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CARFACTBOOK / DIAGNOSTIC REFERENCE

Start with the symptom. Follow the evidence.

Choose a symptom and your exact chassis when possible. Each next check follows the result you record—not a guessed failed part. CarFactBook keeps a traceable path and prepares a practical mechanic handoff.

Symptom first

What are you seeing?

Won't start / hard starting

Check reviewed reports for Mazda Axela BM5AS.

Warning light or message

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Overheating / running hot

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A/C not cold

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Suspension / steering

Vibration / shaking

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Brake problem

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Hybrid / EV system

Hybrid-system problem

Check reviewed reports for Mazda Axela BM5AS.

Fuel / emissions

Poor fuel economy

Check reviewed reports for Mazda Axela BM5AS.

Choose an exact vehicle

Make, model and chassis code

Selected: Mazda Axela BM5AS · 2018–2019

Diagnostics v3 · Structured symptom flow

Poor fuel economy — structured test-result path

0 results recorded

Next reachable check

Is the fuel-economy change based on repeated tank/trip measurements?

A repeatable measurement is more useful than a single dashboard reading.

Mechanic handoff summary

Further evidence required. 0 reachable results recorded.

Results stay on this page until you leave or change vehicle/symptom. Optional saving stores only this v3 session on this browser, separate from Garage and Vehicle Passport. It is not uploaded or shared. References are refreshed from CarFactBook when you return.

Preparing Diagnostics v3 handoff…

After a mechanic checks or repairs the car

Close the loop with the actual diagnosis, repair, part, cost and follow-up. The exact vehicle, symptom area and the test-result path above are prefilled, but you can edit them before submitting.

Choose an exact vehicle above to prepare a repair-outcome report.Reports remain pending until CarFactBook reviews them. A diagnostic path or external test result never becomes a confirmed diagnosis automatically.

Mazda Axela BM5AS

Useful references for your exact car

These references relate to the selected symptom. They do not identify a faulty component or recommend replacing it. Confirm equipment, production period and source caveats for your individual car.

Verified facts

Engine oil capacity — with filter →

4.2 L

Split from the same manufacturer-backed engine-oil capacity specification for this chassis.

Mazda Motor Corporation · Verified 2026-10-05

Engine oil refill capacity →

3.9 L oil only / 4.2 L with filter

Refill reference; verify final level with the dipstick and follow the exact engine/production-period procedure.

Mazda Motor Corporation · Verified 2026-10-05

Engine oil specification →

0W-20 preferred; 5W-30 / 5W-20 also specified

Use the exact oil standard specified for the engine; unsuitable diesel oil can accelerate DPF deterioration.

Mazda Motor Corporation · Verified 2026-10-05

Fuel type →

Regular gasoline

Use the fuel grade specified for the exact engine and market.

Mazda Motor Corporation · Verified 2026-10-06

Fuel type and tank capacity →

Regular gasoline · 48 L

Mazda Japan technical-specification reference; transmission/grade ranges are retained where a model code spans multiple configurations.

Mazda Motor Corporation · Verified 2026-10-05

JC08 fuel economy →

JC08 17.8 km/L

Mazda Japan technical-specification reference; transmission/grade ranges are retained where a model code spans multiple configurations.

Mazda Motor Corporation · Verified 2026-10-05

Tire pressure →

205/60R16: 250/250 kPa F/R; 215/45R18: 240/220 kPa F/R

Confirm the fitted tire size and the driver-door pressure placard before inflation.

Mazda Motor Corporation · Verified 2026-10-05

Maintenance

Documented service references; your service history determines what is due.

Engine oil

15,000 km / 12 months

Replace engine oil every 15,000 km or 12 months under normal use.

Severe conditions: 7,500 km or 6 months.

Mazda Axela BN engine oil and transmission service data ↗ · Verified 2026-10-05

Engine oil filter

15,000 km / 12 months

Replace the oil filter every 15,000 km or 12 months under normal use.

Severe conditions: 7,500 km or 6 months.

Mazda Axela BN engine oil and transmission service data ↗ · Verified 2026-10-05

Full exact-car maintenance schedule →

Parts / fitment

Reference specifications, not a shopping list or proof that these parts need replacement. Fitment conditions still apply.

Engine oil specification

0W-20 preferred; 5W-30 / 5W-20 also specified

Use the exact oil standard specified for the engine; unsuitable diesel oil can accelerate DPF deterioration.

Mazda Motor Corporation source ↗ · Verified 2026-10-05

Tire pressure

205/60R16: 250/250 kPa F/R; 215/45R18: 240/220 kPa F/R

Confirm the fitted tire size and the driver-door pressure placard before inflation.

Mazda Motor Corporation source ↗ · Verified 2026-10-05

Full exact-car parts references →

Reviewed repair evidence

Poor fuel economy

0 related reports

Reports are matched by related system category for Mazda Axela BM5AS. Compare the recorded symptom and outcome; a repair on another car does not diagnose yours.

No reviewed match yet. CarFactBook will not manufacture a likely cause just to fill this screen. Check the exact vehicle facts or contribute a real repair outcome through Problems.

Browse or contribute reviewed problem & repair evidence →