BMW is recalling more than 156,000 cars and SUVs in the U.S. because the engines can lose power or stall.

The recall covers multiple models from 2010 through 2012. It includes some 128i, 328i, Z4, 135i, 335i, 528i, 535i and 640i cars. Also covered are many X3, X5, and X6 SUVs.

The German automaker says bolts that hold a camshaft housing can loosen and break. That can cause reduced power or stalling, increasing the risk of a crash.

The National Highway Traffic Safety Administration says dealers will replace bolts at no cost to owners. The company expects the recall to start in May.

BMW says another 170,000 vehicles from 2010 through 2012 with inline six-cylinder engines will not be recalled, but will receive an extended warranty due to the problem.