Change Car Spark Plugs BMW 5-Series

Change Car Spark Plugs

Easy 0h30–3h30 ~50–350£
Estimated time 0h30–3h30
Estimated labour cost ~50–350£
Difficulty Easy
Vehicles
5-Series 1987-1997 6
  • 520i Petrol (M20B20M)
  • 525i Petrol (M20B25M)
  • 525i, -ix Petrol (M50B25)
  • 530i Petrol (M30B30M)
  • 535i Petrol (M30B35M)
  • 535i Petrol (M30B35M)
5-Series 1996-2004 14
  • 520i Petrol (M52B20TU (206S4))
  • 520i, -LPG LPG,Petrol (M52B20 (206S3))
  • 520i, -LPG LPG,Petrol (M52B20TU (206S4))
  • 520i, -LPG LPG,Petrol (M54B22 (226S1))
  • 523i, -LPG LPG,Petrol (M52B25 (256S3))
  • 523i, -LPG LPG,Petrol (M52B25TU (256S4))
  • 525i, -LPG LPG,Petrol (M54B25 (256S5))
  • 528i, -LPG LPG,Petrol (M52B28 (286S1))
  • 528i, -LPG LPG,Petrol (M52B28TU (286S2))
  • 530i, -LPG LPG,Petrol (M54B30 (306S3))
  • 535i, -LPG LPG,Petrol (M62B35 (358S1))
  • 535i, -LPG LPG,Petrol (M62B35TU (358S2))
  • 540i, -LPG LPG,Petrol (M62B44 (448S1))
  • M5 Petrol (S62B50 (508S1))
5-Series 2003-2011 16
  • 520i (120/125 kW) Petrol (N43B20A)
  • 520i Petrol (M54B22)
  • 523i Petrol (N52B25A)
  • 523i, -LPG LPG,Petrol (N52B25A)
  • 523i, -LPG LPG,Petrol (N53B25A)
  • 525i, -LPG LPG,Petrol (M54B25)
  • 525i, Xi LPG,Petrol (N52B25A)
  • 525i, Xi Petrol (N53B30A)
  • 530i, -LPG LPG,Petrol (M54B30)
  • 530i, Xi LPG,Petrol (N52B30A)
  • 530i, Xi Petrol (N52B30A)
  • 530i, Xi Petrol (N53B30A)
  • 540i, -LPG LPG,Petrol (N62B40A)
  • 545i, -LPG LPG,Petrol (N62B44A)
  • 550i, -LPG LPG,Petrol (N62B48B)
  • M5, -LPG LPG,Petrol (S85B50A)
5-Series 2009-2017 18
  • 520i Petrol (N20B16A)
  • 520i Petrol (N20B20A)
  • 520i Petrol (N20B20B)
  • 520i Petrol (N20B20D)
  • 523i Petrol (N52B25A)
  • 523i Petrol (N53B30A)
  • 528i Petrol (N52B30A)
  • 528i Petrol (N53B30A)
  • 528i, -xDrive Petrol (N20B20A)
  • 530i Petrol (N52B30A)
  • 530i Petrol (N53B30A)
  • 535i, -xDrive M Performance Petrol (N55B30A)
  • 535i, -xDrive Petrol (N55B30A)
  • 550i, -xDrive Petrol (N63B44A)
  • 550i, -xDrive Petrol (N63B44B)
  • M5 30 Jahre Petrol (S63B44B)
  • M5 Petrol (S63B44B)
  • M5 Petrol (S63B44B)
5-Series 2017-2025 18
  • 520e Electricity,Petrol (B48B20A+GC1)
  • 520i M Performance Petrol (B48B20A)
  • 520i Petrol (B48B16A)
  • 520i Petrol (B48B20A)
  • 520i Petrol (B48B20A)
  • 520i Petrol (B48B20B)
  • 520i Petrol (B48B20B)
  • 530e iPerformance Electricity,Petrol (B48B20A+GC1)
  • 530e, -xDrive Electricity,Petrol (B48B20A+GC1)
  • 530i, -xDrive Petrol (B48B20B)
  • 540i xDrive Petrol (B58B30C)
  • 540i, -xDrive M Performance Petrol (B58B30A)
  • 540i, -xDrive Petrol (B58B30A)
  • 545e, -xDrive Petrol (B58B30C+GC1)
  • M5 Competition Petrol (S63B44B)
  • M5 Petrol (S63B44B)
  • M550i xDrive Petrol (N63B44C)
  • M550i xDrive Petrol (N63B44D)

What is the role of BMW 5-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 5-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 5-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 5-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.

