I would like to know whether I can use NGK 90223 spark plug on my R56 - 2011 Mini Hardtop(~50k miles). The original spark plugs on it (Beru 12ZR6SP2) seems to have worn and engine is misfiring under load. Beru according to the spec seems to have a spark gap of 1mm(ones on my engine has around 1.2-1.3mm though) and NGK 90223 has about 0.8mm gap. NGK 90223 is recommended by many auto-stores as an OEM replacement. Since the spark gap is different I am not sure whether I can replace Beru 12ZR6SP2 with NGK 90223. Can I ? What is the Mini recommended spark gap for R56 ?

 

You can gap them yourself.

It might be a coil going bad, too.

 

For an '11 R56 Cooper Base you can use NGK PLZKBR7B8DG (90223) or Beru 12 ZR-6 SP02 HERE. Beru is the OEM supplier.