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Re: 1989 750IL Power Steering Fluid Leak (archive)

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Posted by Fred on December 21, 1999 at 10:46:58:

In Reply to: 1989 750IL Power Steering Fluid Leak posted by Bryan Garner on December 20, 1999 at 11:50:51:

:First, it sounds like it's a Pentosin leak since that level is low. If its oily/sticky, its Pentosin. If it smells sweet, it's antifreeze. Yes, Pentosin is green.

The item you described near the fuse box sounds like the hydraulic regulator. Note that on your car, the "bomb" is mounted remotely from the regulator, low in the left front of the car

Try looking under the hood with the engine running while someone operates the steering and brakes. If it's a high pressure leak, there's a good chance you'll see it spurting. My leaky high pressure hose looked like a squirt-gun when the steering wheel was turned.

I understand that the most common source of leaks is the high pressure hose from the hydraulic pump to the regulator. That was my problem. Hose cost about $235 from the dealer and about $90 from Eurasian. Guess where I got mine. It was a real bear to install. I can give a few time and effort saving tips that I learned the hard way. Don't even start unless you have a 19mm crows-foot.

'89 750il

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