Renault Group

Le Mans Plant


usine le mans
The Le Mans industrial site is dedicated to the conception and development of ground linkage systems for the entire Renault Group. Its plant manufactures chassis components for thermic, hybrid and electric vehicles of the Renault, Dacia and partner brands.
  • FOUNDED IN: 1920

  • LEGAL FORM AND CAPITAL OWNERSHIP: S.N.C (a form of partnership) with capital of €15,244,900 fully owned by Renault SAS (France)

  • ACTIVITY: Powertrains, foundry

  • WORKFORCE: 1,782 at December 31, 2023

  • AREA: 69 ha, o/w 28 ha of covered buildings

  • CERTIFICATIONS: ISO 9001, ISO 14001, labels SMR and RHP


Main products


  • Chassis: front and rear axles
  • Components: cradles, arms
  • Casting parts
  • Chassis parts: 1,027,156 units
  • Cast iron foundry: 93,232 tons


Within the various departments and services, a network of pilots and environmental relays is present and ensures that procedures are followed, wastes are sorted, and precautions regarding the use and storage of chemicals are taken.

Environmental and Energy policy (French only)


All of our quality procedures enable us to meet the increasing standards of our customers. Since 2015, Renault Le Mans has been implementing the Alliance Production Way (APW), a production system common to Renault and Nissan, to all the stages of the manufacturing process. With the APW, the employees of Renault Le Mans produce each day, parts and components at the highest level of quality to meet the needs of the site's customers.

Quality policy (French only)

sécurité le mans


All the commitments in terms of health, safety and ergonomics are aimed at providing a safe and motivating working environment for all employees on the site.

HSE policy (French only)


Reducing energy consumption within Renault Group: the Le Mans plant leads by example

Between 2021 and mid-2022, Renault Group succeeded in cutting the energy used by its industrial and tertiary sites in France by nearly 10%. Yet the Group will not stop there, as it seeks to achieve a 14% reduction by 2023. Among the main contributors, the Le Mans plant is a century-old site that has always found ways to reinvent itself in an effort to further tackle the climate crisis, involving all employees from all divisions.

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usine Le Mans Renault Group
Our history
Back to the key dates
  • 1920: creation of the Le Mans plant.
  • 1948: start of the chassis activity in Le Mans.
  • 1999: creation of Auto Châssis International, gathering engineering, manufacturing and marketing resources for chassis parts produced for Renault and other manufacturers.
  • 2003: Sale of the Renault Agriculture business to the company Claas.
  • 2006: reintegration of ACI into Renault's operational management.
  • 2015: Investment of more than €10 million for the modernisation of the machining lines and the automation of flows
  • 2016: production of the 50 millionth rotor at the Foundry.
  • 2019: Start of production of chassis components for the CMFB platform (Clio, Captur) and in particular the Captur hybrid PHEV project; installation of new machining lines ASL (Alliance Standardised Lines).
  • 2020: 100th anniversary of the Renault Le Mans plant.
  • 2021: The Le Mans plant is assigned to supply the chassis for the 9 electrified vehicles in the Renouveau France 2025 plan.
  • 2022: Launch of the ISO 50001 energy certification process, the first step towards carbon neutrality by 2030.

Contact us

ACI Renault Le Mans
15, avenue Pierre Piffault
72086 Le Mans

+ 33 (0)1 76 86 43 43