TroubleAtlas Score
MAZDA CX-30 (2020–2025) — Verified Specs, Fluids & OBD2
Built 2020–2025 · all production years covered on this single page
2.5L I4 Skyactiv-G • Gasoline
© Wikimedia Commons CC BY-SA
TroubleAtlas Score
An independent value score for the Mazda Cx-30 (2020–2025) — reliability, safety, cost, parts, upkeep and documentation. Owing nothing to the manufacturer.
Scorecard · each voice 0–10
Reliabilityn/a
Safety & recallsn/a
Repair cost6.9
Parts & repairability4.4
Maintenance & durabilityn/a
Documentation & support7.1
Independent · Verified · Never for sale
Every figure on this Mazda Cx-30 (2020–2025) 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-30 (2020–2025) is powered by a 2.5L I4 Skyactiv-G 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
0.9h
€63 – €81
Rear brake pads
Difficulty: Easy
1.0h
€70 – €90
Engine oil change
Difficulty: Easy
0.5h
€35 – €45
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
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| ABS Module | 2.0h | € 90–€ 150 |
| ABS Pump | 2.0h | € 90–€ 150 |
| ABS Tone Ring | 1.5h | € 67–€ 112 |
| ABS Wheel Speed Sensor - Front | 1.5h | € 67–€ 112 |
| ABS Wheel Speed Sensor - Rear | 1.5h | € 67–€ 112 |
| Brake Bleed - All Four | 1.5h | € 67–€ 112 |
| Brake Booster | 3.0h | € 135–€ 225 |
| Brake Booster Check Valve | 1.0h | € 45–€ 75 |
Cooling8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| Coolant Bypass Pipe | 1.5h | € 67–€ 112 |
| Coolant Flush | 0.8h | € 36–€ 60 |
| Coolant Reservoir | 1.5h | € 67–€ 112 |
| Coolant Temperature Sensor | 0.5h | € 22–€ 37 |
| Cooling Fan Assembly | 1.5h | € 67–€ 112 |
| Cooling Fan Clutch | 1.5h | € 67–€ 112 |
| Cooling Fan Motor | 1.5h | € 67–€ 112 |
| Cooling Fan Relay | 1.0h | € 45–€ 75 |
Electrical8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| Airbag - Driver | 1.5h | € 67–€ 112 |
| Airbag - Passenger | 1.5h | € 67–€ 112 |
| Airbag - Side | 1.5h | € 67–€ 112 |
| Airbag Module/Computer | 1.5h | € 67–€ 112 |
| Alternator | 1.5h | € 67–€ 112 |
| Alternator Belt | 1.5h | € 67–€ 112 |
| Amplifier | 1.5h | € 67–€ 112 |
| Antenna | 0.5h | € 22–€ 37 |
Engine8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| Boost Pressure Sensor | 3.5h | € 157–€ 262 |
| Camshaft Position Sensor | 1.5h | € 67–€ 112 |
| Camshaft R&R | 4.5h | € 202–€ 337 |
| Connecting Rod Bearings | 1.5h | € 67–€ 112 |
| Crankshaft Position Sensor | 1.5h | € 67–€ 112 |
| Crankshaft R&R | 1.5h | € 67–€ 112 |
| Cylinder Head R&R | 4.5h | € 202–€ 337 |
| Cylinder Head Resurface | 4.5h | € 202–€ 337 |
Exhaust8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| Air Injection Check Valve | 1.5h | € 67–€ 112 |
| Catalytic Converter - California | 2.0h | € 90–€ 150 |
| Catalytic Converter - Direct Fit | 2.0h | € 90–€ 150 |
| Catalytic Converter - Universal | 2.0h | € 90–€ 150 |
| Downpipe | 2.0h | € 90–€ 150 |
| EGR Cooler | 1.5h | € 67–€ 112 |
| EGR Tube | 1.5h | € 67–€ 112 |
| EGR Valve | 1.5h | € 67–€ 112 |
Fuel system8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| Charcoal Canister | 1.5h | € 67–€ 112 |
| EVAP Purge Valve | 1.5h | € 67–€ 112 |
| EVAP Vent Valve | 1.5h | € 67–€ 112 |
| Fuel Cap | 0.3h | € 13–€ 22 |
| Fuel Filler Neck | 3.0h | € 135–€ 225 |
| Fuel Filter | 0.5h | € 22–€ 37 |
| Fuel Filter - In-Tank | 1.0h | € 45–€ 75 |
| Fuel Injector - Single | 3.0h | € 135–€ 225 |
HVAC8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| AC Accumulator | 2.0h | € 90–€ 150 |
| AC Clutch Coil | 1.5h | € 67–€ 112 |
| AC Compressor | 2.0h | € 90–€ 150 |
| AC Compressor Clutch | 2.0h | € 90–€ 150 |
| AC Compressor Oil Add | 2.0h | € 90–€ 150 |
| AC Condenser | 2.0h | € 90–€ 150 |
| AC Evaporator | 2.0h | € 90–€ 150 |
| AC Expansion Valve (TXV) | 2.0h | € 90–€ 150 |
Steering8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| Center Link/Drag Link | 1.5h | € 67–€ 112 |
| Electric Power Steering Module | 1.5h | € 67–€ 112 |
