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Replacing ABS reluctor rings

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32K views 33 replies 8 participants last post by  teasdas  
#1 ·
Morning all, had a few lights come on related to abs/dsc/traction control and code reader pointed to right rear wheel speed sensor. I've bought a new sensor but when I took the old one off notice it was scuffed and on closer inspection the reluctor ring has corroded and cracked. Ordered a pair of reluctor rings and I'm going to have a crack at replacing them myself so I have a couple of questions.
First, any tips to get the driveshaft bolts undone as they seemed completely solid when I had a go yesterday.
Second where can I buy replacement bolts on their own or am I ok to reuse if torqued correctly?
Cheers
Sam
 
#7 ·
teasdas said:
marco_polo said:
You can get new BMW hub nuts from BMW.

I'm guessing you've read all this already, being a current thread?
Click to expand...
Thanks Marco! Yeah I've seen that, is there a knack to getting the driveshaft bolts undone or just use a decent length breaker bar?
Cheers
Click to expand...
Did this last week, soaked the diff bolts in Plus Gas on a toothbrush the night before (both ends)and the 32mm spline end nut behind the wheel centre badge, I didn't remove the wheels to remove the shafts. Then gave them a tap with a pin hammer to break any seal. Didn't need a breaker bar, large ratchet sufficed. Just don't fit the new rings until the drive shaft ends are spotless. (Do the passenger side first, its much easier)
 
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#10 ·
I had my local garage replace my passenger side abs ring and it ran me £400 for parts and labour so if you can do it yourself you could save a penny or two. I will be doing it myself next time one goes!
 
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#11 ·
teasdas said:
Managed to get all the bolts undone, hub but off, but I can't get the shaft free from the hub? Is there anything I can try without damaging any parts? If not it's booked in at the garage on Wednesday but I had hoped to save a few quid by doing it myself.
Click to expand...
Plus Gas, lots and lots of Plus Gas.

Let it soak for hours to penetrate, then give it a whack with a plastic (or other soft) hammer
 
#12 ·
marco_polo said:
teasdas said:
Managed to get all the bolts undone, hub but off, but I can't get the shaft free from the hub? Is there anything I can try without damaging any parts? If not it's booked in at the garage on Wednesday but I had hoped to save a few quid by doing it myself.
Click to expand...
Plus Gas, lots and lots of Plus Gas.

Let it soak for hours to penetrate, then give it a whack with a plastic (or other soft) hammer
Click to expand...
It's currently soaking in Plus Gas so I'll give it another go tomorrow, fingers crossed. If not I'll just have to fork out for garage fees [emoji30]
 
Z
#13 ·
Adamski_m said:
I had my local garage replace my passenger side abs ring and it ran me £400 for parts and labour so if you can do it yourself you could save a penny or two. I will be doing it myself next time one goes!
Click to expand...
bloody hell £400!

my local only charged me £120 to swap it over and think it was about another £50 in parts for a ring and padgid sensor.
 
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#14 ·
Zambo said:
Adamski_m said:
I had my local garage replace my passenger side abs ring and it ran me £400 for parts and labour so if you can do it yourself you could save a penny or two. I will be doing it myself next time one goes!
Click to expand...
bloody hell £400!

my local only charged me £120 to swap it over and think it was about another £50 in parts for a ring and padgid sensor.
Click to expand...
I'm hoping it will be closer to £120, was that for one side or both? Surely on a ramp it shouldn't take longer than a couple of hours?
 
A
#15 ·
Yeah I was robbed and the idiots put the cable for the wheel speed sensor back on too tight so it kept unplugging itself :rollseyes:
 
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Z
#16 ·
teasdas said:
Zambo said:
Adamski_m said:
I had my local garage replace my passenger side abs ring and it ran me £400 for parts and labour so if you can do it yourself you could save a penny or two. I will be doing it myself next time one goes!
Click to expand...
bloody hell £400!

my local only charged me £120 to swap it over and think it was about another £50 in parts for a ring and padgid sensor.
Click to expand...
I'm hoping it will be closer to £120, was that for one side or both? Surely on a ramp it shouldn't take longer than a couple of hours?
Click to expand...
it was just the one side, think it was a couple hours work for them to get it all done.
 
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#17 ·
No luck getting the shaft out of the hub so it's off to the garage for them to have a look and see how much it will cost. If it's going to be a fortune I'm going to buy a universal hub puller and give that a go. My only concern if I get it out is will it go back in easy enough?
 
#20 ·
Garage had a look and said 9 out of 10 times the shaft is seized in the hub (dont I know it!) and i could be looking at 4 hours labour each side plus new bearings probably... to the tune of £450! [emoji44]
So I've bought a hub puller and I'm hoping that will free the shaft!
Think it might be about time I bought an impact driver to save me a load of time!
 
#22 ·
Well finally got the driveshaft free from the hub this morning with a bit more punching. My wheel bolts weren't long enough for the hub puller of course! [emoji19] but hey it's out!
Here is the offending ring, cracked as you can see
Image

So far no bearing damage so a very nice saving of £450! Well happy. I think I'll leave the passenger side until it gives me a problem though [emoji23]
Thanks for all your useful info!
 
#24 ·
marco_polo said:
Good Man. :thumbs:
Click to expand...
Thanks Marco, seems all is not well though as I'm still getting the orange traction control light on it's own with code CC-ID 35. Haven't had it hooked back up to code reader yet so could it just be the new sensor is faulty.
I haven't done the n/s yet so there's every chance it could be that side now.
Brakes seem better for some reason too but that may just be in my head [emoji848]
 
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