And therefore uses an aluminium engine block ( instead of the magnesium alloy used by the N53 ) .
And therefore has a capacity of 2,979 cc ( 182 cu in ) and does not have variable valve lift ( called valvetronic by BMW ) .
and therefore uses an aluminium engine block ( instead of the magnesium alloy used by the N53 ) and has a capacity of 2,979 cc ( 182 cu in ) and does not have variable valve lift ( called valvetronic by BMW ) .