2026-07-22 · 5 min read
Mercedes-Benz GLC — 发电机
GLC Alternator — Smart Charging System
GLC X253 M274/M264 uses a smart alternator. Voltage regulation failure is the most common fault — the alternator charges at an inconsistent voltage, draining the battery slowly over weeks. A workshop voltage load test under various conditions (idle, rev to 2,000 rpm, AC on) can confirm the fault before replacement.
Cost
- Alternator + labour + IBS coding