Mercedes-Benz GLC (X253) — complete buyer's guide
The complete reference for the first-generation Mercedes-Benz GLC (X253, 2015–2022): platform, dimensions, every engine, the 2019 facelift, known issues and a used-buyer checklist.
Production and platform
Produced from mid-2015 to mid-2022. First generation of the GLC (successor to the GLK X204). Available as a five-door SUV (X253) and five-door Coupé (C253). Long-wheelbase version (V253) mainly for China. Built on the MRA platform (related to the C-Class W205). 4MATIC all-wheel drive standard on most versions. Facelift introduced in 2019 for the 2020 model year. Related models include AMG GLC 43 and GLC 63 / 63 S. Primary assembly in Bremen, Germany (additional production in other markets). Replaced by the X254 from 2022.
Driving experience
Comfortable, quiet and more car-like than its height suggests. The GLC steers accurately with light, consistent weighting, rides well on the standard suspension, and stays hushed at motorway speeds. 4MATIC is standard on most versions and adds sure-footed traction without altering the relaxed character. The M274/M264 petrols are smooth and willing, the OM654 diesel is the economical distance choice, and the 300 e plug-in covers short trips on electric power. The 9G-Tronic shifts unobtrusively. It is a well-rounded, easy-to-live-with compact SUV that does everything competently.
Engines
Petrol (M274 / M264 / M276 / M177)
| Engine | Power | Torque | 0–100 km/h | |
|---|---|---|---|---|
| GLC 200 / GLC 250 / GLC 300 | 2.0 L · 4-cyl (M274 / M264) | 197–258 hp145–190 kW | 320–370 Nm | 6.2–7.9 s |
| AMG GLC 43 | 3.0 L · V6 biturbo (M276) | 367–390 hp270–287 kW | 520 Nm | 4.9 s |
| AMG GLC 63 / 63 S | 4.0 L · V8 biturbo (M177) | 476–510 hp350–375 kW | 650–700 Nm | 3.8–4.0 s |
Diesel (OM651 / OM654 / OM642 / OM656)
| Engine | Power | Torque | 0–100 km/h | |
|---|---|---|---|---|
| GLC 200 d / GLC 220 d / GLC 250 d | 2.1/2.0 L · 4-cyl (OM651 / OM654) | 163–204 hp120–150 kW | 360–500 Nm | 7.6–8.9 s |
| GLC 300 d / GLC 350 d / GLC 400 d | 2.0/3.0/2.9 L (OM654 / OM642 / OM656) | 245–330 hp180–243 kW | 500–700 Nm | 5.1–6.5 s |
Plug-in hybrid (e / de)
| Engine | Power | Torque | 0–100 km/h | |
|---|---|---|---|---|
| GLC 300 e / GLC 350 e / GLC 300 de | 2.0 L · 4-cyl + e-motor | 306–320 hp225–235 kW | 560–700 Nm | 5.7–6.2 s |
Transmissions
9G-Tronic automatic (AMG models use specific units). All engines longitudinal. Euro 6 compliance standard.
Dimensions and practicality
SUV length approximately 4,655–4,682 mm. Width around 1,890 mm. Height around 1,620–1,644 mm. Wheelbase 2,873 mm. Boot volume approximately 550 litres (seats up; some sources cite 505–550 litres), expanding to roughly 1,600 litres with seats folded. Plug-in hybrid versions reduced to approximately 395 litres. Fuel tank capacity typically 50–66 litres depending on engine. Coupé has a more sloping roofline and slightly reduced practicality. Compared with the previous GLK: longer, wider, and larger boot. Compared with the later X254: shorter overall and smaller boot (approximately 550 vs 620 litres). Practicality is typical of the premium compact SUV class.
Facelift (2019)
Introduced at the 2019 Geneva Motor Show for the 2020 model year. Main changes: revised exterior styling (grille, lighting, bumpers); updated interior with new steering wheel and MBUX infotainment ("Hey Mercedes" voice control); digital cockpit (12.3-inch option); new engines (OM654 diesel, M264 petrol with mild hybrid); equipment and driver-assistance updates; engines and transmissions refined.
Differences from the previous model (GLK X204)
Larger overall size, more modern design, improved interior space and boot volume. Switch to the MRA platform with better refinement and technology. Introduction of the Coupé body style. More advanced electronics and driver aids. Engines updated (M274/OM651 initially). Overall more premium and efficient than the GLK.
Known issues and weak points
Transmission (9G-Tronic)
- Jerky low-speed shifts or harshness reported from higher mileage if fluid is neglected.
