Brought to shop and told I needed new starter but mechanic didn't want to do it since it was huge job?

Why does my car make a high pitched whine nosie

It looks like their is some airintake under the engine on the drivers side. What is this

On a cold night i started my car and the radio didn't work at all the next day it worked but then cut off.

I cant seem to find it so i put the transmission oil where the power steering is , should I do that or not?

I was driving it and all of a sudden there is no reverse.

i want to know what the problem with my 2001 325i bmw there is smoke coming out the tail pipe when i start the car some days

The lifter nose doesn't happen all the time and goes away quickly. Could the oil pump be a problem, if not what else should I look at?

My mechanic informed me that I've got a minor leak in the area of my rear differential. I wonder if I need to replace the rear differential or should have the reseal job done instead?

Replaced sensor, air boots

Sputters out