[Warning Light] ABS and ESP

[Claude]

Hello! I have been looking through the threads but i could not find quite a similar topic.
I am currently having issues with the ABS on my 2015 Berlingo Hdi 1.6l 4x4 Dangel named Claude.
I got new wheel bearings pressed into both front wheel hubs but since refitting them on my car the ABS and ESP light are on. The ABS does not work any more and neither is the ESP. The clip that holds the new bearings in barely leave enough space for the sensors to fit, but they are in the correct place, flat and hover evenly over the rubber bearing seal. I was wondering now if the clip distorts the magnetic field somehow since it is so very close to the sensor. The old clip on the previous bearing was not even close to being that tight of a fit. The mechanic who pressed the new bearing in said that i might have to cut the clip a bit if I can not fit the sensor.

I have attached to doodles to show the difference between the old and the new bearing clip.

Also my little OBD App says C1321 ABS front left. So i assume it is just front left? I shall switch the front sensors and see if it is still front left. I got a new sensor on the front left because i damaged the old one when i took the hub out to get it to the shop.

Thank you in advance for your replies.
If you have questions for me please ask.

Kind regards from northern Norway.

[jj9]

Your vehicle is a rare beast so I'm not sure what bearings / hubs are used.

If it were a standard front hub..... going from your sketch my first thoughts are, that the bearing hasn't been pressed fully home which is causing the circlip not to fully engage in the slot, this would explain why the circlip ends are too close together, of course it could be an oversized circlip or some other factor. 

If the circlip ends are causing the sensor to be pushed slightly out away from the rubber bearing seal this could be your problem, the bearing seal incorporates the magnetic tone wheel that the speed sensor (ABS sensor) gets its signal from. 
The bearing also has to be fitted the correct way round so the tone wheel faces the sensor.


.

[shtu]

c1321 talks about abs "coherence", ie, the reading from that corner makes no sense when compared to the others.

That smacks of,

- Sensor incorrectly installed and not picking up the tone ring properly.
- Bearing fitted back-to-front and no signal picked up at all.

If you have a reader that can get you the live data from each corner that can be confirmed, and checked by swapping sensors between sides.

The circlip isn't fully seated in the goove of the hub. There's something wrong, either the bearing themselves (slightly too wide) or their installation (not pressed in correctly).

You're a bit stuck there unfortuantely, as the garage only did part of the job. Start by seeing if you can check the magnetic ring is on the right side.

What brand are the new bearings?

[Claude]

Your vehicle is a rare beast so I'm not sure what bearings / hubs are used.

If it were a standard front hub..... going from your sketch my first thoughts are, that the bearing hasn't been pressed fully home which is causing the circlip not to fully engage in the slot, this would explain why the circlip ends are too close together, of course it could be an oversized circlip or some other factor. 

If the circlip ends are causing the sensor to be pushed slightly out away from the rubber bearing seal this could be your problem, the bearing seal incorporates the magnetic tone wheel that the speed sensor (ABS sensor) gets its signal from. 
The bearing also has to be fitted the correct way round so the tone wheel faces the sensor.


.

Thanks for the reply. It is a fine car . It is the same as conventional Berlingos except a bit taller suspension and 4x4.
It seems to be in all the way and the clip is in the groove but it just is much larger that the one that was in before.

Yes, i made sure that the sensor is flush and parallel to the rubber seal. It is pressed in the correct way yes.

[Claude]

c1321 talks about abs "coherence", ie, the reading from that corner makes no sense when compared to the others.

That smacks of,

- Sensor incorrectly installed and not picking up the tone ring properly.
- Bearing fitted back-to-front and no signal picked up at all.

If you have a reader that can get you the live data from each corner that can be confirmed, and checked by swapping sensors between sides.

The circlip isn't fully seated in the goove of the hub. There's something wrong, either the bearing themselves (slightly too wide) or their installation (not pressed in correctly).

You're a bit stuck there unfortuantely, as the garage only did part of the job. Start by seeing if you can check the magnetic ring is on the right side.

What brand are the new bearings?

Thanks for the input!  

Makes sense. When I start the engine, the ABS and ESP lights come on. I start driving. The ESP stays on the ABS goes of for a few meters and comes back on.
So it already reacts to a problem on it before the wheel starts spinning and give info to the ABS module.
The sensor is flush and parallel to the seal and the bearing is on the right way yes.
Here is a link to the bearing used. It is in all the way and i properly cleaned the groove before inserting the clip. it just seams much bigger than the original clip that was in before.
https://www.eurodel.no/hjullager-a-b-s-200404
unfortunately I only have a Bluetooth OBD2 reader to read only a few live data sensors and wheel speed is not one of them .

[jj9]

So your vehicle uses the standard front hub arrangement.

Is the gap between the ends of the circlip the same on the Right side (Good side) ?

Some of the circlips supplied with bearings can be slightly thicker and difficult to fully locate in the groove, a quick brush over with a flap wheel on the grinder cleans them up and gets them fully located.

The tone wheel in the bearing could be defective, they are quite delicate and it doesn't take a lot to damage them.

If you can't figure it out by swapping things around the only real option is to read the live data from the Left Front to see if there is a good signal.

.

[shtu]

Some of the circlips supplied with bearings can be slightly thicker and difficult to fully locate in the groove, a quick brush over with a flap wheel on the grinder cleans them up and gets them fully located.

That is a good one I hadn't thought of. I wouldn't feel bad reusing the original clip if it's in decent shape.

I've not heard of "A.B.S." Brand bearings before.

[Claude]

Some of the circlips supplied with bearings can be slightly thicker and difficult to fully locate in the groove, a quick brush over with a flap wheel on the grinder cleans them up and gets them fully located.

That is a good one I hadn't thought of. I wouldn't feel bad reusing the original clip if it's in decent shape.

I've not heard of "A.B.S." Brand bearings before.

I might have reused them but they were seriously rusty and one of them snapped  

I will have a go at them on Sunday again and will keep updating

[Claude]

Sorry for the long silence. I have been to the mechanic twice since and they have changed the left front ABS sensor the first time around even though I just put a new one on and charged me anyway for it including a hefty workshop fee. I swallowed it in the hope it is fixed.
Of course it was not. Was driving the next day and out of nowhere the lamps came back on and the car was shouting at me.
So back there again today. Needed twice as long this time around and concluded that the problem still persists and that they could not put their finger on another possible cause. And of course left my again with a nice bill and nothing to show for it.
Now they are considering changing the ECU, for which i will get a quote tomorrow. They say "we can not be 100% sure changing the ECU will fix it". Pulling their head out the noose so to speak.
Soooo nothing new, wanted to keep you updated.
Have a nice evening!