GLC X253
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Which Mercedes Benz GLC X253 engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Mercedes Benz GLC X253 engine is the most reliable?
GLC200 / 300 (M264 2.0 turbo) — Maint. Sensitive verdict. The 2.0 turbo petrols (the earlier M274 and the later M264 with 48V mild-hybrid EQ Boost — shared across the C/E-Class) give the GLC strong, refined performance. They're chain-driven direct-injection turbos with the modern cautions: timing-chain attention on some earlier units, direct-injection intake carbon over time, turbo/PCV care, and (M264) the 48V belt-starter/EQ system. Paired with the 9G-Tronic auto (robust) and 4MATIC. A documented car with a healthy chain is dependable and quick. Buy on oil and service history; the M264 mild-hybrid is the smoother, later choice.
Which Mercedes Benz GLC X253 engines should you avoid?
None of the Mercedes Benz GLC X253 engines listed are rated "Problematic" or "Avoid" — but always check the service history before buying.
What are the most common Mercedes Benz GLC X253 problems?
The most commonly reported problems across all Mercedes Benz GLC X253 generations and engines: Timing chain (early) / carbon, Turbo / PCV / 48V (M264), DPF / EGR / AdBlue, Injector (high miles), OM651 injector / chain (early 250d).