Spark plugs BMW 3 Series F30 N20B20 (2.0 turbo) — NGK, Bosch, Denso
Spark plugs for BMW 3 Series F30 N20B20 (2.0 turboL, 2011–2018) — OEM-spec NGK, Bosch, Denso and Champion part numbers with replacement interval.
Engine Specifications
| Parameter | Value |
|---|---|
| Make / Model | BMW 3 Series F30 |
| Engine Code | N20B20 |
| Displacement / Fuel | 2.0 turboL petrol |
| Production Years | 2011–2018 |
| Plug type | iridium |
| Thread | M14x1.25 |
| Reach | 26.5 mm |
| Hex size | 16 mm |
| Electrode gap | 0.7 mm |
| Heat range | 7 |
Compatible Spark Plugs
| Brand | Part Number | Type |
|---|---|---|
| NGK | NGK ILZKBR7B8DG | OE supplier |
| Bosch | Bosch 0242230506 | OE supplier |
| Denso | Denso SK20PR11 | OE supplier |
| Champion | Champion RG59PYP4 | 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 N20B20
- Use the correct plug type — the N20B20 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 M14x1.25 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 BMW 3 Series F30 N20B20?
NGK NGK ILZKBR7B8DG, Bosch Bosch 0242230506, Denso Denso SK20PR11. All three are OE suppliers and guarantee compatibility with this engine.
How often should spark plugs be replaced on BMW 3 Series F30?
Every 60 000 km or 4 years, whichever comes first. Iridium plugs (NGK ILZKBR7B8DG) have a longer service life compared to standard nickel plugs.
Can I fit a different type of spark plug in the N20B20?
Upgrading to iridium or platinum is acceptable and gives a slight improvement in cold starts. Do not change the heat range (7) — an incorrect heat range can cause pre-ignition or fouling.
Where to Buy