2026-07-22 · 5 min read
Mercedes G-Class Carbon Cleaning Malaysia — M177 V8
G63 AMG M177 V8 direct injection — carbon buildup on intake valves at 60,000–80,000 km. 8 cylinders means more intake ports to clean. Walnut shell blast cleaning RM 1,200–2,000 for full V8.
G-Class Carbon Cleaning — M177 V8
- M177 direct injection — 8 intake valves accumulate carbon at 60,000–80,000 km
- V8 = more intake ports to clean; walnut blast cost RM 1,200–2,000 for full V8
Carbon Buildup — Mercedes Direct Injection
Mercedes-Benz M270, M274, M276, and M177 engines use direct injection — intake valve carbon buildup is a known issue, especially in vehicles used predominantly for short urban trips in KL/PJ. Every 3–6 months, take a 30-minute highway run at 3,500+ rpm to burn off soft deposits. An intake carbon cleaning service (walnut blasting or chemical) costs RM 500–1,000 at a specialist workshop and is recommended every 50,000–80,000 km. Signs of significant buildup: rough idle, cold-start misfires, reduced power.