How much would this cost me to fix? And is it something urgent to fix. I also have wind noise on my mirror driver side? Does this problem ever go away ? :(

BMW High Performance Full synthetic 5w-30.

Recently purchased 2011 BMW 328ixdrive & the owners manual doesn't show a maintenance schedule. I've heard it's
built into the computer system" & it will notify me when service is needed or something needs repair. I didn't buy this at a BMW dealer & the person showing me how to use the controls didn't know anything so I still don't how to use the radio &/or how to check for service issues. Do you know the maintenance schedule for this vehicle? I know I need to find someone to show me how to use all controls & the BMW Owners Manual didn't help. Thanks.

Could this be a fuse ? is this a known problem ?

One of the MANY problems my car has is that I keep getting a triangle with a snowflake a short time after I'm driving my car. I do not have my air-conditioner on so what can be causing it?

I am having a few other, what I assume to be, "electrical" problems. My trunk doesn't stay latched closed and my passenger door has opened while driving down the road at 45 mph.

I just bought this car on Sept. 23rd and it has been in the shop five times already.

oil capacity of 328i x drive