Analysing market data
Fetching listings · computing fair value · building charts
Analysing market data
Fetching listings · computing fair value · building charts
Market Intelligence
Diesel
44 days avg on market · Low data confidence
No NI listings currently available
There are 11 NI listings for this model. Switch to "All" or "NI" source filter above to see pricing data.
Updated 12h ago · NI · Low confidence
Expected price
€19,999
retail ~€19,999 · private ~€17,631 Pricing assumptionsAssumptions· Good condition, full service history· No outstanding finance or damage· Based on ads seen in the past 30 days
Est. trade-in
€12,342 – €14,986
Avg mileage
146k km
typical 147k km
Days listed
44d
avg on market · demand 47/100
2018 Mercedes-Benz C-Class · Diesel · per year
Estimated annual cost
€5,191/yr
Per month
€433/mo
Depreciation
€3,000
58% of total
Fuel / electricity
€1,381
27% of total
Maintenance
€620
12% of total
Road tax
€190
4% of total
Assumptions: Depreciation based on €19,999 current market median at 15.0%/yr (regression from 31 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
Mercedes-Benz C-Class 2018, all powertrain variants
Market-level estimateAll available fuel types sorted cheapest to run · WLTP figures where available · current market highlighted
4.2 L/100 km, diesel
median €20,980
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
€620
estimated per year
OM651 diesel engine is robust but DPF and emissions system maintenance is essential; use quality synthetic oil, monitor AdBlue level, and address warning lights promptly to avoid expensive repairs.
AI-generated estimate · costs vary by usage and service history · not a financial forecast
12 year-cohort data points
This Mercedes-Benz C-Class is holding its value 2.0% better than the industry average, suggesting strong demand.
Market rate from 12 year-cohort medians (log-linear trend). Industry rate: 17.0%/yr for Mercedes-Benz. Not a financial forecast.
Mercedes-Benz C-Class · Diesel
NI · by value score
Buyers also consider
Found this useful?
Sign up to our mailing list to stay up to date on new developments and features.