Brake pulse abs ratteling

[marcgyver]

Hi All.

Somethings wrong with the brakes on my 99 Euroline Smiley with ABS.

Going slow up to about 20mph I can hear a ratteling noise from the engine bay....passenger side
Stepping on the brake pedal while hearing this noise will end up with the brake using abs....I can feel the pedal pulsing
At no time the ABS light comes on
Mot/Tuev Meister told me the ABS Sensor on the front right is very close if not touching the abs sensor
Car had a really messed up wheel bearing front left which might have caused this

Questions now: should I replace the sensor itself first or should I go for the sensor ring/sprocket?
Would anybody have a source for ordering these parts and for a manual changing these parts?

Thank you
Marc

[marcgyver]

Update:

Looks like the front left abs sensor is lightly touching the abs ring. Any advice on how to re-position the sensor?

Cheers,
Marc

[Chug]

I can't remember if there is any adjustment on the sensor, or it's bracket, I haven't had one with abs for years now, but if you have a look you may be able to loosen the bracket where it bolts on and move it.

[marcgyver]

Update:

Changing the sensor that had some scrapemarks didnt solve the issue.
I was going to look for error codes next but doubt this to be helpful since the ABS light never came on.
Any other advice what to look at next?

Best,
Marc

[Altransit]

Is it a warped disc by any chance

[marcgyver]

Thanks to Martijn: I just discovered a broken sensor ring just as he has described in this post back in 2007:

viewtopic.php?f=4&t=11927&p=127373&hilit=abs#p127373

Ring should be here next week and I am pretty confident it will fix the issue.

Best,
Marc