Hi All,

 

I am about to replace the front wheel bearing on my Fabia 1 using the 72mm special tool/puller. The wheel bearing kit has arrived which includes a 73mm diameter plastic ring with shallow teeth on one side. I have watched videos of the job being done using the 72mm special tool/puller but there has been no mention of the plastic ring enclosed with my kit.

Any ideas on what the plastic ring is for would be most appreciated.

From what I can gather its the outer o-ring seal for the half-shaft, also called deflector ring, fits on drive shaft end before inserting splines into front wheel bearing

 

 

Part no 6Q0407623E

 

Item 10a here

 

 

 

Item 3 here

Edited 24 August, 20232 yr by xman

You might find that the design of these deflector rings has changed slightly, I found that when I replaced the front bearings on my wife's 2015 VW Polo 1.2TSI last year, in my case the car already had the newer profile of deflector ring and I had a pair of older version of deflector rings left over from a road spring replacement job I had done on a 2002 VW Polo 18 years, roughly, earlier.

 

In the event, I did try to replace the deflector rings on this 2015 Polo last year and failed miserably  on the left hand side and just end up breaking off too many of the gripper "teeth" - so I refitted the original one, one the right hand side, I did manage to fit the new deflector ring.  Note, I did clean off as much rust/curd as I could before trying to fit these deflector rings. These just seem to be to deflect general road curd away from the bearing area, there is a lip aon the end of the drive shaft that they locate over.

 

I'm just relating that tale in case you are concerned about the new deflector plates looking different.

 

The survival of the ABS sensor will be in doubt judging by my experience, the left hand side one survived okay, the right hand side one, because there was a greater build up of rust/curd, which I needed to clean up in order to get the rear forcing plates to sit into the back of the hub properly. Obviously closer in, where the stub end of the ABS sensor pokes out to almost touch the magnetic ring on the rear of the bearing, must have had enough rust/curd remaining to cause that ABS stub to get "collected" by the rust/curd when the bearing was being pulled out by the tool.

 

Before I started using this tool, I ground away an extra area to be sure that the ABS sensor was not being contacted, with the same thoughts of caution when pulling the new bearings into place AFTER I had competed this job, I ground out a vertical channel on the inner face of the rear "fitting" plate - just while I remembered trashing an ABS sensor.

 

Remember to use plenty Moly grease on the forcing screw rod, its nut and its thrust bearings, also clean up/out the area where the new bearing will land into and apply just a touch of Lithium based grease to help ease the bearing in.

Edited 25 August, 20232 yr by rum4mo
ring not plate! plus a bit more info.

I advise to leave original plastic ring in it's place if it looks ok.

Thanks for that.

Kind regards