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

The median asking price for a 2018 Mercedes-Benz GLC-ClassDiesel on the Irish used-car market is around €27,751, based on 3 live listings tracked by Carintel.ie.

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

A Mercedes-Benz GLC-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 GLC-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 GLC-ClassDiesel?

This page estimates annual running costs for a 2018 Mercedes-Benz GLC-ClassDiesel using WLTP consumption data, current Irish fuel and electricity prices, and Irish motor tax bands.

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Analysing market data

Fetching listings · computing fair value · building charts

Engine:All engines 2.0L · 3 3.0L · 3

Filter by trim, gearbox, source

Source:ROI All NI

Market Intelligence

Mercedes-Benz GLC-Class2018

Diesel · 2.0L

34 days avg on market · Low data confidence

High DemandLimited Data

No ROI listings currently available

There are 3 NI listings for this model. Switch to "All" or "NI" source filter above to see pricing data.

Updated 7h ago · ROI · Low confidence

Median listing price

€27,751

private sale ~€24,465 Pricing assumptionsAssumptions· Good condition, full service history· No outstanding finance or damage· Based on ads seen in the past 30 days

Est. trade-in

€19,184 – €23,295

15–30% below private sale

Avg mileage

96k km

typical 86k km

Days listed

34d

avg on market · demand 72/100

AI Market Summary

Diesel engines demand highway miles—frequent short journeys cause DPF clogging, limp mode, and costly regeneration issues. Verify full service history and ask specifically about motorway use.
At 168k km median, mileage sits at top end of 8-year-old range; acceptable if highway-driven and documented, risky if city-only. Request detailed maintenance records before committing.
Injector stiction and EGR valve faults are recurring problems on this generation—expect warning lights and rough starts. Budget €800–€1,500 for diagnosis and repair if issues emerge post-purchase.
Check engine warning lights and perform extended road test above 60 km/h to confirm DPF is regenerating cleanly; limp mode activation during test is a red flag.
Pricing sits mid-market for the segment; not a bargain, but fair if service history is strong and no fault codes present. Three listings suggest moderate stock.

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

Analysis & Insights

Price Analysis Costs Import Recalls & Info

Vehicle specification

Manufacturer WLTP data

Power

185 bhp

Torque

450 Nm

332 lb·ft

0–62 mph

7.95s

134 mph top

Engine

3.0L

3000 cc

Boot space

550L

1600L folded

Seats

5 doors

Fuel economy & emissions

Combined

46.35 mpg

6.1 L/100km

Urban

40.95 mpg

Extra urban

50.9 mpg

Fuel tank

50L

Dimensions

Length

4.66m

4656 mm

Width

1.89m

Wheelbase

2.87m

Kerb weight

1,850 kg

2,525 kg gross

Safety & ownership

Euro NCAP

★★★★★

Adult 95% · Child 89%

Insurance

Group 34E

Warranty

3 years

Reliability & Safety Recalls

Mercedes-Benz GLC-Class 2018

Reliability

3/5

The 2018 GLC-Class diesel is a well-built premium SUV with solid engineering, but diesel powertrains from this era face common fuel system and emissions control issues. Ownership costs are moderate for an independent garage, though parts remain expensive. Fuel economy is respectable but not exceptional compared to petrol variants.

Known issues

DPF regeneration issues causing limp mode and excessive soot accumulation, particularly on vehicles with frequent short journeys
Diesel particulate filter and exhaust gas recirculation (EGR) valve problems leading to warning lights and loss of power
Common rail fuel injector stiction and electrical faults, resulting in rough idle and starting difficulties
Adblue heater element failures causing error messages and reduced engine performance
Turbocharger bearing wear on higher-mileage examples, with gradual loss of boost pressure
Electronic throttle control (ETC) faults and occasional gearbox (9G-TRONIC) shudder during low-speed manoeuvres

Good for

Strong torque delivery and highway cruising efficiency
Spacious interior with comfortable driving position and good visibility
Solid build quality and premium materials throughout the cabin
Respectable fuel economy on longer journeys (7.5–8.5 L/100 km real-world)

Years to avoid: 2017, 2018

AI-generated summary · verify with DVSA & owner forums

Safety Recalls3 found

Engine2020

Fuel pump module seal failure allowing fuel to enter the charcoal canister and potential fuel odour inside the vehicle

Remedy: Replacement of fuel pump module seal and charcoal canister inspection

20V-397

Brakes2019

Potential loss of brake force assistance due to brake vacuum pump failure on diesel models

Remedy: Replacement of brake vacuum pump

19V-088

Fuel System2018

High-pressure fuel pump failure on diesel engines due to internal corrosion

Remedy: Replacement of high-pressure fuel pump and fuel filter

18V-645

AI-generated · verify at gov.uk/check-vehicle-recall

Potential value opportunities

by value score

No listings yet.

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