groove for security the wheel bearing

[Tom_]

Guys,i have problem, that groove for security the wheel bearing,its not there.Maybe there was,but after years and rust, its only some rests of groove.Any ideas?How solve this problem?

[irishs2]

The later cars didnt use the circlip. So there was never a groove.



A better pic without bearing

[Tom_]

so only press into the housing and than use a bolt to the shafts?Thanks

[irishs2]

Yes exactly, but as usual be careful pushing the hub into the bearing, support the inner part of the bearing from the other side, I destroyed one bearing this way

You probably know that already, but no harm mentioning it.

[Rusty]

Yes, press in only. Mine were like this. Takes a few tons to press in, so it's fairly secure

[Tom_]

Thank you guys,i´ve alread a panic,that i have again something "special"

[Error404]

When you press the new bearing in make sure you only apply force to the outer race of the bearing

[UrS4boy]

C4 UrS Front Wheel Bearing info

Not sure if this applies to the S2s (or 2.3L CQs) but with the C4 UrS4/S6s, you have to be sure to get the correct wheel bearing. The incorrect C4 UrS wheel bearing has two inner parts, split 18 mm/18 mm with a 1 mm gap and the same inside diameter (45 mm IIRC). The correct C4 UrS wheel bearing has a split as well but it is 23 mm at 43 mm diameter and 13 mm at 45 mm diameter (with a 1 mm gap) (see photo)

C4 UrS Wheel Bearing PN Sleuthing results
http://forums.quattroworld.com/s4s6/msgs/181748.phtml

Example wheel bearing kit parts break down:
http://forums.quattroworld.com/s4s6/msgs/181853.phtml

[Error404]

Yes the S2/CQ20v front bearing is also stepped, in fact I am sure it is exactly the same

[UrS4boy]

Yes the S2/CQ20v front bearing is also stepped, in fact I am sure it is exactly the same

Okay, good to know.

So the stupid question of the day (not for you Error) *IS*:

Which way does the step go? Larger step diameter in or larger step diameter out?

(I know the answer - I just want people to think this through).

[irishs2]

Homework

[Nuvo]

Larger diameter faces out. Paul N. wrote a nice guide here.

[UrS4boy]

Larger diameter faces out.

Correct. Otherwise, you can't get the hub pressed in properly without breaking the bearing.

[RoadKill]

i used the old bearing to push the new one in on mine

[Tom_]

Thanks guys.....