startup fault

I've only been taking the car for a drive in the late afternoon, it's the first start of the day and I've noticed a whistle, doesn't sound like a belt. It's after a gentle 200m drive down the street to the junction. After the car has been parked up for an hour while I do some shopping or go...

I have had my C220 for 3 years now it's an early 2012 model and normally a dream to drive. I've had an intermittent issue on start-up where all of the safety/warning systems show a fault. Vehicle locks in park with no function on wipers, indicators, radio, internal lights. Engine fan is...