Attessa

[STAGWAGN]

Hey all. Can someone please tell me what fluid i am best to put in my attessa system? I checked the reservoir on the weekend and its on the minimum line so i thought i better do something about it as the workshop that services my car havent checked it. Also do i have to bleed the whole system or can i just top it up? Any help is appreciated

Cheers Brad

[chook]

if it was me i would drain the lot, prob original nissan fluid in there. Recommended fluid is any Nissan matic-D ATF fluid, such as Transmax Z or Nissans own. But i am sure many people just use a Dexron III ATF fluid, although I wouldnt. once you have filled it, idle the car, check reservoir level, top up, connect clear hose to bleed nipple and release any air bubbles, again whilst it is running.

[Stinky Rooster]

and dont forget that there are 2 bleed points (in the C34 - NFI about the M35) one at the pump above the rear diff and another at the actuator at the back of the transfer case.

[KiwiRS4T]

Nipple above diff bottom right of photo near mounting point:

[oscillo hero]

ive got a 97 rs4 and the oil in the back hatch area is seperate from the oil for the transfer case. the oil from the hatch area activates a piston type setup which engages the awd. the transfer case at the end of the gearbox has a drain and filler plug in them. thats where the gearbox puts power to the front driveshaft. the oil from the hatch area was fine on mine and the transfer case oil was all burnt and black. that caused a shudder when the awd was under load. for the transfer case i used castrol transmatic z. for the hatch area i am unsure what oil to use. all i know is that it is very thin.

[KiwiRS4T]

ive got a 97 rs4 and the oil in the back hatch area is seperate from the oil for the transfer case. the oil from the hatch area activates a piston type setup which engages the awd. the transfer case at the end of the gearbox has a drain and filler plug in them. thats where the gearbox puts power to the front driveshaft. the oil from the hatch area was fine on mine and the transfer case oil was all burnt and black. that caused a shudder when the awd was under load. for the transfer case i used castrol transmatic z. for the hatch area i am unsure what oil to use. all i know is that it is very thin.

Yes the transfer case has its own oil supply but the nipple right at the end of the gear box extension near the hose that goes to the attessa on top of the diff is for the Atessa not for the transfer case oil. Filling is via the reservoir in the boot and both bleed nipples are for the Atessa. The fluid for the Atessa is officially Nissan's specially expensive power steering fluid but i use a semi-synthetic automatic transmission fluid. So you can go to Nissan or use any good quality atf.

[STAGWAGN]

oscillo hero Posted Yesterday, 05:44 PM ive got a 97 rs4 and the oil in the back hatch area is seperate from the oil for the transfer case. the oil from the hatch area activates a piston type setup which engages the awd. the transfer case at the end of the gearbox has a drain and filler plug in them. thats where the gearbox puts power to the front driveshaft. the oil from the hatch area was fine on mine and the transfer case oil was all burnt and black. that caused a shudder when the awd was under load. for the transfer case i used castrol transmatic z. for the hatch area i am unsure what oil to use. all i know is that it is very thin.

I have a shudder in my car under load. Im wondering if its the same thing. Not so much a shudder but a vibration in the rear at full boost. sounds like a good weekend job