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Discussion Starter #1
Does power steering need replacement like other fluids?
Eg in a 15yr old car? Is there a plug to dump old fluid or a bleed valve?

Whilst changing engine oil on a Peugeot in family I turned by hand both wheels whilst front end on jack stands. There was a noise that sounded like air was in the rack as the fluid moved about. The steering is fine with no noises. The power steering fluid is below minimum by 1cm on level ground. It has gone down to when checked a few yrs ago.

I cannot see any leaks whilst under car.

The manual recommends total fluide DA PR9730.A1
 

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Haynes will probably recommend frequency of changing. But it needs to be OVER the maximum mark and checked regularly (couple of times a year)
 

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Peugeot found that the volume of fluid wasn't enough and released a technical bulletin advising owners to overfill beyond the MAX.
 

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Discussion Starter #5
Found this on a Amazon review

Tip for 407 users who have found your stering pump level low - there is a desig flaw with the pipes on this model. Fill your level to one inch ABOVE maximum and your troubles will be over. You can search to confirm that many have done this - but the bottom line is that over filling stops the return fluid from bubbling when the pump is working hard.

The total fluide DA seems to be recommended for 307 and 407 and has better cold weather performance than others
Peugeot found that the volume of fluid wasn't enough and released a technical bulletin advising owners to overfill beyond the MAX.
 

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Discussion Starter #6
Which models were affected? How many millimeters over max mark on power steering dipstick would you recommend? Thanks
 
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