View all compatible products →
View your 5-Series maintenance plan (keep the 5-Series token) →

6 models covered

Model Year Range Engines covered Fuel
5-Series 1981-1988 1981-1988 518 Petrol (M10B18), 518i Petrol (M10B18), 520i Petrol (M20B20), 520i Petrol (M20B20), 524td Diesel (M21D24), 525e Petrol (M20B27), 525i Petrol (M30B25), 528i Petrol (M30B28), 535i Petrol (M30B34), M5 Petrol (S38B35) Diesel, Petrol
5-Series 1987-1997 1987-1997 520i Petrol (M20B20M), 525i Petrol (M20B25M), 525i, -ix Petrol (M50B25), 530i Petrol (M30B30M), 535i Petrol (M30B35M), 535i Petrol (M30B35M) Petrol
5-Series 1996-2004 1996-2004 520d Diesel (M47D20 (204D1)), 520i Petrol (M52B20TU (206S4)), 520i, -LPG LPG,Petrol (M52B20 (206S3)), 520i, -LPG LPG,Petrol (M52B20TU (206S4)), 520i, -LPG LPG,Petrol (M54B22 (226S1)), 523i, -LPG LPG,Petrol (M52B25 (256S3)), 523i, -LPG LPG,Petrol (M52B25TU (256S4)), 525d Diesel (… Diesel, LPG, Petrol
5-Series 2003-2011 2003-2011 520d Diesel (M47D20T2), 520d Diesel (N47D20A), 520d Diesel (N47D20C), 520i (120/125 kW) Petrol (N43B20A), 520i Petrol (M54B22), 520i Petrol (N46B20B), 523i Petrol (N52B25A), 523i, -LPG LPG,Petrol (N52B25A), 523i, -LPG LPG,Petrol (N53B25A), 525d Diesel (M57D25TU), 525d Diesel (M5… Diesel, LPG, Petrol
5-Series 2009-2017 2009-2017 518d Diesel (B47D20A), 518d Diesel (N47D20C), 520d Diesel (B47D20A), 520d Diesel (N47D20C), 520d, -xDrive Diesel (N47D20C), 520d, -xDrive M Performance Diesel (B47D20A), 520d, -xDrive M Performance Diesel (N47D20C), 520d,-xDrive Diesel (B47D20A), 520i Petrol (N20B16A), 520i Petr… Diesel, Petrol
5-Series 2017-2025 2017-2025 518d Diesel (B47D20B), 518d, -mHev 48V (MHEV),Diesel (B47D20B), 520d, -mHev, -xDrive 48V (MHEV),Diesel (B47D20B+JA1), 520d, -mHev, -xDrive 48V (MHEV),Diesel (B47D20B+JA1), 520d, -xDrive Diesel (B47D20A), 520d, -xDrive Diesel (B47D20B), 520e Electricity,Petrol (B48B20A+GC1), 520i… 48V (MHEV), Diesel, Electricity, Petrol

Other repair guides

Change Car Accessory Belt Kit

Change Car Accessory Belt Kit

Easy 0h30–3h00
Change Car Air Filter

Change Car Air Filter

Very easy 0h30–1h30
Change Car Battery

Change Car Battery

Very easy 0h30–0h45
Change Car Cabin Filter

Change Car Cabin Filter

Very easy 0h30–0h45
Change Car Clutch

Change Car Clutch

Technical 5h00–10h00
Change Car Front Brake Discs and Pads

Change Car Front Brake Discs and Pads

Easy 1h30–17h00
Change Car Front Brake Pads

Change Car Front Brake Pads

Easy 1h00–12h00
Change Car Fuel Filter

Change Car Fuel Filter

Easy 0h30–2h30
Change Car Glow Plugs

Change Car Glow Plugs

Intermediate 1h00–6h00
Change Car Handbrake Cable

Change Car Handbrake Cable

Very easy 0h30–0h30
Change Car Oil Filter

Change Car Oil Filter

Easy 0h30–8h00
Change Car Particulate Filter (DPF)

Change Car Particulate Filter (DPF)

Easy 0h30–3h00
Change Car Rear Silencer

Change Car Rear Silencer

Easy 0h45–2h30
Change Car Shock Absorbers

Change Car Shock Absorbers

Easy 2h00–5h00
Change Car Timing Belt Kit

Change Car Timing Belt Kit

Very technical 4h00
Change Car Turbo

Change Car Turbo

Very technical 2h00–31h00
Change Car Water Pump

Change Car Water Pump

Easy 1h00–6h00
View the service schedule for your 5-Series →