Question about 2007 BMW 750Li Sedan
The rear suspension on drivers sqeakes a lot , sound like the rubber
ball joints are rubbing against steel
Hard to say, but here is something important to check. Get the rear end up on jack stands (safely), remove the wheel and take a closer look. Check that the LAD high pressure hose that runs from the pressure accumulator (AKA bomb, because it looks like one) to the bottom of the strut, is not rubbing on anything. If it is, get some open ended spanners and slightly loosen, re-position, and re-tighten the hose so that it does not come into contact with anything when it moves (make sure you have some spare pentosin first, or drain the fluid into a clean container for reuse). Sometimes when a mechanic fits these hoses they don't care enough to make sure they're not rubbing anything. It happened to me, but I wasn't lucky enough to hear it first, and it wore through the hose. If this happens, you will lose power steering and the rear suspension will sit down, so you will need a tow truck, about $100 worth of Pentosin 7.1 (you can't use ATF or regular brake fluids), and of course a new hose. The latter two can be ordered from www.bavauto.com. Good luck.
Posted on May 15, 2009
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Posted on Jan 02, 2017
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