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TDI 101 Got a simple/basic TDI question? Are you a newbie (new to the forums). Feel free to post your question here.

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Old December 3rd, 2006, 12:46   #1
blkpas
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I've got a 2005 Passat TDI and I just topped off my power steering reservior
with dot 4 brake fluid! Should I sell the car or is there hope or me.

Thanx
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Old December 3rd, 2006, 12:49   #2
Dunno513
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I would only worry if your car stops faster turning left than right.
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Old December 3rd, 2006, 13:24   #3
Acidhead
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The answer is "Dunno". ...Sorry couldn't resist that one. The good news that both fluids are hydraulic oils.
Bad new is the the brake fluid is hi temp/ hi pressure. While the power steering is low pressure /low temp. You really shouldn't mix them. I know that you know that. But try to get the fluid out by opening up one of the lines on the bottom of the reserivor to let the fluid out. Hope this helps.
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Old December 3rd, 2006, 14:45   #4
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Get out the mity vac and suck the reservoir dry, then unhook the hoses down at the p/s pump. With the engine off, turn the wheel lock to lock to drain even more. Fill and repeat a few times with good fluid and I think you'll be there.
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Old December 3rd, 2006, 14:52   #5
greenskeeper
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Quote:
I've got a 2005 Passat TDI and I just topped off my power steering reservior
with dot 4 brake fluid! Should I sell the car or is there hope or me.
My question would be why were you topping off the fluid in the PS or brake (intendend?) systems? Perhaps a leak/trouble brewing?

I haven't touched the PS or brake system in over 8 years on my 98.
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Old December 3rd, 2006, 16:04   #6
tditom
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Quote:
Originally Posted by blkpas
I've got a 2005 Passat TDI and I just topped off my power steering reservior
with dot 4 brake fluid! Should I sell the car or is there hope or me.

Thanx
Selling the car in that condition without disclosing the screw-up would make you a dishonest idiot. Just drain and replace the fluid.
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Old December 3rd, 2006, 16:42   #7
boulevard
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Have you started the vehicle? Is the Brake fluid still in the resvoir or have you pumped it through the entire system? Brake fluid is very damaging to almost any type of rubber. You can soak an O ring in brake fluid and it will swell to 4 times its normal size. I would try to get the brake fluid out of the system as soon as you can. ASAP!! Drain and refill the system several times to attempt to disipate the brake fluid. In my opinion this is not a good thing to have happen. This could get expensive if the seals in the stearing system can not handle brake fluid.
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Old December 3rd, 2006, 20:00   #8
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If it makes you feel any better, I had a friend do this.

He (who will remain nameless) was doing a brake bleeding/power steering fluid change at the same time. He was trying to suck out the PS fluid with a baster and lets say that he tipped the bottle of used brake fluid in the PS reservoir. So, some (don't know how much, it wasn't a lot, maybe a quick glug) brake fluid was mixed in with the PS fluid.

My car, er HIS car has been running fine without any leaking from any PS for 2 years and many miles.
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Old December 3rd, 2006, 20:18   #9
car54
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You obviously want to do work to the car, or you wouldnt have been messing around under the hood in the first place.

The simple answer is, now you will get your wish. I see frequent flushes in your future. I doubt it will cause any damage, but its going to take a lot of flushing to ensure its all out.
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Old December 4th, 2006, 04:45   #10
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Quote:
Originally Posted by boulevard
Have you started the vehicle? Is the Brake fluid still in the resvoir or have you pumped it through the entire system? Brake fluid is very damaging to almost any type of rubber. You can soak an O ring in brake fluid and it will swell to 4 times its normal size. I would try to get the brake fluid out of the system as soon as you can. ASAP!! Drain and refill the system several times to attempt to disipate the brake fluid. In my opinion this is not a good thing to have happen. This could get expensive if the seals in the stearing system can not handle brake fluid.
I must point out the brake system is full of seals as well. are they a different type? The one's i have worked on all seem to be rubber.
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Old December 4th, 2006, 05:14   #11
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Default Brake fluid

Quote:
Originally Posted by bugablue
I must point out the brake system is full of seals as well. are they a different type? The one's i have worked on all seem to be rubber.
The rubber components in the brake system are designed to be brake fluid friendly. Brake fluid is used often by dishonest people to extend the life of a wornout automatic transmission. Automatic transmissions begin to slip because pressure is leaking around the O rings on the clutch packs. When you add brake fluid it swells all the O rings and seals and makes the transmission work,atleast for a little while about 10k miles until the seals are so soft they blowout. Then the trans needs rebuilt for sure.
Brake fluid will also remove paint and absorbs moisture if left in an open container. Don't mix up brake fluid with Hydraulic fluid because they are not the same not even close. Most Hydraulic oil is just 10 weight motor oil with some conditioners added.
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Old December 4th, 2006, 05:20   #12
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You can order liters of Pentosin PS fluid (the VW OEM stuff) from Impex for about $15 each, I think.

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Old December 4th, 2006, 05:59   #13
boulevard
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Default Brake fluid

Checkout this link on fluid contamination, http://www.herguth.com/capabilities/brakeswell.htm
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Old December 4th, 2006, 06:01   #14
boulevard
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It sounds like putting power steering fluid in to your brakes is a whole lot worse than putting brake fluid in you power steering???
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Old December 4th, 2006, 08:09   #15
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Brake fluid mixed with oil will swell the seals and any rubber parts is contacts. I have seen many contaminated brake systems when oil was added to brake system. I would flush the whole system as soon as posible or you will need a new steering rack and pump.
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