Self Levelling Help--525ixT

[GM525]

Hello.
Do you know if I can adjust the ride height on my 93 Touring with L.A.D Self levelling suspension? The back end is very low compared with the front.
Also does anybody have a spare tool tray/back trim panel in grey?
Cheers

[cjones]

Yes you can. The device which is connected to the rear anti roll bar and adjusts the hight was jambed on mine.
94 525ixT

[George M]

yup...10mm box end wrench on the U bolt that connects the LAD reg. valve to the sway bar. Best to pre-mark and adjust with the car running...backed onto ramps.
SAFETY FIRST.
HTH,
George

[shogun]

in English and German with pics.
Look for Niveauregulierung which is the German word for LAD.
There is also a detailed description with nice drawings and wiring diagrams
for the EDC and LAD, all detailed explained for training courses for BMW technicians. It's in German language, but a lot of drawings and function diagrams.
Hope that helps.

[George M]

Erich...Thanks for your tireless effort for all the great links and information you provide. Say hello to Mike for me as well.
Best Regards in the New Year,
George

[GM525]

in English and German with pics.
Look for Niveauregulierung which is the German word for LAD.
There is also a detailed description with nice drawings and wiring diagrams
for the EDC and LAD, all detailed explained for training courses for BMW technicians. It's in German language, but a lot of drawings and function diagrams.
Hope that helps.

Got under 525ixT and adjusted the easy way.Give it good roadtest.Think Ive overdone it a bit.Looks like an Audi Allroader.Need to tweak it down a bit.The values given in Bently Man when measured against car seem too low.Do you think it would be okay to have it slightly higher than spec say about 15-20mm or would this cause damage due to constant fluid pressure?
Is there a value for front ride height check? Mine seems a lot higher than other Tourings.
Thanks for your help and excellent info

[shogun]

there cannot be an overpressure.
Overpressure valve opens at 130 bar.

Front height has no influence by LAD, as it only works on the rear suspension.
EDC is a different thing, works on front and rear, comfort and sports, but that is a complete different system and is electric whereas the LAD works with a hydraulic system.
That's all I know from the E32, guess E34 is the same.

Do not know the normal height of an E34. But that should be known by some people here.

[Bill R.]

Flange on the wheel , at the center of the wheel to the bottom edge of the lip on the fender is 611mm +-10mm on the 525ix at the front, at the rear on the 525ixtouring its 535mm +-10mm. These figures are with the stock 16 inch wheels on the touring ix...

[lesage]

1992 525iXat (UK): now that the cars got nice new front struts, handling has improved immeasurably (goes over speed bumps without the suspension crashing. However, have noticed for a while that theres a tendency for it to eject some pentosin from the top of the reservoir. Is this fairly common? Or an indication of simply the system going through the limits of travel--perhaps over these same speed bumps? Or should I suspect the accumulators? As I said, the ride now seems fine...no bouncing, no hard 'limit-reached' feeling at the back that I can notice

[shogun]

Go once more back to my page and the drawings there. In my opinion there cannot be such a pressure coming from the bombs, because the regulating valve is in between. Maybe something there might be wrong.
Here is a schematic drawing made by IceTea from the roadfly E32 board showing the system he made for a 750 E32, when he was looking for bleeding points or flushing points. Maybe that helps too