BMW has ordered 720,000 cars to be returned to their dealerships due to an electrical problem, which American road safety organisation the National Highway Traffic Safety Administration (NHTSA) says, "Increases the risk of a crash".
The cars being recalled are all variants of the 3-series built between 2007 and 2011, the 1-series coupe and convertible from models years 2008 to 2012, the Z4 vehicles from 2009 to 2011 and some 1,800 Canadian X1 models from 2012.
Affected cars could suddenly lose electrical power and stall due to degrading connectors to the battery.
The US NHTSA said: "Over time, the high current flow and heat from electrical resistance may lead to a breakage of the connection, and a loss of electrical power to the vehicle."
The German manufacturer said the problem had already caused one minor crash in Canada, but no one was injured.
The recall, however, doesn't affect cars in Britain or the rest of Europe, with a BMW UK spokesperson stating: "The part causing the problem is not offered in the UK, so there are no UK cars affected by the recall".
As well as the 505,000 cars in the US and 65,000 in Canada, the recall also includes some 100,000 cars in Japan and 50,000 in South Africa.
The feature is specifically for markets in which temperatures are potentially higher such as the USA and South Africa.