- Fluid changes (recommended earlier than official "lifetime" intervals by specialists) improve behaviour.
Petrol (M274 / M264)
- Camshaft adjuster solenoid leaks possible on M274 (oil can enter wiring harness).
- Cylinder head valve guide / seat wear reported on some M264 examples (misfires, oil consumption).
- 48-volt mild-hybrid (EQ Boost) electrical issues possible on facelift cars (start problems, warnings).
Diesel (OM651 / OM654)
- Timing chain tensioner seal leak and chain stretch risks on early OM651 (specific recalls). Piezo injector faults possible.
- OM654: timing chain fracture and electric coolant pump recalls on certain production periods (verify by VIN).
- DPF clogging and AdBlue/NOx sensor faults more common on short-trip use.
- EGR issues possible.
Other
- Front suspension bush and control arm wear (clunks, tyre skipping on full lock reported on some early cars).
- Air suspension (Airmatic) leaks or compressor issues on equipped cars.
- COMAND screen blackouts on pre-facelift examples.
- Artico synthetic leather cracking.
- Water ingress possible on some early builds.
- Multiple recalls (steering, airbags, timing chain, fuel system, software). Always verify full VIN status.
- Transfer case oil service recommended on 4MATIC to avoid clutch wear.
What a buyer should check
- Full service history, including transmission fluid changes and any AdBlue/DPF interventions.
- VIN-specific recall and service campaign status (timing chain, coolant pump, steering, airbags, emissions software, 48-volt system).
- Transmission behaviour from cold and in low-speed traffic (smooth shifts, no harshness).
- Cold-start engine noise (timing chain rattle on diesels).
- Oil leaks, cooling system condition, and any misfires on petrol models.
- For diesels: AdBlue system function, DPF regeneration history, and smoke on hard acceleration.
- Suspension condition, tyre wear pattern, and any clunks or tyre hop on full lock.
- Air suspension operation (if fitted) and level ride height.
- Infotainment screen function and overall electronic systems.
- Signs of water ingress or interior wear.
Running costs
Indicative costs for the Mercedes-Benz GLC X253 in normal Belgian/EU use (approximate 2026 figures). Actual figures vary by region, driving style and service location.
Fuel consumption
- GLC 200 / 250 / 300 (M274/M264 2.0): typically 6.5–9.0 L/100 km.
- GLC 220 d / 250 d (OM651/OM654): typically 5.5–7.0 L/100 km; AdBlue consumption low.
- GLC 300 d (OM654): typically 6.0–7.5 L/100 km.
- GLC 300 e PHEV: highly dependent on charging; can be very low if mostly electric, or similar to petrol if not charged.
Maintenance
Mercedes service is premium-priced. Oil service typically €150–300. 9G-Tronic automatic fluid service every ~60,000 km is recommended. Tyres and brakes add up. AdBlue consumption on the diesel is low. AIRMATIC air suspension can be expensive to repair. Independent Mercedes specialists keep bills more reasonable than dealers.
Road tax / registration (Belgium)
Highly region-dependent (Flanders more CO₂-oriented; Wallonia/Brussels influenced by power/CV and mass). The 2.0-litre four-cylinders sit in moderate brackets. Expect roughly €250–900+/year depending on engine, exact CO₂, region and any ongoing reforms. One-off BIV/TMC on first Belgian registration is also engine- and age-sensitive.
Insurance and LEZ
Premium compact SUV; AMG variants rate higher. Annual premium heavily dependent on age, history, location and cover level. Full comprehensive is expensive on higher-value examples. LEZ: all engines fully Euro 6 compliant and unrestricted in Belgian/EU low-emission zones.
Belgian/EU market notes
Diesel versions (especially GLC 220 d) were very popular for company-car use due to tax treatment, fuel economy, and towing capability. Petrol and plug-in hybrid models became more relevant later as taxation changed. Euro 6 compliance is standard; facelift cars meet later standards. Car-Pass documentation is required for Belgian sales. Many examples will have moderate-to-higher annual mileage from company fleets with regular maintenance. The SUV is far more common than the Coupé. Facelift examples (2019–2022) with OM654 diesel or mild-hybrid petrol generally show fewer engine-specific issues than early OM651 cars.
Summary
This generation was a strong seller in the premium compact SUV segment, offering good space and refinement for the time, provided the known items (transmission fluid service, diesel timing chain/AdBlue campaigns, petrol camshaft/48-volt issues, suspension wear, and full VIN recall status) are verified. Facelift cars are generally more stable. Early production requires closer scrutiny of service history and specific engine campaigns.
Belgian taxes & LEZ