ABS Pressure Accumulator

Flashing warning lights? Frequent starting of the hydraulic unit? These are pretty sure signs of a worn ABS accumulator. This accumulator is actually a real wear part.

The prerequisite for a sustainable repair is an intact diaphragm. Ideally, the residual pressure should be close to the wear limit. You can easily check whether an ABS pressure accumulator still has residual pressure yourself on site. Once the component has been removed, you can use a blunt object (e.g., a 3 mm Allen key) to drive into the pressure accumulator as shown below. If you encounter clear resistance after approx. 20 mm, this is the diaphragm. This is pressed down by the nitrogen pressure. This means that the accumulator still has residual pressure. However, it is not possible to determine how high this pressure is. However, if you can drive the tool all the way into the accumulator ball, this is rather unfavourable. The accumulator no longer has any gas pressure.

We regenerate ABS system pressure accumulators for various models from Saab, Jaguar, VW, Alfa Romeo, Jeep, Renault, Volvo, and other models.