[s-cars] ABS Sensor - front axle

[John Cody Forbes]

I'm not positive this applies to the S-cars, but if it's like other Audi models of the era you missed a step. The sleeve that holds the sensor must be replaced every time as they stick out beyond the end of the sensor. When you "insert until it stops" the stoping point is the sensor sleeve which holds the sensor the correct distance from the axle and then wears away during driving.

What I know for certain is that you do NOT want the tip of the sensor touching and wearing.

-Cody (mobile)

On Oct 4, 2010, at 8:45 AM, Manuel Sanchez <manuelsanchez at starpower.net> wrote:

> Fellow S-heads,
> 
> I am re-installing the front ABS Sensors and the instructions say to  
> push it in as far as it will go. When I do this when the splined axle  
> is not inserted into the hub, I can't get the axle to insert properly  
> because it is interfering with the toothed ring that it using to read  
> slippage (i.e its pushed in too far). If I install the axle first,  
> then insert the ABS sensor as far as it will go (i.e. makes contact  
> with the toothed ring) then there seems to be about 1/8 of an inch or  
> so of a gap between the "end" of the abs sensor and the hole in the  
> strut housing into which I am inserting it (in other words, it looks  
> like I should be able to push it in more).
> 
> I did not remove the ABS sensors when I shipped the uprights for  
> service, as I had many posts of how they break easily, so I had just  
> disconnected them inside the engine compartment and sent them in- 
> place on the strut housing upright. When I got the strut uprights  
> back the shop had removed the Sensors from the housing.
> 
> Is there supposed to be some sort of spacer or washer between the  
> "end" of the ABS sensor and the Strut Housing Upright?
> 
> Do I just push it in as far as it will go (i.e. it makes contact with  
> the toothed ring) and just let the toothed  ring wear a new groove  
> into the tip of the ABS sensor?
> 
> Thanks.
> 
> Manny
> 
> 95.5 ur S6 Avant (almost done with front suspension work)
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