At presernt I am in holidays in Liguria. I went here with the 164. First turn was from Hamburg to Zürich. After 1 working week in Zürich and picking up my wife at the airport we continued to Italy, just taking some passes (Grimsel, Simplon) instead of queuing in the traffic jam on the Gotthard way. We had a night over near Varese, visiting a friend, before going further to Liguria.
So far it's a quite joyful ride with the 164.
Only a few issues to note: 1st the ABS control lamp lights up most time. Never had it before. So first I was a bit scared because of

"oops, must have something to do with the brake, I guess". But the brakes did still work fine. So no cause to interrupt the run. And the fan of the heating/airco buzzes at high frequency at low speeds (2 to 4 bars in display).
Referring to the buzz of the heating fan: Does any of you know which part it is what I would have to change? Something that's recommanded to visit a scrapyard here in Italy?