I have a 1999 996 C2 cab and I need to know how to change the power steering fluid. Either a complete or partial way of changing the fluid. Preferably both ways. I have searched youtube but can't find my car where this work has been done. If anyone has done a DIY procedure on their 996 I would very much appreciate help on this job. Thanks in advance.

 

Use a suction devise, like turkey baster to siphon out the fluid in the reservoir, then refill it. This will get the majority of the fluid in the reservoir out, and is what you do before you remove the reservoir for service.

 

I've got a dumb, but related question... (and this applies to other fluid resevoirs on the car)...

Q: If you just empty said resevoir and refill w/ fresh fluid does that new fluid get circulated to the "working parts", or does it just sit in the resevoir??

I've always thought that w/ the exception of coolant overflow tanks, that get some "flow" from heat cycles that fluid in a master cylinder or pwr steering resevoir just "sits there"...

LMK what I am missing.

thx

 

I am pretty certain that there is a power steering pump comes into play here. I saw a guy on youtube do this on another make of car, then run the car for a short time moving the steering back and forth. Then repeating the cycle. Turkey baster in the reservoir, draw out THAT fluid, then top off again with new fluid and repeat the cycle. He did this 12 times and used a full ltr of fluid until the fluid coming out was nice and clean. His was red. Mine will be green. I was thinking thats what I would do, unless there is a better way.

 

Unless you want to crawl under the car and take apart the lines then a quick search on amazon for a fluid transfer pump is your best bet.

 

I was waiting for a DIY on this as well. I was able to ship PS fluid from the US (the special OEM kind) following the label on PS Fluid cap. Where is the reservoir? Or Do I just simply stick a siphon tube when I remove the PS Fluid Cap?

 

It has a cap that says "Hydraulic Fluid only CH11F" or something close to that.

There are those that would complain it isn't a true flush, but I'm not covered in PS fluid.

 

Actually I think the fluid transfer pump is doing the job a turkey baster would do. Its used for transering fluid from one cantainer to another. Now unless it has a very narrow flexible suction line which can get further into the canister and lines, then its not much cop really. I will stick with the Turkey baster method. Thanks to everyone.

 

Hurdi, did you do this, and did you notice any difference? Is there a problem you are trying to correct or just PM?

Cheers,

DS

 

I spoke to some techs about this the other day. Don't bother was their advice.

There's no change interval based on time or miles.

The bulk of the fluid is in the long lines between the pump and the rack and in the rack itself. To remove this risks damaging the pump or rack or introducing air in the system.

I note my 02 Boxster's on its orignal fluid, original steering everything and the car will have been mine 11 years come the 19th of this month and have coverd over 263K miles.

 

INvius....Yes I did use a baster to suck out the fluid, then topped off and ran the car around the block and repeated it 4/5 times until the liquid I was sucking out was green and not black anymore. I did it because the level was a tad low as a PM job. I hadnt even checked the level in at least 15000 miles. If I felt an improvement in the steering it was only in my imagination as there was nothing really wrong with the feel in the first place.

So Macster I did indeed jump the gun. The chances of me creating an air lock in the system I feel is pretty low as the cannister has a breather pipe coming from the side of it. I think when standing, hopefully any bubbles which may have been created would find their way to that pipe and atmosphere..

 

The power steering system will self purge, you cannot get an airlock.