B58
B58 engine guide: 340i, 440i, and M440i petrol sixes
The B58 turbo petrol six, and why it is not an N55 in a newer car.
Also searched as b58 ingine, b58b30.
What this guide covers
The B58 is the turbo petrol six in 340i, 440i, M440i, and later 540i cars. It followed the N55 and is not a substitute for it.
The listing shows the ancillaries still fitted. A bare long block is not what these pages sell unless they say so.
Fitment
F30 340i, F32 440i, and G22 M440i do not share every bracket and sump. Buy the chassis you are repairing.
What the workshop checks
Oil leaks at the filter housing and the turbo are the usual questions. The inspection of the listed unit is the answer that counts.
How to choose a listing
Open the B58 page and match the year in the product title to the car.
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 b58 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.
