[Fre_535Xd_F11]

Originally Posted by jadnashuanh

Because of the fuel quality (USA diesel has more sulphur in it than in Europe)and emissions differences, the diesel engines are not the same...so, the numbers are somewhat arbitrary.

But the 535d in USA is not a biturbo engine is it? It's just the single turbo engine not?

[jadnashuanh]

Originally Posted by Fre_535Xd_F11

But the 535d in USA is not a biturbo engine is it? It's just the single turbo engine not?

The 535d engine in the USA is a bi-turbo design, IOW, a single turbo with the variable features, not the twin turbo of the 535d sold elsewhere.

It can get confusing when they use the same numbers for different engines/models in different markets.