N55
N55 engine guide: 335i and 535i turbo petrol
The N55 single-turbo six used in 335i, 535i, and X5 35i cars.
Also searched as n55 ingine, n55b30.
What this guide covers
The N55 is the single-turbo petrol six that replaced the twin-turbo N54 in many 35i cars. It is not a B58, and it is not an N54.
Stock is listed when a unit has been inspected. This guide does not mean every N55 variant is on the shelf today.
Fitment
E90, F30, F10, and E70 installations differ. Name the chassis.
What the workshop checks
The turbo, the charge pipe area, and oil leaks are what workshops look at. The photographs show this engine, not a brochure engine.
How to choose a listing
Match the listing name to the car, then read the price on that page.
Warranty
Eligible engines carry a warranty of up to 12 months after a correct installation by a workshop. The warranty covers eligible internal failure. It does not cover a mismatched fitment, a dry start, the wrong oil, or damage caused after the crate is opened.
Shipping
Door-to-door shipping from Hamburg is a flat 299,00 €. The engine is packed for freight and delivered to the address on the order. A forklift or an engine crane is required at delivery. The shipment is arranged to the destination the buyer provides.
Questions
Does n55 engines include door-to-door delivery?
Yes. Shipping is a flat 299,00 € to the address on the order, from the workshop in Hamburg.
How long is the warranty?
Up to 12 months on eligible internal failure after a correct installation. The warranty page has the full terms.
Are the photographs of the engine being sold?
Yes. Covers and pictures in these guides are workshop photographs of listed engines, not generated pictures.
