Daimler has said that it has filed a request with Russian regulators to take a stake in Kamaz.

"We filed a request with Russian anti-cartel authorities," a Daimler spokesperson told AFP.

However, Daimler appears to be hedging its bets.

"If we decide to acquire a participation in Kamaz, we will have already filed the request, or maybe even obtained the authorisation, " the spokesperosn added.

Daimler has said it will decide by the end of the year whether to invest in Russia, a fast-growing market the German group feels is key to its heavy truck activities.

Last month Daimler sources said it is now only planning to take a 10% stake in the business.

Earlier in November, just-auto reported that there had been a cooling off in the Daimler board for the deal to acquire a 42% holding, with rumours the deal would be postponed.