Mercedes-Benz GLC X253 — Reliability

X253 2019–2022 1 engine

Reliability Summary

Engine M264 — 90/100 BEST
Known Issues 2

Engine in this model

BEST 90

M264

1.5/2.0L Turbo 48V I4

Successor of the M274 from 2018: a 1.5 or 2.0 turbo, mostly with a 48V belt starter-generator (EQ Bo...

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Known Issues Across All Engines

Issue Engine Severity Onset
Thermostat / electric water pump failure M264 moderate 80,000 km – 113,000 km
48V belt starter-generator / 48V battery faults (EQ Boost) M264 moderate 80,000 km