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  #1  
Old 07-31-2014, 02:49 PM
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Power Steering Fluid

I have a 2009 X5 4.8i and wanted to change the fluid. Anyone know how much the system hold? I see it says chf11s fluid only on the tank, where can I buy this fluid?
Thanks, Sam
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  #2  
Old 08-01-2014, 06:55 AM
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Bump! Also when's a good time to check the power steering fluid, engine hot or engine cold??
Thanks, Sam
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Old 08-01-2014, 02:37 PM
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Haven't seen a PS dipstick on an E70. On earlier models, there were two level lines, full hot and full cold. If there aren't two level lines, there should be an indication as to whether the level indication is for warm or cold fluid.
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Old 08-01-2014, 09:40 PM
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replenishing 1 liter PSF a year is a smart move, this keeps the base numbers(alkalinity) high. This will prevent seal damage due to acidity. Acid plasticizes rubber leading to seal failures.
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Old 08-02-2014, 05:55 PM
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Quote:
Originally Posted by Sam617 View Post
Bump! Also when's a good time to check the power steering fluid, engine hot or engine cold??
Thanks, Sam
Anyone??
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Old 08-02-2014, 06:36 PM
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What is most important is that you cycle it after filling. Turn lock to lock a few times, then check the fluid. If it doesn't have an indication of whether to check it hot or cold, just get it to the centre of the add/full lines.
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Old 08-02-2014, 08:13 PM
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I've seen Pentosin CHF11S fluid at PepBoys, Autozone, or Advanced Auto Parts. Can't remember which one it was though, but I'm sure you can find it locally.
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