How much is a 2018 Mazda DemioPetrol worth in Ireland?

Carintel.ie tracks 9 live 2018 Mazda DemioPetrol listings on the Irish market. Sign up free to see the true market value, price range, and how it compares to NI import prices.

How much does a 2018 Mazda Demio depreciate per year?

Carintel.ie calculates Mazda Demio depreciation from real listing data using regression analysis. Sign up free to see the annual depreciation rate and forecast.

Is it cheaper to import a 2018 Mazda Demio from Northern Ireland?

It depends on spec, mileage and CO2. Carintel.ie compares ROI median prices against Northern Ireland listings' landed cost, including VRT, NOx levy and registration fees, so you can see the saving at a glance on this page.

What are the running costs of a 2018 Mazda DemioPetrol?

This page estimates annual running costs for a 2018 Mazda DemioPetrol using WLTP consumption data, current Irish fuel and electricity prices, and Irish motor tax bands.

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Data and calculations are in active development and changing regularly. Please do not make buying decisions based solely on this site, always verify with other sources.

Analysing market data

Fetching listings · computing fair value · building charts

Filter by trim, gearbox1 active

Gearbox:All Manual · 2 Automatic · 1

Market Intelligence

Mazda Demio2018

Petrol

€10,850ROI listing median

27 days avg on market · Low data confidence

High DemandLimited Data

Listing price range

€13k – €13k

middle 50% of listings

Listings

ROI active now

Updated 13h ago · ROI · Low confidence

Expected price

€12,950

retail ~€12,950 · private ~€9,832 Pricing assumptionsAssumptions· Good condition, full service history· No outstanding finance or damage· Based on ads seen in the past 30 days

Est. trade-in

€6,882 – €8,357

Avg mileage

65k km

typical 55k km

Days listed

27d

avg on market · demand 68/100

AI Market Summary

Timing chain rattle on cold start—check oil change history and listen carefully during inspection; rare but usually non-critical if maintained properly.
Door lock actuators fail on some examples, causing intermittent locking issues; test all doors multiple times before committing to a purchase.
Solid petrol engine, efficient daily runner with good parts availability and low servicing costs relative to segment competitors.
Mileage sits below typical Irish usage range; verify service records and NCT history to confirm maintenance rather than assuming light use.
Pricing up year-on-year suggests steady demand; no major value trap, though shop around—four active listings mean fair market with room to negotiate.

AI-generated analysis · Carintel.ie · verify independently before purchasing

Analysis & Insights

Price Analysis Costs Import Recalls & Info

Total cost of ownership

2018 Mazda Demio · Petrol · per year

Estimated annual cost

€3,550/yr

Per month

€296/mo

Depreciation

€1,088

31% of total

Fuel / electricity

€1,772

50% of total

Maintenance

€420

12% of total

Road tax

€270

8% of total

Assumptions: Depreciation based on €12,950 current market median at 8.4%/yr (regression from 9 listings across multiple years). Fuel cost assumes 16,000 km/yr (CSO Ireland average), Irish fuel prices. Road tax uses Irish CO2-based motor tax bands (NEDC regime). Maintenance is an AI estimate based on typical independent garage rates for this model.

Annual running cost

16,000 km/yr · Ireland rates

Mazda Demio 2018, all powertrain variants

Market-level estimate

All available fuel types sorted cheapest to run · WLTP figures where available · current market highlighted

PetrolPetrolthis marketcheapest to run

€2,042/yr

5.8 L/100 km, petrol

Fuel €1,772/yrRoad tax €270/yr

median €12,950

Assumptions: 16,000 km/yr (CSO Ireland average). Fuel: petrol €2.00/L, diesel €2.20/L. EV: smart-night €0.17/kWh (80%), day €0.30/kWh (20%). PHEV split: 45% electric, 55% petrol. WLTP consumption figures used where available; real-world usage is typically 10-20% higher. Road tax uses Irish CO2-based motor tax bands (NEDC regime, 2008-2020 registrations).

Annual maintenance

AI estimate · Irish independent garage rates

Maintenance costs

€420

estimated per year

The 2018 Demio petrol is low-maintenance; timing chain (not belt) requires no scheduled replacement, and the NA engine avoids turbo servicing complexity. Budget €420–500 annually for independent garage ownership.

Annual serviceOil change (3.3L 0W-20 synthetic), filter, fluid checks; petrol engines service every 12 months or 15,000 km

€160/yr

Tyres (amortised)165/60R15 typical; budget €140–160 per tyre, 4-year life

€90/yr

Brakes (amortised)Brake pads typically last 50,000+ km; rotors less common; €150–200 per axle

€80/yr

NCT (amortised)€55 every 2 years; petrol cars generally pass with minimal issues

€28/yr

ConsumablesCabin/air filters, spark plugs (every 40,000 km), coolant flush every 2 years

€62/yr

AI-generated estimate · costs vary by usage and service history · not a financial forecast