I just bought 3L BMW ATF for power steering but I don't know how to change it.


Please help.

Not sure why you purchased BMW PS fluid, It's just plain ol dexton III ATF that can be purchased at any auto supply store for about $8 a gallon. What you purchased of course will work fine (just cost more).

What I do (the easy way) is simply suck out what I can from the reservoir with a turkey baster and refill each time I change the oil (I just dump the old PS fluid with the oil for recycling). While this only changes about 30% or the fluid each time, it's real easy and done with each oil change, keeps the fluid clean.

The more complete way requires disconnecting hoses. You need to disconnect the return hose, and plug the fitting in the reservoir. Then place the return hose into a container for draining. You can start the engine and keep puring fresh fluid into the reservoir as the old oil drains out the return hose. For a more complete flush you need to turn the week from lock to lock at the same time. It's messy, but can be done.

Not sure why you purchased BMW PS fluid, It's just plain ol dexton III ATF that can be purchased at any auto supply store for about $8 a gallon. What you purchased of course will work fine (just cost more).

What I do (the easy way) is simply suck out what I can from the reservoir with a turkey baster and refill each time I change the oil (I just dump the old PS fluid with the oil for recycling). While this only changes about 30% or the fluid each time, it's real easy and done with each oil change, keeps the fluid clean.

The more complete way requires disconnecting hoses. You need to disconnect the return hose, and plug the fitting in the reservoir. Then place the return hose into a container for draining. You can start the engine and keep puring fresh fluid into the reservoir as the old oil drains out the return hose. For a more complete flush you need to turn the week from lock to lock at the same time. It's messy, but can be done.
I just did it.
Thanks.

any diagrams? where is the reservoir?

The power steering reservoir is mounted on the shock tower in the negine bay. black in color with a star shaped cap. GL

any diagrams? where is the reservoir?

If you don't know where the P/S reservoir is, you'd better learn where your brake reservoir is too. Your neglected brake reservoir is hiding underneath the driver's side cabin air filter assembly.

Both require routine topoff or you could get in an accident or cause unnecessary damage to your car.

There are things under every car hood that EVERYONE should know, including my 18yo daughter. If you don't know where these things are, bad or big $ crap is going to happen someday:

-motor oil filler cap & dipstick
-coolant reservoir
-brake fluid reservoir
-P/S fluid reservoir
-window wash reservoir

What I do (the easy way) is simply suck out what I can from the reservoir with a turkey baster and refill each time I change the oil (I just dump the old PS fluid with the oil for recycling). While this only changes about 30% or the fluid each time, it's real easy and done with each oil change, keeps the fluid clean.


That is what I did on mine, but instead of the turkey baster, I used my (cleaned) top-side oil change pump, which makes the whole process much easier and far cleaner. I did this every day (drain and re-fill with Mobil 1 ATF) for like a whole week every time I got home from work, until I used the complete M1 bottle. By the end, instead of a darker fluid, it was back to being a "reddish" looking fluid (which is what new M1 looks like).

If you don't know where the P/S reservoir is, you'd better learn where your brake reservoir is too. Your neglected brake reservoir is hiding underneath the driver's side cabin air filter assembly.

Both require routine topoff or you could get in an accident or cause unnecessary damage to your car.

There are things under every car hood that EVERYONE should know, including my 18yo daughter. If you don't know where these things are, bad or big $ crap is going to happen someday:

-motor oil filler cap & dipstick
-coolant reservoir
-brake fluid reservoir
-P/S fluid reservoir
-window wash reservoir

thanks for the tip sir. would you happen to know of a DIY write up for both ATF and Brake Fluid Changing?