Re: A few E32 735 questions (archive)

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In Reply to: A few E32 735 questions posted by Craig Homann on February 25, 2001 at 00:46:02:

1) The rear subframe bushings (rear axle carrier bushings) can be replaced without dropping the rear axle or subframe. You can either cut them out with a reciprocating saw, or fabricate a removal tool. I choose the later since I was afraid of inflicting permanent damage. If you can replace your own shocks, you can replace the rear axle carrier bushings.

2)Idle problems can be caused by any number of things but the first thing I would check is the idle speed stabilizer. It is located in the rubber hose between the air flow meter and the throttle body. Remove the unit and spray with carburetor cleaner and see if this improves the idle. If not, remove the electrical connector and test the resistance between the outside two pins of the stabilizer. The value should be around 40 ohms. Next test the resistance between the centre pin and each of the outside pins. The resistance should be around 20 ohms in each case. If the stabilizer fails any of these tests, replace it.

Next on the list of possible idle problems is a vacuum leak. Possible area to examine are cracks in the rubber hose between the air flow meter and the throttle body, intake manifold, rubber o-ring on dipstick, small rubber hose between inlet manifold and fuel pressure regulator.

4) Scrubbing on tires is usually a sign of wheel alignment problems. Unfortunately, the only aligment adjustment on the E32 is toe-in. When you say you have had many alignments, is this from the same place? If so, possibly try another shop and see if there is a difference. Camber and caster can be adjusted through the addition of adjustable upper strut mounts.

Hi, I'm the proud owner of a RHD 735i. Awesome car, but I've got a few niggling problems I need advise about.
1) The rear subframe bushes are stuffed, so I need to replace them. Any idea how? Not covered in my manual, but I cant tell if I need to drop out the whole subframe or not.
2) It seems to run well, but feels a bit unhappy at idle, making the steering wheel vibrate a lot. any ideas?
3) It has the red infa red thing on the vent in the centr of the dash, but i'm not sure about the rest of the remote locking system. it has the alarm though. Is there a control module/reciever for this syatem?
4) It scrubs fron tyres on the outer edges, despit heaps of wheel alignments. Its got new thrust arm bushes, and there is not play in anything else, any ideas?
Thanks in advance for your help everyone.

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