Analysing market data
Fetching listings · computing fair value · building charts
Analysing market data
Fetching listings · computing fair value · building charts
Market Intelligence
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Diesel
32 days avg on market · Low data confidence
No NI listings currently available
There are 12 NI listings for this model. Switch to "All" or "NI" source filter above to see pricing data.
Updated 13h ago · NI · Low confidence
Expected price
€18,995
retail ~€18,995 · private ~€18,190 Pricing assumptionsAssumptions· Good condition, full service history· No outstanding finance or damage· Based on ads seen in the past 30 days
Est. trade-in
€12,733 – €15,462
Avg mileage
167k km
typical 155k km
Days listed
32d
avg on market · demand 53/100
2018 Audi A4 · Diesel · per year
Estimated annual cost
€4,864/yr
Per month
€405/mo
Depreciation
€2,317
48% of total
Fuel / electricity
€1,597
33% of total
Maintenance
€750
15% of total
Road tax
€200
4% of total
Assumptions: Depreciation based on €18,995 current market median at 12.2%/yr (regression from 67 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.
16,000 km/yr · Ireland rates
Audi A4 2018, all powertrain variants
Market-level estimateAll available fuel types sorted cheapest to run · WLTP figures where available · current market highlighted
4.8 L/100 km, diesel
median €18,825
5.4 L/100 km, petrol
median €23,398
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).
AI estimate · Irish independent garage rates
€750
estimated per year
2.0 TDI diesels require vigilant DPF monitoring and regular motorway driving to prevent regeneration faults; budget €400–€800 every 80,000 km for DPF servicing or cleaning, and plan for injector cleaning/replacement around 100,000 km if carbon build-up occurs.
AI-generated estimate · costs vary by usage and service history · not a financial forecast
23 year-cohort data points
This Audi A4 is holding its value 5.8% better than the industry average, suggesting strong demand.
Market rate from 23 year-cohort medians (log-linear trend). Industry rate: 18.0%/yr for Audi. Not a financial forecast.
Audi A4 · Diesel
NI · by value score
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