Subject: LAD elimination info Author: shogun (moderator) : member since March, 2004 : 14070 posts Posted on: 2007-09-30 03:35:44

In case you want to eliminate the LAD system on your car, you can buy a self levelling eliminination kit
from bavauto.com
The most important that the fluid circulates to the back and back to engine room so that the dual pump for power steering and LAD does not get damaged.
Bavauto sells an expensive self levelling elimination kit for almost $ 200.00, but it is basically the same to DIY as shown below. Just close the outlet to the bombs with a bolt. The regulating valve has an overpressure valve which then opens and let's the fluid return to the reservoir in engine room.
Actually no need to buy that set.
In my personal opinion I would by-pass the regulating valve and connect feed and return line with a U-pipe before the regulating valve.
By this you avoid problems of malfunction of the expensive regulating valve and another possible point of leaks.
You could remove the bombs, the regulating valve too and just make a U-pipe as connection for feed and discharge/return. This U-pipe you can make from a piece of brake pipe and use also the connections.

Here pics from the German E34 Forum where someone eliminated the LAD on his 530 V8 and made a U-turn pipe just under the left side front fender where these pipes go into the engine room, feed and return line.
see pics here

Just make sure you do not cut by mistake a brake line, because the also are there under the fender along with the LAD lines.

The warning switch can be removed but is not a must. It is sufficient to remove the wire plug there from the switch. Otherwise you always get a LAD warning in the check control.
To avoid this, connect wire 1 and 3 together. By this the switch is dead/eliminated. The warning switch sits at the rear axle on the right (passenger side).

For connection of the feed line with the return line you can make a U-piece from BMW brake pipe # 34406755697, which is approx 30-40 cm long.

That is one way to eliminate it, or do it as shown on the bavauto site.

I personally like LAD and will keep it, but in case you want to eliminate seeping LAD shocks and want to switch to cheaper shocks, these are possible solutions.

E32 750iL 11/88, E32 750iL Highline 03/90
7 series Tech tips
http://tinyurl.com/3486c

• LAD elimination info (url) - shogun 2007-09-30 03:35:44 (953 views)
  • I am still trying to decide what to do.... - goodtohave 2007-09-30 19:16:30 (115 views)
    • I persoanlly would keep the LAD (url) - shogun 2007-09-30 22:17:13 (139 views)