2026-07-22 · 5 min read
Mercedes-Benz GLC Carbon Buildup — GDI Intake Cleaning Malaysia
GLC M274 direct injection engine accumulates carbon on intake valves. Walnut blasting or chemical induction cleaning is recommended every 60,000–80,000 km. Costs and service at 4M Car Care.
All GLC models (GLC 200/GLC 300) use GDI — no fuel washing over the intake valves. GLC is commonly used as a family SUV in Malaysia: school runs, short city trips, AC always on — worst profile for carbon accumulation.
- Chemical induction cleaning (preventive, 40,000 km): RM 150–300
- Walnut blasting (heavy buildup, 50,000–70,000 km): RM 700–1,300