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Mercedes-Benz GLC-Class buying guide (Ireland, 2026)

What a used Mercedes-Benz GLC-Class costs in Ireland, how it does at the NCT, what goes wrong and what it costs to fix. Based on 440 for sale right now.

Executive car See every executive car's typical price.

Typical asking price€51,900€25,900–€83,900 for most

For sale now44038% diesel

First-time NCT pass (2021)84%other cars the same year: 80%

In short: the Mercedes-Benz GLC-Class passes the NCT more often than other cars the same year (84% vs 80%), has no especially costly known faults and its most common engine usually lasts about 300k km.

Our take on the Mercedes-Benz GLC-Class

A 2023 Mercedes-Benz GLC-Class typically advertises at €53,950 and a 2018 one at €25,950, so it loses roughly 14% of its value a year at that age. At the NCT, the 2016–2021 cars do better than other cars the same year. The 2.0 hybrid is the most common engine (60% of those with a known engine), and it usually lasts around 300k km.

Check a Mercedes-Benz GLC-Class's price NCT pass rate by year

Used Mercedes-Benz GLC-Class prices by year

Typical asking price by registration year, and typical mileage. Private sellers usually take 5–10% less than asking; expect dealers to be a little dearer.

Year	Typical price	Typical mileage	For sale
2027	€85,700	0k km	45
2026	€73,950	8k km	60
2025	€66,900	18k km	47
2024	€62,900	45k km	37
2023	€53,950	66k km	38
2022	€41,500	96k km	54
2021	€36,950	101k km	37
2020	€32,400	127k km	33
2019	€28,250	133k km	29
2018	€25,950	139k km	31
2017	€22,500	168k km	19
2016	€18,950	174k km	10

Mercedes-Benz GLC-Class NCT pass rate

How often Mercedes-Benz GLC-Classes pass their NCT first time, compared with other cars the same year (Road Safety Authority (RSA), NCT make & model data 2025, initial tests).

Year	Pass first time	Other cars, same year
2021	84%	80%
2020	80%	75%
2019	71%	74%
2018	61%	67%
2017	67%	64%
2016	59%	55%

Most common reasons a 2021 Mercedes-Benz GLC-Class fails: wheels & tyres (5.3% of tests), wheel alignment (4% of tests, more than most cars), safety equipment (2.7% of tests), steering & suspension (2.1% of tests, more than most cars).

Common Mercedes-Benz GLC-Class problems

Known weak spots to check before you buy, with typical Irish garage costs if the problem is there.

Automatic gearbox health · €300–€2,500

Make sure the gear changes are smooth when warm, check for a gearbox warning light and ask if the gearbox oil was ever changed.

Engines and how long they last

Engine	Usually lasts	Motor tax / year	For sale
2.0 Hybrid	~300k km	~€200	185
2.0 Diesel	~400k km	~€200	86
2.1 Diesel	~400k km	~€280	35

2.0 Diesel: usual problem: injector seals and timing chain on 2.1 CDI.

2.1 Diesel: usual problem: injector seals and timing chain on 2.1 CDI.

"Usually lasts" is the mileage these engines commonly reach before major work; service history matters more than the number.

Parts for the Mercedes-Benz GLC-Class

Parts from AUTODOC Ireland: pick your car on the parts page to get the right fit.

Brake discs Brake pads Clutch kits Timing chain kits Shock absorbers Wheel bearings Track rod ends Filters Wiper blades Headlight bulbs Glow plugs EGR valves

Quick bits on Amazon

Faster delivery for small things.

Wiper blades Bulbs Battery OBD2 fault code reader Jump starter

Before you buy a used Mercedes-Benz GLC-Class

Run a history check on the reg (write-off, finance owing, mileage), ask when the last service was done and for receipts, and start it from cold yourself. The used car checklist takes you through a viewing step by step.

Other Mercedes-Benz guides

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