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 ABS sensors. 1 or more? View next topic
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Professor Peach
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Car: 2016 S3 Quattro

Joined: 17 Dec 2010
Posts: 1614

Location: Northampton

PostPosted: Fri Feb 26, 2016 3:41 pm  Reply with quoteBack to top

Folks - front right ABS sensor is showing as faulty. Is it OK to replace just one, or do you recommend a pair or all 4? Discuss.

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Rob

All too often, the light at the end of the tunnel is a headlamp on the front of the on-coming train of disappointment.

When designing something to be fool proof, never underestimate the ingenuity of fools.
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briang9
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Car: S8 & RS6
Power: 360 & 572

Joined: 22 Dec 2010
Posts: 28

Location: Scotland

PostPosted: Fri Feb 26, 2016 3:47 pm Reply with quoteBack to top

I have replaced only one at the front before, sometimes you can be lucky and extend their life by just taking it out and cleaning it

cheers
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Professor Peach
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Car: 2016 S3 Quattro

Joined: 17 Dec 2010
Posts: 1614

Location: Northampton

PostPosted: Fri Feb 26, 2016 4:59 pm Reply with quoteBack to top

briang9 wrote:
I have replaced only one at the front before, sometimes you can be lucky and extend their life by just taking it out and cleaning it

cheers


Thanks Brian. It's like there's an echo!  

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Rob

All too often, the light at the end of the tunnel is a headlamp on the front of the on-coming train of disappointment.

When designing something to be fool proof, never underestimate the ingenuity of fools.
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Tony K
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Car: EX:FL S4 Noggy Avant
Power: 337 bhp
Torque: 362 lb/ft

Joined: 29 Jan 2012
Posts: 1351

Location: Northampton

PostPosted: Fri Feb 26, 2016 5:07 pm Reply with quoteBack to top

Yes this ^^ Reluctor ring could be dirty

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jasongtr
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Car: not silver :) B5 RS4
Power: Shower
Torque: Sheet

Joined: 08 Mar 2011
Posts: 1080


PostPosted: Fri Feb 26, 2016 6:11 pm Reply with quoteBack to top

Had any work done on the corner that is showing faulty Rob? Not sure if your abs sensors are push fit or bolt in but on my a6 i knock one in so it was too close to the ring and that through a fault. If yours are bolt in that wouldn't happen so ill shuddup
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Professor Peach
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Car: 2016 S3 Quattro

Joined: 17 Dec 2010
Posts: 1614

Location: Northampton

PostPosted: Fri Feb 26, 2016 7:48 pm Reply with quoteBack to top

jasongtr wrote:
Had any work done on the corner that is showing faulty Rob? Not sure if your abs sensors are push fit or bolt in but on my a6 i knock one in so it was too close to the ring and that through a fault. If yours are bolt in that wouldn't happen so ill shuddup


As you know Jason, I'm not perhaps the most technical person on this site, so have no idea how they fix on (nor what it looks like or where it is). I have been reading a bit more (following some discussions on another forum more specific to the car in question) and I've updated with this.....

The scan said front right, but having read more this afternoon I'm becoming suspicious of damp around the brakes ECU, as it only ever happens just after being washed. I did have some water build up recently from a blocked drain. A day or two later it goes again and is fine. I'll investigate in the daylight tomorrow. Perhaps I should just stop washing it!

To answer your question though, no work done on the front end since I did the new pads 10 months ago I don't think.

Oh well, I'll have a nosey tomorrow.

_________________
Rob

All too often, the light at the end of the tunnel is a headlamp on the front of the on-coming train of disappointment.

When designing something to be fool proof, never underestimate the ingenuity of fools.
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jasongtr
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Car: not silver :) B5 RS4
Power: Shower
Torque: Sheet

Joined: 08 Mar 2011
Posts: 1080


PostPosted: Fri Feb 26, 2016 8:23 pm Reply with quoteBack to top

damp/wet will indicate to me the sensor just needs changing, had it before in another car
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Professor Peach
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Car: 2016 S3 Quattro

Joined: 17 Dec 2010
Posts: 1614

Location: Northampton

PostPosted: Fri Feb 26, 2016 8:36 pm Reply with quoteBack to top

jasongtr wrote:
damp/wet will indicate to me the sensor just needs changing, had it before in another car


Could be. Was my first thought. See the daylight brings.

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Rob

All too often, the light at the end of the tunnel is a headlamp on the front of the on-coming train of disappointment.

When designing something to be fool proof, never underestimate the ingenuity of fools.
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