Faulty injectors on the N47T and N57T diesels

Engine / equipment

N47T 2.0 and N57T 3.0 diesel (versions from about 2014)

Period mentioned

From about 2014; in the US, model years 2015 to 2017

Symptoms

The engine runs rough or hesitates when accelerating (jerking), sometimes with the engine warning light on.

Possible cause described

According to BMW, one or more injectors fail and the ECU has to correct their injection time too much. BMW of North America extended the injector warranty to 10 years or 120,000 miles on the 328d, 535d, X5 35d and 740Ld of those years.

Check for the garage

At the garage: read the engine fault memory (DDE). BMW’s codes for this fault are the zero-quantity adaptation codes of each cylinder with the correction too high, such as 24BB00 (cylinder 1) or 24BF00 (cylinder 2). The failing injector is then replaced and coded into the ECU.

Cost cited in the source

No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database