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ABS at slow speeds

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Old Mar 8th, 2021, 12:21   #11
Martin Cox
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These are the rings I used on my 1998 V70 Tdi auto about 18 months ago.

https://www.ukpartsdirect.com/abs-pr...ring-1005.html

They've been absolutely fine to date and were easy enough to fit so I can recommend them.

Although I never had any ABS related problems, the MoT man, quite rightly, didn't like the look of them and listed them as an advisory.

One ring split but still didn't cause any problem but it was high time they went. When I took the old rings off they literally fell to pieces. After cleaning up the surface of the CV joint where the ring is seated, I warmed the rings with a hot air gun and they tapped easily into place with a small tack hammer and a block of wood. I didn't use the retaining fluid, which may turn out to be a mistake, but I certainly didn't need it to hold them in place.

If the driveshaft hasn't been previously separated from the hub, I believe they can be an absolute pig to get apart since the splines may be glued into the hub. Mine were no problem since the local Volvo dealer had already had the pleasure of dismantling them when the CV boots were replaced a few years ago.

As for tools, axle stands and a suitable jack for getting them under the car, a suitable socket for the driveshaft nut or bolt (mine had the large 36mm nut) and maybe a breaker bar, a torque wrench and I think I used a ball joint splitter too to separate the track rod end from the steering knuckle. Otherwise the usual assortment of metric spanners and sockets ought to be adequate

If you gain access to the CV joints by disconnecting the strut from the steering knuckle as I did, you'll need replacement nuts and bolts for reassembly. I found I didn't need to remove the driveshafts from the car and was able to replace the rings with them in situ, taking care not to pull on the shaft. A few tinks from a pin hammer when fitting the rings are unlikely to do much harm.

I didn't need to remove the ABS sensor from the steering knuckle but you may have to disconnect the cable. If you do, only pull on the connector, not the cable. No prizes for guessing how I know.

All in all, the job turned out to be easier than I'd expected and I've had no further trouble to date.

Hope this is of some interest.

Martin 1998 V70 Tdi auto 227,000 miles

Last edited by Martin Cox; Mar 8th, 2021 at 12:28.
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Old Mar 25th, 2021, 14:17   #12
malc-c
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Guys just thought I would give you an update.

I phoned a few garages to get quotes for having the 3rd party rings fitted, and out of the three, one of which was a local independent Volvo Specialist, two mentioned that when they have done this in the past, often the customer would return and have the genuine OEM parts fitted as the 3rd party ones don't hold up. So the car is booked in to have genuine OEM rings fitted at the IVS, who has done work in the past for me and remembers the car well !

The O/S drive shaft was changed back in January 2017, when a used one was fitted owing to issues with different splines on either end on the new parts supplied. Now it may well be that the part came from an older car and it's that ring that has let go, or it could be the original thats fitted to the original NS shaft ?

If anyone wants a set of rings (from the link Martin provided), maked up as ABS-050 - Volvo 48T with a bottle of "retaining" fluid then drop me a PM. Would like to recover the £20 spent, but equally like to help someone out - so £15 incl post to a UK mainland address.
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Old Mar 26th, 2021, 23:40   #13
Martin Cox
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Thanks. Updates are always appreciated; they contribute significantly to our collective knowledge and experience. All too often we are just left wondering how somethng turned out.

As an aside, if I'd been paying someone else to fit these rings, I'd have gone for the genuine article too.

Martin
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Old Mar 27th, 2021, 17:20   #14
malc-c
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Hi Martin,

I also think that it's down to the individual's circumstances and tools available. In the past whilst living at my parents old house we had a garage, jacks, ramps and hoists and I would think nothing of swapping over gearboxes between two Vivas one afternoon and then driving down to Brighton the next day. These days the car is parked on a fairly busy road (bus route too) and I no longer have access to all the tools etc (that my brother took with him when he moved out). I'm sure if I had the space, and the tools then I would be more inclined to have a bash at some of these repairs.

The other advantage of using a decent garage is that if it goes wrong days later you have some form of redress to have it sorted at no additional cost. Not that I've ever had to do that where this garage is concerned. The chap that runs it is an excellent mechanic and all round nice and helpful guy.

I agree, this forum is a wealth of knowledge and an excellent source of information. I'll tag a post to the end of the thread after the job is complete, just to close it off for any future reference
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Old Apr 7th, 2021, 12:31   #15
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Well just to give closure, I've just returned from having the car fixed. Turned out to be the N/S ABS ring which is the original factory fitted part - so 22 years and 166K before needing replacement.

Here's the offending article. Split and corroded !

Granted the cost of one OEM ring was more than the two aftermarket parts @ £47.80 + VAT but I would much rather have a one time fix rather than have to go back in a couple of months and have to pay twice. In fact the IVS garage now won't fit aftermarket parts as it's given them so much grief.

Part of the labour included checking the codes for faults and nothing was shown for the ABS so nothing wrong with the module or sensors. I explained that the faults have never been read / cleared since I got the car in 2007 so the two that were shown for the siren battery fault (which I know is an issue) and heater fan (the blower was replaced a few months back) were cleared.

So job done and confidence restored
Attached Images
File Type: jpg abs ring.jpg (82.6 KB, 6 views)
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Old Apr 7th, 2021, 20:16   #16
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Quote:
Originally Posted by malc-c View Post
...Turned out to be the N/S ABS ring which is the original factory fitted part - so 22 years and 166K before needing replacement.

Here's the offending article. Split and corroded !
...
22 years and 166k, that's the trouble with Volvo they're just not made to last
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V70 2.5 10v Torslanda Manual 98 Sreg
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Old Apr 7th, 2021, 20:33   #17
malc-c
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Quote:
Originally Posted by DaveNP View Post
22 years and 166k, that's the trouble with Volvo they're just not made to last
- Yeah shocking isn't it !
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