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Mercedes-Benz GLB buying guide (Ireland, 2026)
What a used Mercedes-Benz GLB costs in Ireland, how it does at the NCT, what goes wrong and what it costs to fix. Based on 155 for sale right now.
Our take on the Mercedes-Benz GLB
The 2.0 diesel is the most common engine (83% of those with a known engine), and it usually lasts around 400k km.
Check a Mercedes-Benz GLB's priceNCT pass rate by year
Used Mercedes-Benz GLB 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 | €69,450 | 0k km | 36 |
| 2026 | €63,900 | 1k km | 43 |
| 2025 | €57,950 | 19k km | 10 |
| 2024 | €47,950 | 53k km | 13 |
| 2023 | €42,900 | 59k km | 18 |
| 2022 | €33,850 | 102k km | 10 |
| 2021 | €32,950 | 120k km | 18 |
| 2020 | €29,950 | 110k km | 7 |
Mercedes-Benz GLB NCT pass rate
How often Mercedes-Benz GLBs 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 | 75% | 80% |
Most common reasons a 2021 Mercedes-Benz GLB fails: safety equipment (7.5% of tests, more than most cars), shock absorbers (7.2% of tests, more than most cars), wheels & tyres (4.2% of tests), wheel alignment (3.9% of tests, more than most cars).
Common Mercedes-Benz GLB 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 Diesel | ~400k km | ~€200 | 85 |
| 1.3 Petrol | ~300k km | ~€210 | 9 |
| 1.5 Hybrid | ~300k km | ~€180 | 8 |
2.0 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 GLB
Parts from AUTODOC Ireland: pick your car on the parts page to get the right fit.
Brake discsBrake padsClutch kitsTiming chain kitsShock absorbersWheel bearingsTrack rod endsFiltersWiper bladesHeadlight bulbsGlow plugsEGR valves
Quick bits on Amazon
Faster delivery for small things.
Wiper bladesBulbsBatteryOBD2 fault code readerJump starter
Before you buy a used Mercedes-Benz GLB
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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