How to Replace a 2011 BMW 328i’s Power Steering Fluid

You can change your 2011 BMW 328i’s power steering fluid by removing the black reservoir cap, pumping out the old fluid, and refilling it with Pentosin’s European power steering fluid.
Written by Andrew Biro
Reviewed by Melanie Reiff
Your 2011 BMW 328i's power steering fluid can be replaced by either pumping out or draining the old fluid from the reservoir and filling it with brand new Pentosin High Performance European power steering fluid. In the 328i, the power steering reservoir has a black cap and is located next to the windshield wiper fluid.
You’ll know it’s time to change your 328i’s power steering fluid if steering starts to become difficult or if the steering wheel starts making a squeaking sound when turned. Replacing the power steering fluid will help make steering smooth and reliable once more by lubricating the various components of the steering system.
If this is your first time changing a BMW’s power steering fluid, don’t fret. The
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How do I replace my 2011 BMW 328i’s power steering fluid?

Fortunately, changing the power steering fluid in your 2011 BMW 328i is a fairly easy and simple procedure—all you have to do is follow these instructions:
  1. Locate the power steering reservoir. The 2011 BMW 328i’s reservoir has a black cap shaped a bit like a cog wheel and can be found next to the windshield wiper fluid.
  2. Remove the cap and insert a fluid pump into the reservoir. A turkey baster or soap bottle pump will work just fine if you don't have a pump designed specifically for this purpose.
  3. Pump the spent fluid out of the reservoir. Use a sealable container to catch the old power steering fluid.
  4. Fill the reservoir with new power steering fluid up to the fill line and replace the cap.
Congratulations! You've now successfully replaced the power steering fluid in your 2011 BMW 328i! For a more thorough replacement, however, you can opt to add in a few extra steps:
  • Disconnect the power steering fluid line.
  • Completely drain the system. If you wiggle your BMW’s steering wheel back and forth a couple of times, you’ll be able to fully drain the power steering fluid from the system.
If you don’t want to get your hands dirty, that’s not a problem—you can just as easily bring your BMW to an auto shop and have the fluid changed there. Let’s take a look at the pros and cons of doing so.

Should I change it myself or take it to a mechanic?

There’s no harm in taking your 2011 BMW 328i to the mechanic for this service if you want to be absolutely certain that the fluid replacement is completed correctly. A mechanic should be able to completely flush out your power steering fluid in less than an hour, and the cost is probably going to be around $125.
However, if you don't mind the manual labor and would like to save some money, go ahead and do the replacement yourself. You won’t have to worry about a costly labor fee, but you'll still need to shell out $15 to $25 for the power steering fluid.
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Which power steering fluid is best for a 2011 BMW 328i?

There are many great options available when choosing a power steering fluid, but we favor Pentosin’s power steering fluid for European vehicles, as it works well with
, Renault, and other popular import brands.
Here are some of our recommended picks:
Power steering fluid
Pentosin High Performance Euro
1 liter
Prestone PSF Max Euro
12 ounces
Peak Full Synthetic Euro
12 ounces
Valvoline Import ATF
1 gallon

When do I need to replace my 2011 BMW 328i’s power steering fluid?

Generally speaking, you should replace the power steering fluid in your BMW 328i every 30,000 miles or every two years, whichever comes first. By doing this, you'll ensure that your steering system runs without a hitch and that the wheel can be turned easily and reliably.
In some circumstances, however, you may need to change your power steering fluid before reaching this interval. It might be time for a replacement if any of the following start to occur:
  • Fluid color changes from clear to yellow
  • Steering becomes difficult or unreliable
  • The reservoir begins leaking fluid
  • Bubbles are forming in your power steering fluid
  • Strange noises can be heard when the steering wheel is turned (screeching, squeaking, etc.)
Remember that using the proper power steering fluid not only makes driving easier but also lengthens the lifespan of your car. Follow suggested maintenance methods to keep your 328i in top condition for many years to come.
MORE: BMW car-buying guide

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You may! If you’re trying to save a little money, change your 2011 BMW 328i’s power steering fluid yourself by removing the black reservoir cap, draining the old fluid, and refilling the reservoir with new power steering fluid.
Generally speaking, you should be changing your 2011 BMW 328i’s power steering fluid every 30,000 miles or two years, whichever comes first—but you may need to replace it sooner if you start experiencing difficulty steering.
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