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ABS magnet test?

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Onefut   
Sun Sep 09 2018, 09:13am
Member No: #51895
Joined: Aug 15 2018
Location: North Devon
Is there a way to test the magnets in the wheel bearings?

I'm trying to troubleshoot gearbox abs/esr faults and have replaced the front abs sensors and cleaned the bearing seal face which has improved the issue but now when I set off all faults vanish from screen for about 30secs then reappear and once there stay and I cannot go above 3rd unless I engage a higher gear before the faults reappear and once I drop down a gear I cannot go back up until the car is restarted

Any ideas how I can test the magnets?
routemaster1   
Sun Sep 09 2018, 09:22am
Member No: #574
Joined: Jul 08 2007
Location: Dorset
Onefut wrote ...

Is there a way to test the magnets in the wheel bearings?

I'm trying to troubleshoot gearbox abs/esr faults and have replaced the front abs sensors and cleaned the bearing seal face which has improved the issue but now when I set off all faults vanish from screen for about 30secs then reappear and once there stay and I cannot go above 3rd unless I engage a higher gear before the faults reappear and once I drop down a gear I cannot go back up until the car is restarted

Any ideas how I can test the magnets?

Not sure what you mean by magnets. The bearing are fitted with a toothed ring which interacts with the ABS sensors. Just had to have a new sensor and ring on our C3.

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Onefut   
Wed Oct 10 2018, 04:12pm
Member No: #51895
Joined: Aug 15 2018
Location: North Devon
On the c4gp it's magnets built into the seal on the wheel bearings
 

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