C36 ...Noises....

Question: Is it normal to be able to hear the radio antenna mast going up and down? It functions fine but from the driver's seat it is quite a notable whir up and down. Is that just normal or a sign of it wearing out? It's been the same since I bought the vehicle about 5 months ago.
Another noise - my interior blower motor make a loud "ERK!" type noise at start-up on very cold mornings. Lasts for maybe 5-15 seconds, and then it is perfectly fine, silent. It's just at start up, and only if cold. Anyone else get that too?
Thanks!




For the heater motor, mine also does a load whirring noise on start up when cold. It disappears quickly. I have a feeling that a dab of grease in the bearing and a good clean will solve the problem. It did so on my old C240 wagon I had many moons ago....
You could take it apart and lubricate the internals of the antenna, it will thank you by operating smoother.







