How much is a 2018 Mercedes-Benz B-ClassDiesel worth in Ireland?

The median asking price for a 2018 Mercedes-Benz B-ClassDiesel on the Irish used-car market is around €15,499, based on 9 live listings tracked by Carintel.ie.

How much does a 2018 Mercedes-Benz B-Class depreciate per year?

A Mercedes-Benz B-Class loses roughly 16.0% 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 Mercedes-Benz B-Class 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 Mercedes-Benz B-ClassDiesel?

This page estimates annual running costs for a 2018 Mercedes-Benz B-ClassDiesel 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 · 9 Petrol · 4 Overview

Filter by trim, gearbox

Trim:Urban Edition · 3 Unknown · 5

Gearbox:Manual · 6 Automatic · 2

Market Intelligence

Mercedes-Benz B-Class2018

Diesel

€17,125ROI listing median

47 days avg on market · Low data confidence

Normal DemandMedium Confidence

Listing price range

€15k – €20k

25th to 75th percentile

Listings

ROI active now

Updated 5h ago · ROI · Low confidence

Median listing price

€17,125

private sale ~€15,097 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

126k km

typical 134k km

Days listed

47d

avg on market · demand 58/100

AI Market Summary

Compact, practical MPV with strong build quality and decent running costs for its size; real-world diesel economy appeals to higher-mileage drivers.
Fairly priced in the current market, but watch for inflated examples—check comparable 2017–2019 models to confirm you're not overpaying for age.
DPF clogging is the main threat here, especially if the car sat idle or did short urban trips; timing chain tensioner rattle on cold starts signals wear—listen carefully on viewing.
Before buying, request full service history and confirm DPF regeneration intervals were followed; get an independent diesel specialist pre-purchase check to assess engine condition and electrical stability.
Run an NCT history check (free online) to spot any failed emissions tests or repeat advisories, a sign of DPF trouble or sensor faults.

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

Analysis & Insights

Price Analysis Costs Import Recalls & Info

Total cost of ownership

2018 Mercedes-Benz B-Class · Diesel · per year

Estimated annual cost

€4,863/yr

Per month

€405/mo

Depreciation

€2,480

51% of total

Fuel / electricity

€1,443

30% of total

Maintenance

€750

15% of total

Road tax

€190

4% of total

Assumptions: Depreciation based on €15,499 current market median at 16.0%/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

Mercedes-Benz B-Class 2018, all powertrain variants

Market-level estimate

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

DieselDieselthis marketcheapest to run

−39%€1,633/yr

4.1 L/100 km, diesel

Fuel €1,443/yrRoad tax €190/yr

median €15,499

PetrolPetrol

€2,680/yr

7.5 L/100 km, petrol

Fuel €2,400/yrRoad tax €280/yr

median €19,450

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

€750

estimated per year

Diesel variants require DPF vigilance and are sensitive to short-trip driving; budget for potential timing chain and electrical repairs as the vehicle ages beyond 100,000 km.

Annual serviceOil and filter change (5.5L 5W-30 synthetic); includes basic fluid checks and filter renewal

€280/yr

Tyres (amortised)225/50R17 typical; amortised over 4 years at €600 per set

€150/yr

Brakes (amortised)Disc and pad replacement amortised; diesel models experience heavier wear due to weight

€120/yr

DPF cleaning/inspectionPreventative DPF clean every 80,000–100,000 km if not regularly regenerated; can prevent costly blockage

€100/yr

NCT (amortised)€55 divided by 2-year test cycle

€27.5/yr

Consumables & miscellaneousAir filter, cabin filter, spark plugs (as needed), coolant top-up, and AdBlue if DEF system active

€72.5/yr