Bleeding Gt-r 4wd System

[hossboss]

Hi all. Does anyone know what's involved in 'bleeding' the ATTESA all wheel drive system on an R32 GT-R? Ever heard of them cutting out after 20mins or so?

[Duncan]

when it cuts out, does the 4wd light come on? If so check the LED on the computer under the parcel shelf to find out the error code.

to bleed the 4wd put the rear up on stands, fill the resoviour, turn the ignition to on and crack open the bleeder at the rear of the xfer case. It will self bleed. Once that is done there is another really hard to get to bleed point above the rear driveshaft.

[JAP-JET]

would this be the same way to flush it and the transfer case?

[BK]

The correct way is not to raise the rear. Mate there is a connector inside the drivers kick panel, its usually a white one taped to the loom. You disconnect it with the ignition on and it actually activates the attesa pump. You can leave it disconnected and simply switch the ignition on and off while cracking the transfer case actuator bleed nipple (need two people). That is all that's required, same for R33 GTR. R34 also is the same but connector is under dash.

This is the correct way to bleed the transfer case actuator (attesa fluid).

This is to bleed the attesa fluid which controls your tranfer cases wet multi plate clutch which drives the front shaft. Your transfer case is a whole different lot of oil even though they are both Dexron based fluids.

I use Castrol TQ dexron III in attesa and fully synthetic Castrol transmax Z in tranfer case itself.

Edited May 14, 2009 by BK

[skyline-lemans]

Hi all. Does anyone know what's involved in 'bleeding' the ATTESA all wheel drive system on an R32 GT-R? Ever heard of them cutting out after 20mins or so?

not cutting out, but mine just never starts working...fluid...dashboard light...torque gauge..all fine !!