Just got my 159 back from the garage and noticed a whining noise coming from the steering wheel that wasnt there before it went in. I opened up the bonnet and checked the fluid and its dark brown. Correct me if im wrong but shouldnt it be red. there seems to be spillage of brake fluid in the engine bay. My guess is someone put water in the steering pump fluid reservoir thinking it was for water. My question is how do i get it out and how much can the steering pump fluid reservoir hold from zero. 500ml?