Two test sessions were agreed to take place in Barcelona, only for Pirelli and a handful of teams to request Bahrain or another warmer location for the first running of the new-for-2017 wider tyres.
But despite the new tyres being unveiled in May, teams have not come to an agreement for where testing should take place, something that Wolff is not happy about.
"It shouldn't be like this," he said. "We can't find out in October. We have all been given targets of where we expect the tyres to come in, and to be fair, Pirelli have a variety of opinions on the downforce levels for next year."
"There were [teams] that wanted the regulations to change, that [said] we were scaremongers because we expected the downforce to be coming in on a high level," he added. "Then suddenly we find out and, 'oops!' It's really much more than we expected."
"Then there are the teams that don't really release information, and Pirelli is in the dark about what to expect for next year. It's not a good situation."
Bahrain International Circuit - Winter testing
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