ABS Reluctor rings

ABS Reluctor rings

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Discussion

TheD

Original Poster:

3,136 posts

204 months

Tuesday 20th August
quotequote all
I have a BMW 2009 325I with 112,000 miles. I have just been told the ABS fault is from the rear Reluctor rings. The rings are only about £10 each but I have been quoted £500 to replace them as a minimum. Is it worth doing or sell the car with the fault

E-bmw

9,788 posts

157 months

Tuesday 20th August
quotequote all
Have you tried cleaning the rings as it is frequently due to a build up of crud/flaky rust that can cause the issue?

The Conflated Outlier

89 posts

18 months

Tuesday 20th August
quotequote all
£500 is taking the piss.


Assuming (there's the key word) that the driveshafts push out of the rear hubs ok, that the big nuts aren't corroded to buggery - it's about 90 minutes a side. Undo the big nut, six torx driveshaft to diff bolts and out it comes. The exhaust side will involve dropping the rear box but that's no biggie. Then chisel the old rings off, 5 minutes in the bench grinder to clean the CV joints, new rings in the kettle to get them good and hot and press them on by hand. They shrink onto the CV as they cool.

If the shafts have rusted into the hub, as they can, then that's a problem. But it's 10-20 minutes to establish this. Wheel off, remove the locking ring, slacken the nut 5-6 turns and see if the shaft is going to play ball.


'£500 minimum' is a 'ps off' price. £300 is about right.

TheD

Original Poster:

3,136 posts

204 months

Tuesday 20th August
quotequote all
The Conflated Outlier said:
£500 is taking the piss.


Assuming (there's the key word) that the driveshafts push out of the rear hubs ok, that the big nuts aren't corroded to buggery - it's about 90 minutes a side. Undo the big nut, six torx driveshaft to diff bolts and out it comes. The exhaust side will involve dropping the rear box but that's no biggie. Then chisel the old rings off, 5 minutes in the bench grinder to clean the CV joints, new rings in the kettle to get them good and hot and press them on by hand. They shrink onto the CV as they cool.

If the shafts have rusted into the hub, as they can, then that's a problem. But it's 10-20 minutes to establish this. Wheel off, remove the locking ring, slacken the nut 5-6 turns and see if the shaft is going to play ball.


'£500 minimum' is a 'ps off' price. £300 is about right.
That is great advice. I don't mind the £300 so much. Cheers.

bodhi

11,289 posts

234 months

Tuesday 20th August
quotequote all
I've had this same issue twice on my 1 Series which is fairly similar underneath.

First time it was under £300 as described above, second time it was just over £500 as I needed a new driveshaft as well as the old one was too far gone on 176k miles.

At the mileage you are on you should just be able to clean up the driveshafts and fit new rings/sensors.

TheD

Original Poster:

3,136 posts

204 months

Wednesday 21st August
quotequote all
bodhi said:
I've had this same issue twice on my 1 Series which is fairly similar underneath.

First time it was under £300 as described above, second time it was just over £500 as I needed a new driveshaft as well as the old one was too far gone on 176k miles.

At the mileage you are on you should just be able to clean up the driveshafts and fit new rings/sensors.
Thanks