[.::Demon::.]

После замены там масла нужно прокачивать AYC для устранения воздуха из системы.
Я вот нашел три способа прокачки и еще один под сомнением (проверю сегодня)

1. Официальный из сервис мануала митцы, нужен MUT II сканер

BLEEDING
1. Lift up the vehicle.
2. Connect the MUT-II to the 16-pin diagnosis connector.
Caution
Before connecting or disconnecting the MUT-II,
always turn off the ignition switch.
3. Turn on the ignition switch.
4. Operate the MUT-II (Item No.10) to activate the hydraulic
unit forcibly.
NOTE
(1) The forced activation (air bleeding mode) will be
automatically canceled after 5 minutes operation. It
can also be canceled forcibly by operating the clear
key on the MUT-II.
(2) While this function is being disabled by the fail-safe
function, the forced activation of the hydraulic unit
can not be executed.
5. Remove the cap of the left bleeder screw on the torque
transfer differential and connect a vinyl hose.
6. Gradually turn the steering wheel clockwise from the
straight-ahead position. At this time, loosen the left bleeder
screw and check that fluid is discharged with air.
7. After air has been completely discharged, tighten the
bleeder screw.
Caution
While the system is being bled of air, add fluid as
necessary to ensure that it is left in the oil reservoir
during the entire procedure.
8. Repeat steps (6) and (7) two to three times until no air
bubbles are recognized in the fluid that comes out. Then,
tighten the bleeder screw to the specified torque.
Tightening torque: 9 Nm
9. Perform steps (5) through (8) for the right bleeder screw.
Note, however, that the steering wheel should be turned
counterclockwise.
10. After the system has been completely bled of air, check
for the fluid level. (Refer to P.27-33.)
Caution
If the system is not completely bled of air, the hydraulic
unit could generate noise, degrading pump durability.

2. Вывешиванием машины

The Correct way to do this is with a MUT II, but it can be done by
putting the car on a ramp so that all 4 wheels are off the ground and
running the car so that the wheels are doing more that 20KPH, this
gets the AYC pump running. Listen to the pump and make sure it is
running.

Now turn the steering wheel fully one way and bleed one side of the
system (put a clear pipe on the bleed nipple on the diff and into a
jar) You'll have to experiment to see which nipple has to be opened
with the steering one way, if it's the correct one fluid will come
out.

Turn the steering the other way and bleed the other nipple, making
sure you keep the reservoir in the boot topped up. Bleed until no
more air comes out of the diff.

If air is left in the system the pump will have a hard job working
and the diff will make sqwarking noises when used!

3.Подключение напрямую к разъемам насоса AYC для его включения (мне так прокачивали в Спортеке)

A few guys have hooked up a gadget to the pressure switch so it just
runs the pump ( i think some poms are selling em on ebay)
this would be wasiest way.

Just jump under car, switch it on, and it starts the pump and you can
bleed...

4. Нашел на форуме openecu.org такой пост

You can bleed the AYC system without any tools (well OK, you do need a wrench to open the bleed nipple)

Just switch the ignition to "On" (with engine off!), and press the accelerator pedal to the floor and hold. this will switch the AYC pump On for a short period of time (2 sec or something like that).