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BMW is to introduce a starter-alternator stop-start system as pioneered by PSA with Valeo technology in Citroën C3 and C2 models.
Various four- and six-cylinder 1-series, 3-series and 5-series models will use a Bosch-developed system, which promises fuel savings of around five%. It will be the first time an premium brand car manufacturer has offered such a device, and will help BMW reduce average Co2 emissions ratings towards the ACEA-EU 2008 target of 140 g/km.