Spark plugs Mini F56 Cooper S B48A20A (2.0) — NGK, Bosch, Denso
Spark plugs for Mini F56 Cooper S B48A20A (2.0L, 2014–2021) — OEM-spec NGK, Bosch, Denso and Champion part numbers with replacement interval.
Engine Specifications
| Parameter | Value |
|---|---|
| Make / Model | Mini F56 Cooper S |
| Engine Code | B48A20A |
| Displacement / Fuel | 2.0L petrol |
| Production Years | 2014–2021 |
| Plug type | iridium |
| Thread | M12x1.25 |
| Reach | 26.5 mm |
| Hex size | 16 mm |
| Electrode gap | 0.7 mm |
| Heat range | 8 |
Compatible Spark Plugs
| Brand | Part Number | Type |
|---|---|---|
| NGK | ILZFR6D11 | OE supplier |
| Bosch | 0 242 236 573 | OE supplier |
| Denso | IWF20 | OE supplier |
| Champion | 9003 | aftermarket |
Replacement Interval
| Parameter | Value |
|---|---|
| Mileage | 60 000 km |
| Time | 4 years |
Iridium and platinum plugs last 2–3× longer than standard copper plugs. Replace them on schedule — worn plugs increase fuel consumption by 3–5% and reduce power output.
Choosing Spark Plugs for B48A20A
- Use the correct plug type — the B48A20A requires iridium plugs. Upgrading from standard to iridium is acceptable.
- Check the electrode gap — verify the gap is 0.7 mm before installation.
- Torque correctly — for M12x1.25 thread: aluminium head 20–25 Nm, cast iron head 25–30 Nm.
- Replace as a full set — always replace all cylinders at once to ensure even combustion across all cylinders.
FAQ
Which spark plugs fit Mini F56 Cooper S B48A20A?
NGK ILZFR6D11, Bosch 0 242 236 573, Denso IWF20. All three are OE suppliers and guarantee compatibility with this engine.
How often should spark plugs be replaced on Mini F56 Cooper S?
Every 60 000 km or 4 years, whichever comes first. Iridium plugs (ILZFR6D11) have a longer service life compared to standard nickel plugs.
Can I fit a different type of spark plug in the B48A20A?
Upgrading to iridium or platinum is acceptable and gives a slight improvement in cold starts. Do not change the heat range (8) — an incorrect heat range can cause pre-ignition or fouling.
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