hi guys,

recently my car started to have some troubles with the steering (weird sensation when taking turns), and now there´s a little noise when taking sharp turns...i decided to take a look at the power steering level (without engine running, but it just had...) it´s way too low.
so, i bought this stuff, which is supposed to be a hydraulics fluid for brakes, power steering etc.
could i just chuck it in with what´s there already? or should i go to the volvo guy and have him tell me what to put in?

cheers

pieter

 

V70's require full synthetic power steering fluid.

 

I saw your post. I have an 07 v70 geartronic. I topped it up with STP power steering fluid. It doesnt saw whether its fully synthetic. What you think??

 

Depends on the model year. Pieter you going to tell us? inmcd, I'd have concerns with what you did as I think your model requires the synthetic. I think Pentosin 11S is what you should have used. I just flushed my system and it's pretty easy to do. A search of this sight or others should give you the process.

Jerry

 

Modern technological development has brought up a great improvement to our daily life. For example, the presence of vehicle, especially the so-called family car, provides us a comfortable, convenient daily life. In addition, more and more luxury device, such as the power steering system, which was once an option for high-class vehicle, has now become a standard option for all kind of vehicles.

The power steering works by pumping pressurized fluid into a steering system so as to reduce the steering force needed for turning a vehicle. By the provision of the steering system, the drivers can easily handle the vehicle, especially when park the vehicle in a parking lot.

However, the power steering fluid has to be replaced after a period of usage as the moisture contained within the fluid will deteriorate the physical property of the fluid. As such, the function of the steering system will be negatively influenced.

Conventionally, replacing the used fluid within the steering system is simply conducted by draining out the used fluid from the outlet, and then refilling the new fluid through the inlet. However, this creates a problem as air will be trapped in the steering system when the fresh fluid pours into the steering system. The trapped air will decrease the overall pressure within the system. This will create a dangerous situation as the driver believes that he/she has rotated the steering wheel enough, while the trapped air neutralizes portion of it.
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Maybe I've been thinking too much, but is it possible to do a power steering fluid change the same way one does a transmission fluid change? Using high tech tool such as turkey baster to drain reservoir, refill with fresh fluid, drive XXX miles, repeat, drive XXX miles, repeat again? Everything is buttoned up tight and I'd like it to stay that way. No leaks, no drips, no errors.

What's wrong with this plan? I know something is, but I don't know what. Or does the dirt/water/other contaminant run down towards the calipers through the brake lines so I'd never change the last few feet of the fluid this way? (That's the problem that might occur -- at least the only one I've thought about).

Thanks.

 

I'm sorry, I didn't mean calipers and brake lines. I was thinking of yet another possible project. Doesn't the power steering fluid circulate and therefore get changed (more or less) with this triple drain and refill method?

 

Yes, the transmission fluid is changed out in similar fashion like the "fill and drain" transmission method. I used a mighty Vac to suck out the reservoir best I could, then filled it with fresh. I used Pentosin C11 that I got from FCP Groton. They don't list it on their sight, but give them a call; they have it for a reasonable price (still not cheap). I did mine on scheduled maintenance at 90K miles as the unit was still functioning perfectly.

Remove the return line to the reservoir and plug the exit? I can't remember if you really need to actually plug the exit, as I don't remember doing so myself. Perhaps the return line dumps in at the top of the reservoir? Anyhow, the end of the return line is put into a catch container. No need to start the engine, just jack up the front wheels and turn the wheels back and forth. With each turn, fluid will be expelled. You must be careful to keep the reservoir from running out as this will add air to the system. It seems to me a quart of fluid did it for me, but am not sure. I kept at it until the fluid was a nice clear green. In terms of effort on a scale of 1 to 10, this is a 1 or 2 at most it is that easy!

Jerry