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.