Niveauregulierungsproblem

[Slex]

Hallo.
Ich habe ein Problem mit Niveauregulierung der Hinterachse. Nach dem Austausch zaydnih Sträucher in die Arme (Ich habe die Fugen an den Buchsen) die Meldung "SUSPN BEGRADIGEN". Ob die Anpassung Positionssensor Hinterachse oder sollte alles selbst erarbeiten? Mir wurde gesagt, dass es durch Diagnosegeräte erforderlich (ICOM, zum Beispiel).
Wird es helfen? Zuvor funktionierte alles perfekt.

[Erich]

Hi Slex, google translate is not that good, better in English, I know you understand English.
The warning you have is that "Suspension levelling", that comes on when the car is overloaded or rear axle tire angle is too much =camber too much.
The self-leveling suspension systems used in the E32 and the E34 Touring are equipped with a camber warning switch. The switch is mounted on the right rear axle support and connected through a rod to the semi-trailing arm.
The function of the switch is to warn the driver of an overload condition or an unsafe driving situation.
If the switch detects a rear wheel camber of -3.5 deg. A signal is sent to the check control module and displayed on the dash.
A time delay of 8 minutes is incorporated to prevent the warning from being displayed while driving through turns.
The E38 does not use the camber warning switch due to the design of the rear suspension.

you can eliminate the warning also:
Removing the "SUSPN LEVELING" warning message
 https://www.youtube.com/watch?v=nwUblJyhPLs

check riding height.
Bentley's has a table for LAD equipped cars as follows:
Wheels Rear ride height
15 in. 522 +/-3 mm (20.55 +/- 0.4 inches)
16 in. 529 +/-3 mm (20.93 +/- 0.1 inches)
17 in. 545 +/-3 mm (21.46 +/- 0.1 inches)

Ride height is measured from the lower edge of the wheel arch to the bottom edge of the wheel rim (not the ground).

It can also be, that the camber switch is disclocated, see my website for adjustment

 Shogun's Repair Guides for BMW Seven Series

If rear end is then very harsh and bumpy, that points to defective accumulators. See my website the video and the cut off bomb for info under upgrades & funstuff.
BMW has a system to measure the bombs (if they still have it for our cars), but for us DIYer there is only one way, disconnect the hose coonection from the bomb and push in a screwdriver, no worries, there is a plastic protection underneath. In case the screwdriver can be push in = the gas diaphram inside is weak , broken or leaks gas = bomb defective.
 http://twrite.org/shogunnew/files/bombecutdiaphram.jpg
The oil pressure reservoirs (2) on each strut incorporate a membrane and are nitrogen gas filled. They are designed to absorb the oil which is expelled from the struts during downward movement, the gas in the reservoirs is compressed and pushes the oil back into the struts during upward movement.

Charging pressure at 20 degree Celsius 23 +/- 0.5 bar
LAD circulating system pump pressure, max pressure at 20 degree C oil temperature >120 bar
Circulating pressure at 20 degree C. oil temperature 20....30 bar
Hydraulic switch - hydraulic control unit:
switching points, high pressure 110 +/- 12 bar
switching points, low pressure 28...34 bar

[Slex]

Thanks for the answer.
Completely disable the system by jumper wires, I will not. I have a new shock absorbers and LAD. So I would like to solve the problem is with the sensor. Since only the issues involved.
Thanks for the information about the measurement of the height of the rear of the car. Try checking.

[Slex]

I measured the distance from the lower edge of the disk to the top of the arch. I mounted wheels 17 ". I hope I understood correctly, a distance measure. More I had not found a place where you can find over 50 centimeters.
I got these figures




I apologize for the quality of the photos. Photographed at night on the phone and flash.

If we follow your instructions, I need to make the suspension more below. However, it is already quite low.

[Erich]

17 in. 545 +/-3 mm
Your car is definitely too high at the rear, maybe even at max possible by the hydraulic system and that is why it is hard.

[Slex]

Maybe you're right. But earlier to replace the silent blocks, the distance from the wheel to the wing was identical. Even slightly higher. This can be seen even in the pictures in my albums.