The M engine is an overhead camshaft engine developed jointly with Nissan, who refer to it as the MR engine. Two Diesel versions are in use at Renault as of the mid-2000s, although the petrol versions already launched by Nissan will almost certainly be used as well.
- M9R: 1,995 cc, bore 84mm, stroke 90mm (diesel engine used in Nissan Qashqai, Renault Mégane, Scénic, Laguna, Vel Satis, Koleos and Espace; launched early 2005)
- M9T: 2,298 cc, bore 85mm, stroke 101,3mm (diesel engine used in Master and other vans, launched 2010, Nissan Navara D23 (YS23DDT/T) from 2014)
- M4R: 1,997cc (petrol engine used on Renault Clio III, Laguna III, Megane III, Latitude and Fluence; launched November 2006)
- M5M: 1,618cc (petrol engine used on Renault Clio RS, Renault Talisman, Renault Megane IV, Renault Kadjar)
- M5R: 1,997cc (petrol engine used on Renault Koleos II)
- M5P: 1,797cc (petrol engine used on Alpine A110 (2017), Renault Espace V, and Megane IV RS280)
