Interesting info regarding rear vectoring diff.

[8YARWY]

In preparation for when I change the Magna clutch fluid.

There are some changes from what we are used to vs Haldex system

More drain plugs for one.

Number 1 and 4 are for the rear gear oil filling / draining.

Number 2 and 3 are filling / draining for the left side clutch oil which is now sold in 275ml bottles

Number 5 and 6 are draining / filling for the right side clutch oil, again it takes 275 ml

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[Mike.46]

Makes sense I guess having two seperate clutches basically on the driveshaft side instead of just the one clutch before the differential

good Info

 

[flybynite]

In preparation for when I change the Magna clutch fluid.
There are some changes from what we are used to vs Haldex system
More drain plugs for one.
Number 1 and 4 are for the rear gear oil filling / draining.
Number 2 and 3 are filling / draining for the left side clutch oil which is now sold in 275ml bottles
Number 5 and 6 are draining / filling for the right side clutch oil, again it takes 275 ml

If dealers managed to drain the rear diff on a Haldex service by mistake, just imagine what they can get wrong with this one!!

 

[jdp1962]

I had a quattro sport differential on my 2015 B8 S4: I did have the diff fluid changed during my ownership but not by a dealer. It was done by a trusted indie. Is this the same system or a newer, updated one?

 

[8YARWY]

I had a quattro sport differential on my 2015 B8 S4: I did have the diff fluid changed during my ownership but not by a dealer. It was done by a trusted indie. Is this the same system or a newer, updated one?

Similar, however the sports diff is controlled by a single motor and actuators that work the left / right clutch packs / overdrive.

The 8Y is 2 motors on each side that operate a worm drive on the clutch packs.


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[drgav2005]

On a separate note, where did you manage to get a copy of the workshop manual? I don’t suppose you know what the torque settings are for the steering wheel?

 

[8YARWY]

On a separate note, where did you manage to get a copy of the workshop manual? I don’t suppose you know what the torque settings are for the steering wheel?

Same as this.

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[drgav2005]

Many thanks!!!

Seems like I tightened it up correctly which is a relief!

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