Very helpful thread guys. I read over it a few times before I decided to change out the power steering fluid in my 2010 LCI 335d. I used a cheap siphon I bought from a cash and carry and used PENTISON CHF 11S as that is what was engraved into my power steering fluid reservoir. Didn't take long at all to complete and wasn't very messy either. My fluid was already low and I was hearing some odd sort of crunching and rubbing noises as I was parking the car sometimes so I was already to keen to take on this DIY. Thread helped me a bunch with confidence to do so. Also car feels alot smoother turning the wheel and the steering almost feels lighter. Haven't driven it around too much yet but there's definitely been a big change.
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