2026-07-22 · 5 min read
Mercedes GLC Coupe Coolant Service Malaysia
GLC Coupe uses MB 325.6 coolant — same spec as GLC SUV. Change every 3 years or 60,000 km. Plastic thermostat housing is the same C253 weak point. Malaysia cost RM 180–280.
GLC Coupe Coolant
- MB 325.6 only — never mix with green/blue antifreeze
- Change every 3 years or 60,000 km; check plastic thermostat housing for cracks
- Malaysia workshop cost: RM 180–280
Mercedes Coolant — Malaysia Maintenance
Mercedes-Benz uses MB 325.6 coolant (pink/blue OAT type) — do NOT mix with conventional green coolant, which causes corrosion in the aluminium engine and coolant system. Check the coolant level monthly in Malaysia's heat. Flush every 3 years or 60,000 km. For turbocharged models, let the engine idle for 2 minutes before shutdown after heavy use — this allows the coolant to carry heat away from the turbo bearings. Overheating is uncommon on modern Mercedes but can occur if the coolant level drops and is not checked.