2026-07-22 · 5 min read
Mercedes-Benz S-Class Carbon Buildup — V6/V8 GDI Cleaning Malaysia
S-Class V6 M276 and V8 M278 direct injection engines accumulate carbon deposits. On a 6 or 8-cylinder engine, professional walnut blasting is more involved but highly effective. Costs in Malaysia.
S-Class V6 and V8 engines use direct injection (GDI) — the same carbon buildup issue applies as with A-Class/CLA/GLA. On larger displacement engines, carbon accumulates faster due to higher oil mist volume from the crankcase. By 60,000–80,000 km carbon cleaning is typically needed.
Carbon Cleaning on V6/V8
- Walnut shell blasting: RM 1,500–2,500 for V6; RM 2,000–3,500 for V8 (more ports to clean)
- Symptoms: rough idle, hesitation, reduced fuel economy — same as 4-cylinder models but more pronounced on V8