| Antilock braking system (ABS) |
| The ABS and ESP are vehicle safety systems; detailed system knowledge is required for working on such systems. |
| Testing and replacement or repairs should be carried out only by personnel specially trained for ABS. |
| Problems related to the ABS affect the braking system and the amplifier. The conventional braking system remains fully functional also without ABS. One must reckon with a somewhat changed braking characteristic. The rear wheels can block quite early on after the ABS warning light lights up! |
| The brake system is split diagonally. Brake servo assistance is provided pneumatically by the vacuum brake servo unit. |
| Vehicles fitted with ABS, ABS/EDL/TCS or ABS/EDL/TCS/ESP BOSCH 8.0 do not have a mechanical brake pressure regulator. Specifically matched software in the control unit, the electronic brake pressure distribution (EBD) regulates the brake pressure on the rear axle. |
| Required technical information: |
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| Binder: „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“ |
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| Self-study programme ESP No. 42 |
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| Technical Service Handbook |
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| Operating instructions for the vehicle diagnosis, measuring and information system -VAS- |
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