In Reply to: Re: Power Steering Fluid Level Leak--Please Help posted by Casey on March 06, 2000 at 20:39:31:
The 2 usual suspects are the high pressure hose going to the power steering gearbox from the pump, and another hose at the pump that's mounted on the top of the pump ,and is of course very hard to change out. Is this a 750il or the easier 735il. Makes a big difference on servicing.
Spray off the affected area with Dawn dishwashing soap[or similar stuff] and clean everything up. With most leaks in this area that are on the high pressure side, you'll only need about 20 minutes of driving or so to spot any weepage. Your nose will also tell you that you're leaking, as the Pentosin fluid is pretty smelly, esp. if it's getting onto the exhaust manifold like it loves to do with the 12 cylinder motors.
Gearboxes can leak too, and the bottom output seal is usually the culprit. Somtimes the seal at the input shaft/coupling leaks, but you'll need to spot all the leaks to make a fair accessment of the work needed.