2026-07-22 · 5 min read
Mercedes CLS Spark Plug Replacement Malaysia — M276/M264/M256
C218 M276 V6 uses 6 iridium plugs (60,000 km). C257 M264 uses 4 plugs; M256 uses 6 plugs. OEM NGK or Bosch. Malaysia workshop cost: M276 RM 500–800; M264 RM 300–500; M256 RM 500–750.
CLS Spark Plugs — By Engine
- C218 M276 V6: 6 iridium plugs — replace every 60,000 km; cost RM 500–800
- C257 M264 2.0T: 4 plugs every 60,000 km; cost RM 300–500
- C257 M256 3.0T: 6 plugs every 60,000 km; cost RM 500–750
Spark Plugs — Mercedes Petrol Engines Malaysia
Mercedes-Benz petrol engines use NGK or Bosch iridium spark plugs — change every 60,000 km. On turbocharged M270/M274 engines (C200/C180/GLC200), misfires under boost degrade the catalytic converter and can damage the turbo — do not delay plug replacement. Budget RM 350–550 for a set of 4 iridium plugs including labour. Bosch OE plugs are the factory specification — aftermarket premium plugs (NGK Laser Iridium) are an acceptable alternative. Never use copper plugs on modern Mercedes turbo engines.