHER SHOWS THAT THE GAS CAP IS OFF OR THE CHECK ENGINE CODE FOR LARGE EVAP LEAK. MESSAGE BOARD TRAFFIC SHOWS THIS AS A PROBLEM ACROSS…” See the owner-reported complaints section below for more.

Are engine problems common on the Mazda Cx-9?

Yes — 343 of 1415 real owner reports filed with NHTSA mention the engine. One owner reported: “Coolant was leaking into my engine where the oil goes and I was unaware. The vehicle stalled in me while driving because of this. Even after figuring out what the issue was and trying to have it fix i…” See the owner-reported complaints section below for more.

Are brakes problems common on the Mazda Cx-9?

Yes — 478 of 1415 real owner reports filed with NHTSA mention the brakes. One owner reported: “WE WERE COMING HOME FROM OUR SON'S BASEBALL GAME WHEN THIS INCIDENT OCCURRED. THERE WERE 2 ADULTS AND 3 CHILDREN IN THE CAR AT THE TIME OF INCIDENT. WE WERE TRAVELING IN THE MIDDLE LANE OF A 3 LANE …” See the owner-reported complaints section below for more.

What tyres does the Mazda Cx-9 (2007–2024) use?

The original OEM tyre size for the Mazda Cx-9 (2007–2024) is 215/55 R16. Compatible alternative sizes: ["255/55R19", "255/60R18", "245/45R19", "255/45R21", "255/50R20"]. See the Tyres section on this page to compare offers from the main suppliers.

Which OBD2 fault codes are commonly documented for the Mazda Cx-9 (2007–2024)?

Commonly documented OBD2 codes across many vehicles include: P0420, P0300, P0171. Find the full description, likely causes and estimated repair costs in the OBD2 Codes section on this page.

How often should the Mazda Cx-9 (2007–2024) be serviced?

Routine maintenance for the Mazda Cx-9 (2007–2024) typically includes an oil change every 6,000–9,000 miles (10,000–15,000 km), an air filter every 12,000–18,000 miles (20,000–30,000 km) and a brake inspection every 12,000 miles (20,000 km). Check the full plan with specific intervals in the Scheduled Maintenance section on this page.

Found what you were looking for? Explore other Mazda models in our database, compare tyre offers in your size, or search a specific fault code in the TroubleAtlas OBD2 database.

More Mazda modelsCompare tyresSearch OBD2 code
Scroll to Top