How much is a 2018 BMW 3 SeriesPetrol worth in Ireland?

The median asking price for a 2018 BMW 3 SeriesPetrol on the Irish used-car market is around €18,450, based on 7 live listings tracked by Carintel.ie.

How much does a 2018 BMW 3 Series depreciate per year?

A BMW 3 Series loses roughly 16.8% of its value per year on the Irish used-car market based on Carintel.ie's regression across active listings.

Is it cheaper to import a 2018 BMW 3 Series 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 BMW 3 SeriesPetrol?

This page estimates annual running costs for a 2018 BMW 3 SeriesPetrol 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

Switch powertrain:Diesel · 104 Plugin_hybrid · 43 Petrol · 12 Overview

Engine:All engines 1.5L · 7 2.0L · 5

Filter by trim, gearbox, source1 active

Trim:All M Sport Pro · 1 SE · 1 Sport · 2 Unknown · 3

Gearbox:Manual · 4 Automatic · 3

Source:ROI All NI

Market Intelligence

BMW 3 Series2018

Petrol · 1.5L

€14,950ROI listing median

21 days avg on market · Low data confidence

High DemandLimited Data

Listing price range

€15k – €19k

25th to 75th percentile

Listings

ROI active now

Updated 10h ago · ROI · Low confidence

Median listing price

€14,950

private sale ~€13,921 Pricing assumptionsAssumptions· Good condition, full service history· No outstanding finance or damage· Based on ads seen in the past 30 days

Est. trade-in

€10,465 – €12,708

15–30% below private sale

Avg mileage

171k km

typical 199k km

Days listed

21d

avg on market · demand 85/100

AI Market Summary

Timing chain issues common on 1.5L turbo engines — listen for cold-start rattle and budget €800–1,200 for tensioner work before buying.
Direct injection carbon buildup causes rough idle and hesitation; walnut blasting costs €400–800 and is preventative maintenance worth asking about upfront.
Median mileage at 63k km sits well below Irish average for this age — verify service history and obtain independent inspection to confirm condition.
Electrical gremlins (infotainment, battery drain, coding faults) are tedious to diagnose; have a pre-purchase scan done by a BMW specialist, not a generalist.
Solid used market value for a 3 Series — price range reflects demand; check how many previous owners and whether major work has been done.

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

Analysis & Insights

Price Analysis Costs Import Recalls & Info

Total cost of ownership

2018 BMW 3 Series · Petrol · per year

Estimated annual cost

€6,230/yr

Per month

€519/mo

Depreciation

€3,100

50% of total

Fuel / electricity

€2,080

33% of total

Maintenance

€650

10% of total

Road tax

€400

6% of total

Assumptions: Depreciation based on €18,450 current market median at 16.8%/yr (regression from 7 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

BMW 3 Series 2018, all powertrain variants

Market-level estimate

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

Plug-in HybridPlugin_hybridcheapest to run+ charger needed

−38%€1,534/yr

45% electric (18.0 kWh) + 55% petrol (6.5 L/100 km)

Fuel €1,364/yrRoad tax €170/yr

median €18,311

DieselDiesel

−22%€1,942/yr

5.0 L/100 km, diesel

Fuel €1,742/yrRoad tax €200/yr

median €21,745

PetrolPetrolthis market

€2,480/yr

6.5 L/100 km, petrol

Fuel €2,080/yrRoad tax €400/yr

median €21,133

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

€650

estimated per year

Petrol 3 Series requires synthetic oil and timely servicing to prevent carbon buildup and timing chain issues; water pump and fuel pump failures are age-related expenses to budget for at 80k+ miles.

Annual serviceOil and filter change (5.2L 0W-30 synthetic), spark plugs every 2 years, cabin filter

€280/yr

Tyres (amortised)BMW OEM tyres typically 225/45R17 or 225/40R18; €450–550 per set every 4–5 years

€120/yr

Brakes (amortised)Brake pads €250–350 every 60,000 km; rotors often require replacement (€150–250 per axle)

€100/yr

NCT (amortised)€55 every 2 years for road tax/emissions test (petrol Euro 6 generally passes)

€27/yr

Consumables & preventativeCoolant flush every 2 years (€80), fuel filter (€40), air filter (€30), brake fluid top-ups (€15)

€123/yr

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