System Test (ABS and ABS/TC)

System Test (ABS And ABS/TC)

Important Notes

1. A system test (function test) must be performed if work is performed on the hydraulic unit No. 7, the speed sensors and the wiring harness or if the hydraulic unit is exchanged. This is the case after accident repairs, for example. This prevents electrical and hydraulic lines from being swapped and ensures flawless operation of the system.

2. A system test also has to be performed if certain brake lines are replaced, e.g. on the intermediate piece No. 8. Unintentional bending of the brake lines could lead to incorrect hydraulic allocation, despite the different thread sizes used (M12 x 1 and M 10 x 1).

3. The system test is not menu-prompted (program- guided).
- The system test consists of several test steps and is performed via different menus. Observe the specified sequence when performing the system test.
- The static test must be performed at the start of the system test.
- Remedy any detected fault before proceeding with the system test. On vehicles with TC, the version coding must be checked or corrected before the static test is performed.

4. As fewer test steps are required on vehicles with Solo ABS (without TC) (several components are not installed), the TC-specific test steps are not displayed in the corresponding menu during the Solo ABS system test.

Test steps No. 1, Nos. 6...10, Nos. 18...19 and No. 24 are therefore not necessary (not possible) with the Solo ABS.

5. After the system test, take the vehicle on a test drive and make sure that a controlled braking operation (ABS control operation) is performed.