Change Car Spark Plugs BMW 6-Series
Change Car Spark Plugs
| Estimated time | 1h30–2h30 |
|---|---|
| Estimated labour cost | ~150–250£ |
| Difficulty | Easy |
| Vehicles |
6-Series 2003-2011 5
6-Series 2011-2018 6
|
What is the role of BMW 6-Series spark plugs?
The spark plug generates a spark at the precise moment needed to ignite the air/fuel mixture in the combustion chamber of petrol (or LPG) engines. The engine management system controls ignition timing.
When should you change your BMW 6-Series spark plugs?
Manufacturers provide replacement recommendations; refer to your vehicle maintenance booklet. Generally replace every 60,000 km (45,000 km for severe use). Some vehicles with long-life plugs (titanium, platinum, iridium) can go 100,000–150,000 km.
How do I know if I need to change my BMW 6-Series spark plugs?
Via the EOBD system (mandatory since 2001 on petrol cars), faulty spark plugs will trigger fault codes, typically P0301–P0304 (misfire, cylinders 1–4). Symptoms include: difficulty starting, misfires, reduced engine power, increased fuel consumption.
Is it difficult to change BMW 6-Series spark plugs?
Difficulty level 2/5: technically easy but requires specific tools (spark plug wrench, torque wrench). Key points: wait for cold engine, clean plug well with compressed air before removal, never use a dropped plug, do not grease threads, hand-tighten then torque to specification.
2 models covered
| Model | Year Range | Engines covered | Fuel |
|---|---|---|---|
| 6-Series 2003-2011 | 2003-2011 | 630i Petrol (N53B30A), 630i, -LPG LPG,Petrol (N52B30A), 635d Diesel (M57D30), 645i Petrol (N62B44A), 650i, -LPG LPG,Petrol (N62B48B), M6 Petrol (S85B50A) | Diesel, LPG, Petrol |
| 6-Series 2011-2018 | 2011-2018 | 640d, -xDrive Diesel (N57D30B), 640i, -xDrive Petrol (N55B30A), 650i, -xDrive Petrol (N63B44A), 650i, -xDrive Petrol (N63B44B), M6 Competition Petrol (S63B44B), M6 Petrol (S63B44B), M6 Petrol (S63B44B) | Diesel, Petrol |