| Electric Power Steering Motor | 1.5h | € 67–€ 112 |
| Idler Arm | 1.0h | € 45–€ 75 |
| Pitman Arm | 1.5h | € 67–€ 112 |
| Power Steering Fluid Flush | 2.0h | € 90–€ 150 |
| Power Steering Gear Box | 2.0h | € 90–€ 150 |
| Power Steering Hose - High Pressure | 1.5h | € 67–€ 112 |
Suspension8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| Air Line | 1.5h | € 67–€ 112 |
| Air Spring/Air Bag | 1.5h | € 67–€ 112 |
| Air Suspension Compressor | 1.5h | € 67–€ 112 |
| Air Suspension Height Sensor | 1.5h | € 67–€ 112 |
| Air Suspension Valve Block | 1.5h | € 67–€ 112 |
| Ball Joint - Lower | 1.5h | € 67–€ 112 |
| Ball Joint - Upper | 2.0h | € 90–€ 150 |
| Ball Joints - Upper and Lower | 2.0h | € 90–€ 150 |
Transmission8 operations
| Operation | Labour hours (OLP) | Est. labour cost |
|---|---|---|
| Kickdown Cable | 1.5h | € 67–€ 112 |
| Neutral Safety Switch | 1.5h | € 67–€ 112 |
| Overdrive Solenoid | 1.5h | € 67–€ 112 |
| Shift Cable | 1.5h | € 67–€ 112 |
| Shift Linkage | 1.5h | € 67–€ 112 |
| Shift Solenoid - Single | 1.5h | € 67–€ 112 |
| Shift Solenoids - All | 1.5h | € 67–€ 112 |
| Torque Converter | 4.5h | € 202–€ 337 |
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
📋 RECALLS & TSB (7)
NHTSA 25V357000
Air Bags › Air Bag/Restraint Control Module › Software
Date: 29/05/2025
Mazda North American Operations is recalling certain 2024-2025 Mazda3 and CX30 vehicles. The Sophisticated Air Bag Sensor (SAS) units may set an error code and deactivate the air bags, due to a low battery condition.
NHTSA 21V101000
Tires › Valve
Date: 22/02/2021
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
NHTSA 23V275000
Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module
Date: 18/04/2023
Mazda North American Operations (Mazda) is recalling certain 2022-2023 CX-30 and 2023 CX-50 vehicles. The anti-lock brake system (ABS) Hydraulic Control Unit (HCU) may be damaged, which can result in reduced braking ability.
NHTSA 21V086000
Structure › Body › Hatchback/Liftgate
Date: 18/02/2021
Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-30 vehicles. When fully opened, the power liftgate may partially lower unexpectedly when the vehicle is parked facing uphill on a slope.
NHTSA 20V346000
Service Brakes, Hydraulic › Foundation Components › Disc › Caliper
Date: 12/06/2020
Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 and Mazda3 vehicles. The front brake caliper mounting bolts may not have been tightened properly during assembly, possibly allowing the calipers to loosen.
NHTSA 20V347000
Fuel System, Gasoline › Delivery › Hoses, Lines/Piping, And Fittings
Date: 12/06/2020
Mazda North American Operations (Mazda) is recalling certain 2020 CX-30 vehicles equipped with all-wheel drive. The evaporative vent hose for the fuel tank may be disconnected, possibly allowing fuel to leak from the charcoal canister vent at the rear of the vehicle.
NHTSA 24V649000
Lane Departure › Sensing System › Camera
Date: 03/09/2024
Mazda North American Operations (Mazda) is recalling certain 2024 Mazda 3, CX-30, and 2025 CX-50 vehicles. A malfunction in the forward sensing camera (FSC) may prevent the automatic emergency braking system and the lane-keep assist system from functioning. In addition, the hea…
COMMON OBD2 CODES TO CHECK
P0420
Catalyst System Efficiency Below Threshold Bank 1
Powertrain
P0171
System Too Lean Bank 1
Powertrain
P0300
Random/Multiple Cylinder Misfire Detected
Powertrain
P0441
EVAP Incorrect Purge Flow
Powertrain
P0128
Coolant Thermostat Below Regulating Temperature
Powertrain
P0455
EVAP System Leak Detected (Gross Leak)
Powertrain
P0700
Transmission Control System (MIL Request)
Powertrain
P0507
Idle Air Control System RPM Higher Than Expected
Powertrain
P0174
System Too Lean Bank 2
Powertrain
All documented fault codes for this vehicle
The most documented diagnostic codes for this model, by system and severity. Tap a code for the full guide.
