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Bosch 5.3 ABS/EDL system, function: Notes

The Bosch 5.3 system has a more compact design. The ABS return flow pump -V39-, the ABS hydraulic unit -N55- and the ABS control module (w/EDL) -J104- are combined to form the hydraulic control module. The bolts which secure the individual components of the hydraulic control module must not be unscrewed.

The direct connection between these components reduces possible sources of malfunctions. There is no provision for repairing the hydraulic control module - it must be replaced if necessary.

The brake system is split diagonally into two hydraulic circuits: one supplying the left front and right rear brakes and one supplying the right front and left rear brakes.

The individual components of the Bosch 5.3 system have the following functions: 

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