N54B30 engine
The N54B30 engine is fitted to 2 generation(s): BMW 7 Series, BMW X6.
Common problems and what to check
Engine: BMW N54/N55 (3.0 Turbo)
- oil leaks from the filter housing and heat exchanger
- wastegate rattle
- electric water pump failure
- on the N54 — injectors and high-pressure fuel pump
What to check when buying: oil traces; boost and water pump errors.
Tip: Demanding in terms of maintenance.