P1504
powertrain
MODERATEP1309
powertrain
HIGHP1132
powertrain
MODERATEP1744
powertrain
MODERATEP1260
powertrain
CRITICALP1000
powertrain
LOWP1512
powertrain
LOWP1131
powertrain
MODERATEP1780
powertrain
LOWP1631
powertrain
HIGHP1450
powertrain
MODERATEP1506
powertrain
MODERATEP1443
powertrain
LOWP1507
powertrain
MODERATEP1101
powertrain
MODERATEP1401
powertrain
MODERATEP1605
powertrain
MODERATEP1345
powertrain
CRITICALP1633
powertrain
LOWP1600
powertrain
LOW
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 System WarningBrakes
Immobilizer / Key FaultSecurity
🟠 WARNING — check soon
Malfunction Indicator Light (MIL) / Check EngineEngine
Diesel Particulate Filter (DPF)Emissions
Battery / Charging SystemElectrical
Low Fuel WarningFuel
ABS WarningBrakes
Brake Pad Wear IndicatorBrakes
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
Suspension Fault / Air SuspensionSuspension
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
Bulb Failure WarningLighting
Headlight Range / Leveling FaultLighting
Service / Maintenance DueMaintenance
A/C System FaultHvac
Clutch Wear WarningTransmission
Cruise Control / ACC FaultADAS
🔵 INFORMATION
Engine Temperature Low (Blue)Cooling
Glow Plug / Diesel PreheatEngine
Traction Control / ESC OffChassis
Seatbelt ReminderActive safety
Rear Fog Light IndicatorLighting
Lane Departure / LDWS WarningADAS
Forward Collision Warning (FCW/AEB)ADAS
Blind Spot Monitor FaultADAS
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)
226 owner complaints filed with the U.S. National Highway Traffic Safety Administration (NHTSA) for the Mazda Cx-30 across model years 2020–2025. These are real, verified reports submitted by vehicle owners.
23 crash reports 1 fire 21 injuries
Complaints by model year (most reported first)
Model year 202195
Model year 202031
Model year 202231
Model year 202425
Model year 202523
Model year 202321
Most reported components (all years)
Engine64
Unknown Or Other40
Electrical System36
Forward Collision Avoidance30
Service Brakes25
Visibility/Wiper15
Sample reports
Driver door cannot be opened from inside with either engine ON or OFF. After I came home from work , I parked the car inside the garage and I could not get out of the car.It took me approximately 2-4 minutes.After that the car just opene… (MY 2020)
Low engine oil light displayed at 7,030 miles. No leaks detected. Engine consuming oil burning in combustion chamber. Possible engine damage or failure if oil was not quickly refilled. (MY 2021)
The contact owned a 2021 Mazda CX30. The contact stated while making a left turn, another vehicle struck the middle of her vehicle causing server damage. The contact stated that none of the frontal air bags were deployed. The contact suf… (MY 2021)
One day after oil and filter change, engine LOW OIL LEVEL light illuminated on dash. Engine oil dipstick displays full oil level; no signs on oil leaks under the vehicle. Appears to be failed oil level sensor. Upon restarting the vehicle… (MY 2023)
Source: NHTSA complaints database (U.S. data.gov). Figures cover production years 2020–2025.
Frequently Asked Questions
Does the Mazda Cx-30 have any safety recalls?
Yes — 7 official NHTSA recall campaign(s) affect this model, mainly: STRUCTURE:BODY:HATCHBACK/LIFTGATE, SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER. Check the recalls section for your exact year/VIN.
What does fault code P0003 mean on the Mazda Cx-30?
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-30?
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-30?
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 brakes problems common on the Mazda Cx-30?
Yes — 38 of 220 real owner reports filed with NHTSA mention the brakes. One owner reported: “The front camera didn't operate properly The brakes have an elongated stopping distance…” See the owner-reported complaints section below for more.
Are engine problems common on the Mazda Cx-30?
Yes — 57 of 220 real owner reports filed with NHTSA mention the engine. One owner reported: “The initial sensor alarm indication was low oil pressure and within less then an hour engine malfunction was detected and the vehicle stopped functioning. This incident occurred on [XXX] in SanAntonio…” See the owner-reported complaints section below for more.
Are electrical problems common on the Mazda Cx-30?
Yes — 86 of 220 real owner reports filed with NHTSA mention the electrical. One owner reported: “My 2020 Mazda CX-30 has an intermittent no-start condition caused by a complete electrical failure. This occurs randomly, often overnight and after long or short trips. When it happens: The car does …” See the owner-reported complaints section below for more.
What tyres does the Mazda Cx-30 (2020–2025) use?
The original OEM tyre size for the Mazda Cx-30 (2020–2025) is 215/55 R16. Compatible alternative sizes: ["235/50R18", "215/55R18", "235/55R17", "215/60R17", "245/45R19"]. 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-30 (2020–2025)?
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-30 (2020–2025) be serviced?
Routine maintenance for the Mazda Cx-30 (2020–2025) 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.
Considering buying a Mazda Cx-30 (2020–2025)? Use this guide to check expected maintenance costs, the most reported fault codes and parts availability on the market. Real data, zero commercial estimates.