I am taking my E53 to the dealer on Tuesday due to clicking noise in my steering when you turn the steeering wheel left to right on a standstill.
Just a couple of newbie questionssorry for the ignorance)
1) Where is the Power Steering fluid reservoir located?
2) Is the microfilter the same as cabin air filter?
BTW question number 2 has nothing to do with #1 just curious what its for.

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03 E53 (retired)
07 E70 3.0
07 335i....300hp
05 330ci ZHP