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ABS tone ring: replacement and selection

When and why it is necessary to replace ABS tone ring

Operational lifetime of this component is not specified. Necessity of ABS tone ring replacement takes place in case of its breakage or teeth loss. Also, the part is replaced at severe corrosion damaging.

The component can get serious mechanical damages because of hitting it by foreign objects or because of carelessness during repair works performing, for instance, at CV joint dust boot replacement. Contact with moisture leads to corrosion of the ring.

Poor condition of this component is indicated by activation of the corresponding dashboard indicator. The on-board computer can display an error, if it is installed. Also, efficiency of emergency braking worsens at damaging of the ABS tone ring.

This element should be replaced at a service station. Peculiarities of component replacement process depend on its location. For example, if the part is mounted on the CV joint, than for its replacement you will need to demount the wheel and brake caliper. There are rings integrated into the wheel hub bearings. In this case, the whole assembly is to be replaced at defectiveness of the ring. After all jobs finished, wheel alignment should be done.

How to select ABS tone ring

There are the following types of these parts: metal toothed rings and plastic rings with ferromagnetic elements. The first ones are used in systems with active and passive sensors, while the second ones – only in systems with active sensors.

In order to make ABS perform its functions properly, purchase high-quality rings only. They can be found, for instance, in the assortment of such brands as MAPCO, Metzger and VAICO.

Choosing the ABS tone rings be guided by your vehicle characteristics: the brand, model, production year and the configuration version. Consider such component characteristics as outer and inner diameters, width, quantity of teeth. Take into account the axle, for installation on which the ring is designated.