Der Fehler ist von alleine weggegangen als ich gerade auf dem Weg in die Firma zur Reparatur war, und seit 100 Kilometern nicht mehr aufgetaucht.
Das System arbeitet auch, und laut Nanocom liegt der Druck bei 4-5 bar wenn das Auto geradeaus fährt, und bei 70 bis 90 bar bei zügiger Kurvenfahrt.

Laut Nanocom-Anleitung muss, wenn der Fehler nicht von alleine weggeht, das System wie folgt entlüftet werden:

· Ace System Bleeding: During ACE system maintenance or repair, hydraulic fluid may be
lost from the system and air introduced. If air is present in the primary circuit (pump,
attenuator and PCV) the system will self bleed shortly after starting the engine. The
unwanted air will escape when it reaches the reservoir. When air is in the secondary
circuit (actuators and associated pipe work) it is necessary to perform the System Bleed
procedure using this function. Both actuators are designed to allow oil and air to flow
LUCAS ACE - Diagnostic Capabilities (Outputs)
LUCAS ACE - Diagnostic Capabilities (UTILITY)
freely through them when the piston is in the fully extended position. In this position,
the air will be forced out and allowed to escape to the reservoir. Using the following
procedure, it is possible to bleed the front and then the rear secondary circuits with the
front secondary circuit being bled first, but it is critically important that both the front
and rear actuators are bled independently.
1. The vehicle has to be parked on a 4 post ramp with the handbrake on and in park or
neutral.
2. Verify that the oil reservoir is to the maximum level and that the pump is active and it
generates fluid’s turbulence on the reservoir.
3. Turn off the engine, raise the car at working height and perform OIL BLEEDING STEP 1.
4. Disconnect both stabilizer links on the front axle only. Do not disconnect the stabilizer
links on the rear axles. Free the nut that holds the silent block at the end of the roll bar.
5. Push the stabilizer link on the torsion bar side end up and pull the stabilizer link on the
actuator side down simultaneously to bring the actuator to its maximum extension;
make sure that no pipes or hoses become stretched.
6. For added safety, lower the vehicle to ground height.
7. Stop the STEP 1 function if it is not yet terminated. Turn on the engine and perform the
OIL BLEEDING STEP 2 (it will take about 10 minutes) and keep the reservoir topped if the
oil decreases its level. Once the function is terminated turn off the engine
8. Perform OIL BLEEDING STEP 1 and raise the car at working height and reconnect the
links of the front axels. Stop the STEP 1 function if it is not yet terminated.
9. Disconnect both stabilizer links on the rear axle only. Free the nut that holds the silent
block at the end of the roll bar.
10. For added safety, lower the vehicle to ground height again.
11. Turn on the engine and perform the OIL BLEEDING STEP 2 (it will take about 10 minutes)
and keep the reservoir topped if the oil decreases its level. Once the function is
terminated turn off the engine
12. Raise the car at working height and reconnect the links of the front axels. Perform OIL
BLEEDING STEP 3 for a few seconds.
13. Lower the car and check the level of the oil again.​