hope this helps someone. glk 250 reluctor ring for the abs. 2303570182. CV axle needs to be removed. this is right rear. I had a code right rear wheel speed sensor but when I removed the sensor and looked in the hole the sensor sits in I could see damage to the ring when turning the wheel. there are little magnets in the rubber coating for the sensor to pick up. when i removed the rear axle the ring was cracked
bought new tone ring from car quest. $25. installed as shown in the picture. cleared codes. FIXED!!!! hope this helps. my tone ring was cracked. reluctor ring

