So let's go over this. this is the full transcript:
http://www.motorsport.com/f1/news/radio ... ue-797513/
Rosberg: “Gearbox problem.”
Engineer: “Driver default 1-0-1, chassis default 0-1, chassis default 0-1.”
Engineer: “Avoid seventh gear, Nico, avoid seventh gear.”
Rosberg: “What does that mean, I have to shift through it?”
Engineer: “Affirm Nico, you need to shift through it. Affirm, you need to shift through it.”
The first 2 messages towards Nico were ok as they were no instructions how to drive, but instructions how to keep the car from breaking down, which is in line with technical directive 014-16 (
http://www.autosport.com/news/report.ph ... les-breach).
However, when Nico asked if he had to shift through it, the following reply was considered driving aid.
In my view, it's very tough call. You could make a case for both standpoints. There are going to be more of such cases in the near future: you are allowed to give messages to keep the car from breaking down, but anything that arguably can be described as instruction how to drive the car is going to result in a penalty. That's a very vague line.