I changed the driver's driveshaft due to split in the boot. Bought the plastic abs sensor ring protector. Had no issues for 3 weeks then ABS sensor intermittently erroring.

Looks like the abs ring which was inserted correctly has rubbed the abs sensor. There is a black smudge (from abs sensor) on the plastic ring (may have been warped?)

The plastic ring popped off after pulling out driveshaft in photo.

Of course the old abs sensor is rust pinned in hole in hub. Been there 8 years.

What if it happens again? Driveshaft is Borg beck bds1452 and I did other side with no issues 2 years ago.

Opinions?

Happened to anyone else?

I had Traction Control light on twice but it was coming out roundabout or really wet road, but it felt that front right wheel was to blame.

My sons did the same but it was due to a build up of dirt behind 1 plastic shield other was missing. I assume a bearing had been replaced and they never bothered with a new one. I replaced sensors/bearings but couldnt get the plastic rings at time. I didnt bother fitting them its been fine for two years. Had to destroy old sensors to get them out as they were rusted solid.

Alasdair

3 hours ago, Alasdair1 said:

My sons did the same but it was due to a build up of dirt behind 1 plastic shield other was missing. I assume a bearing had been replaced and they never bothered with a new one. I replaced sensors/bearings but couldnt get the plastic rings at time. I didnt bother fitting them its been fine for two years. Had to destroy old sensors to get them out as they were rusted solid.

Alasdair

Should I leave the plastic dust ring out?

I've fitted a 2nd one to the same driveshaft, it is in better condition than other one (teeth to click into driveshaft are all point same way, not warped - other wasn't bad though). The abs sensor is set back a few mm from metal ring of wheel bearing so I would expect any contact.

I had to change hub previously, the wheel bearing was changed and the abs sensor (inter brand - not the cheapest one, but middle price).

Had to take brake disc, carrier, caliper off and brake shield (luckily I changed this previously so bolts not seized).

Having to drill out remains of abs sensor and avoid hitting wheel bearing magnetic ring, last one did come out, this is pinched well and truly.

Thanks Alistair

Reckon if the ring is a better fit and clear of sensor I would fit it. It must be there to stop dirt etc. Wonder why it warped in the first place. I would first suspect a bad wheel bearing as they can heat up if there on there way out but as its newish doubt it. Make sure its spinning freely anyway with no signs of movement or grumbling. It could be a binding brake. Had one that after a long trip the whole hub was very very hot. Have also read that some cheaper aftermarket abs sensors are slightly longer and can cause problems. Hopefully its a one of

Alasdair

Brakes not binding.

Wheel bearing is fine (2nd one, 45k 8 years on,).

The original abs wiring connector was broken and becoming loose. It got some silicone to glue it together. I've got abs sensor out, wheel bearing magnetic ring looks fine.

I've bought a wired abs connector and one without wiring and pinned the connector myself.

Got 'electrical fault on circuit' , previous DTC was 'implausible' - some signal but dropping out.

I've done this work with battery disconnected and reconnected cleared dtc codes etc

I've removed the wiring and tried the wired connector. I used strip connector temp to check it all working, same error reoccurs.

Just realised might be polarity dependent....and .....it is.

It works when wires + and - reversed.

Abs error gone, data received from front right wheel.

Fingers x I'm not revisiting in a couple weeks

⁸

When I use those strip connectors I have started to cover in silicone sealant, let set and then self amalgamating tape. Have been finding that some are copper plated steel and tend to rust pretty quickly.

Glad you got it sorted

Alasdair

Strip connectors - strictly for diagnosis.

I bought some crimp tube connectors in case.

ABS Light back on after putting wheel back on and tightening wheel nut. I think new abs sensor is catching on the driveshaft dust cover again. I'll remove dust cover/thrower ring this time. There is something wrong here with this pattern part. A few mm too close to wheel bearing/hub.

Stripping it down again...soul destroying.

Photo B4 assembling with new thrower ring yesterday. All the teeth were clicked in and as flush as they can be.

Did read that some aftermarket ABS sensors can be very slightly too long. Hope you have a box of use once hub nuts and get it sorted.

Alasdair

Taken off thrower, slight score mark present. The abs sensor has a raised black disc facing driveshaft like for a date mark, that has worn down.

Abs sensor works with the wired connector. I think my pinning the electrical wires didn't get them 'fully home'

Going for the crimp connectors and silicone and cover wires in heat shrink.

It's fixed.

Useful info

Abs sensor electrical connector 6E0973702

Front right wheel

Connector unlocks when tab clicked up in one motion rather than squeeze.

https://www.amazon.co.uk/gp/aw/d/B0CQTLWH7B/ref=ox_sc_saved_title_1?smid=A3O6ITRM6FC8OR&psc=1

Used 18awg pink crimp connector