Engine difference N57D3 vs N57S / my car is a E70 LCI 40d

[Knubblo]

Dear Forum,

My car is a 40d. Vin number reports N57S engine and 225 kW power. I cannot find this engine spec on the Net. According to BMW:s official pricelist my engine "should be" N57D3 which is 225 kW and 600 Nm. The only N57S which is listed in the price list is the one for 50d which has 280 kW and 740 Nm.

I have searched the Net but unable to find a N57S engine spec sheet for 225 kW. Is my N57S engine the same as the one in 50d but only with lowered power from 280 to 225 kW or is it something different in terms of turbos or other significant technology?

A friend of mine also have the 40d and it's VIN also reports a N57S, 225 kW engine.

We live in Europe.

Kind regards
Knubblo