2026-07-22 · 5 min read
Mercedes-Benz S-Class Spark Plug Replacement Malaysia — V6/V8/M256
S-Class V6 M276 uses 6 plugs, V8 M278 uses 8 plugs — all iridium, 60,000 km interval. More plugs = higher labour cost. M256 inline-6 (W223) has 6 plugs. Replacement costs for Malaysia.
Spark plug service on the S-Class is expensive due to high count and difficult access. V6 S-Class: 6 iridium plugs. V8 S-Class: 8 iridium plugs. Replace every 40,000 km in Malaysian urban driving. Labour is significant as the intake manifold or other components must be removed for rear bank access on the V8.
Cost Guide
- V6 (6 plugs, supply + labour): RM 600–800
- V8 (8 plugs, supply + labour): RM 900–1,400