2026-08-15 · 5 min read
BMW 5 Series Spark Plugs Malaysia
BMW 5 Series spark plug type, replacement interval and Malaysia pricing — iridium plugs.
Plug Spec by Engine
- N20 4-cyl: 4 iridium plugs every 60,000 km. Cost
- N55 6-cyl: 6 iridium plugs every 60,000 km. Cost
- B48 4-cyl (G30 530i): 4 plugs every 60,000 km. Cost
- B58 6-cyl (G30 540i): 6 plugs every 60,000 km. Cost
N55 Plug Access
The N55's spark plugs are accessible from the top of the engine after removing the engine cover and coil packs. The procedure is straightforward but requires a torque wrench — BMW specifies 25 Nm for iridium plugs. Over-tightening strips the aluminium head threads. Never use cheap non-iridium plugs in a turbo BMW — they cannot withstand the combustion pressures and will misfire under boost.