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The association published this week, and said that problems could extend not only to Renault-branded cars, but also to those with the brand names Dacia, Mercedes, or Nissan.

The cars concerned were manufactured by Renault between the end of 2012 and mid-2016, and the consumer association said that they all have a tendency to 鈥渃onsume too much oil鈥�.

This could lead to 鈥渄amage of the exhaust valves鈥� and 鈥渆ngine failure鈥�, it said, and estimated that the problem could cost vehicle owners up to 鈧�10,000 each.

In a press release this week, it said: 鈥淯FC-Que Choisir alerts consumer owners of the vehicles Renault, Dacia, Nissan and Mercedes, with a petrol engine of the 1.2 TCe and 1.2 DI-t series Euro 5 to type H5 - of a serious defect that could affect their vehicle.鈥�

, the group identified all models of car that it said were concerned, and offered further advice on what to do if you believe your car could be affected - including taking it to a branded garage for a service.

The four other brands could also be involved due to their manufacturing links with Renault, UFC-Choisir said. Dacia is a subsidiary of Renault, and Nissan is its Japanese partner. There are also links between the French car giant and Mercedes parent company Daimler.

UFC-Que Choisir a 鈥渄eafening silence鈥� in responding to the issue, despite - the association said - its sending of an internal notice on the problem to the brand鈥檚 garages in 2018.

Yet, a release from Renault to the Agence France-Presse denied that it had received any notice from the consumer group in 2018 or since.

The release : 鈥淎ll of our vehicles with a TCe A.2 motor are not affected by this issue. In fact, over-consumption of motor oil can come from different causes - lubricants, user conditions鈥︹��

It reminded customers that 鈥渃ompliance with the [Renault] maintenance programme is required for any car service by a commercial partner [garage]鈥�.