I have the MZ5 2006.. the crunch comes up beginning of the cold season. This past weeks we have a deep freeze at -27 to -30 celcius. The crunching sound is nowhere to be heard. So I think the crunch happens only at certain range of temperature.
Coldest I have see was -37c whatever that is in farenheight
PA rarely gets below 10*F (-14*C).
How about some snow with that cold weather. We got dumped on with over 40 cm of snow over the weekend..
This is one of those rare winter days when you wish you had either an SUV or a snow blower.
Or a case of beer