BMW N55 Engine Parts | Maintenance, Repair & Upgrades

The BMW N55 single-turbo inline-6 is one of BMW’s most reliable modern engines, found in dozens of models from 2010 onward. Alpina Motorsports stocks OEM and OEM-spec N55 maintenance parts at Canadian prices: whether you drive a 335i, 435i, 535i, X5 35i, or Z4 35i.

N55 Engine Applications

  • F30/F31 335i (2012–2015)
  • F32/F33/F36 435i (2014–2016)
  • F10/F11 535i (2011–2016)
  • F15/F16 X5 35i / X6 35i (2014–2018)
  • F25/F26 X3 35i / X4 35i
  • E89 Z4 35i/35is

N55 Scheduled Maintenance Parts

  • Oil Filter (OEM 11427566327): Shop N55 OEM oil filter: every 10,000 km with oil change
  • Spark Plugs (NGK SILZKBR8D8S / 12120039634): Shop N55 spark plug set: every 60,000 km
  • Cabin Air Filter: Every 2 years / 30,000 km
  • Air Filter: Every 60,000 km or per condition

N55 Common Repairs

  • Valve Cover Gasket: Classic N55 wear item at 80,000–130,000 km. Signs: oil smell, oil in plug tubes. See our N55 valve cover gasket guide.
  • Oil Filter Housing Gasket: High-frequency repair on N55. See our oil filter housing gasket guide.
  • Electric Water Pump: Fails at 80,000–120,000 km. Replace with thermostat at same time.
  • Charge Pipe: The plastic OEM charge pipe is prone to cracking on tuned N55s. Silicone upgrade is popular.

N55 Maintenance Schedule Quick Reference

  • Oil change: Every 10,000 km (BMW LL-01, 0W-30)
  • Spark plugs: 60,000 km
  • Cabin filter: 2 years / 30,000 km
  • Coolant flush: Every 4 years
  • Brake fluid flush: Every 2 years
  • Walnut blasting (carbon cleaning): 80,000–100,000 km first service

Shop all N55 engine maintenance parts at Alpina Motorsports: ships across Canada, CAD pricing.

N55 vs N54: Parts Differences

The N55 single-turbo replaced the N54 twin-turbo in 2010. While they share some external dimensions, many parts are not interchangeable. The N55 uses a Valvetronic variable valve lift system (the N54 does not), a single mono-scroll turbocharger, and different VANOS solenoids. When ordering parts for your N55, confirm your engine code (not just the model year), to ensure correct fitment. The engine code is on a sticker on the valve cover and the firewall.

N55 Oil Specification

The N55 requires BMW Longlife-01 specification oil: typically 0W-30 or 5W-30 synthetic. BMW LL-01 approval is printed on the oil bottle: do not use oils marked LL-04 (diesel spec) or non-approved viscosities. In Canadian winters, 0W-30 provides better cold-start protection than 5W-30 at temperatures below -20°C. Change interval: 10,000 km or annually, whichever comes first, using a fresh OEM oil filter.

Popular N55 Maintenance Articles

Frequently Asked Questions

Which BMWs use the N55?

The N55 inline-6 appears in the 335i, 435i, 535i, X3/X4 35i, M135i/M235i, and the F87 M2 (non-Competition).

What's the N55 service interval?

Oil and filter every 8,000–10,000 km for driven cars; plugs around 60,000 km: sooner if tuned.

Do you stock OEM part numbers?

Yes. Listings reference the OEM numbers (e.g., 11427953129 oil filter) so you can cross-check your service manual.

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