Tänak currently sits fourth in the FIA World Rally Championship standings and had targeted his home round this week - a rally he has triumphed in four times - as the perfect opportunity to return to winning ways.
The 35-year-old posted the benchmark time on the opening pass of Thursday morning’s shakedown stage but his car suffered engine troubles at the end of the run. Upon further investigation back in service, M-Sport Ford has confirmed that a replacement engine will need to be fitted before the event starts later today (Thursday).
FIA regulations state that, in the case of engine failure between scrutineering and the first time control, it is permitted to replace the engine. However, a five-minute penalty will be applied by the Clerk of the Course.
"We have no option but to change the engine, which we can do by regulation, but it will mean that we get a penalty before we start the rally," explained team principal Richard Millener. "It's a really frustrating start to the rally, possibly the worst start we could have had, but that's the situation we find ourselves in.