| Brake system: bleeding of air |
Caution | Please strictly follow the bleeding procedure of the brake system described in the present section. |
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| Do not mix the brake fluid with liquids containing mineral oils (oil, petrol, detergents) for any reason. Mineral oils damage the seals and sleeves in the brake system. |
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| The siphoned (used) brake fluid can not be re-used. |
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| Brake fluid is toxic. Also, being caustic, it must not come into contact with paintwork. |
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| Brake liquid is hygroscopic , this means that it absorbs humidity from the air, for this reason it should always be kept in sealed hermetic containers. |
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| Clean any spilled brake fluid with large amounts of water. |
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| Observe environmental requirements for disposal. |
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| The warning lamp of the brake system lights up steadily or blinks (depending on the version) if the brake liquid level is too low or if a fault is present in the ABS/ESP system or in the handbrake. |
WARNING | If the brake fluid is topped up with the brake bleeder - SAT 1175B -, take care that the filling pressure does not exceed the following values specified. |
| If the filling pressure given is exceeded, a change-over valve for EDS control with hydraulic increase prevents a complete purging of the areas specific to the EDS in the control unit of the brake system. In this case, complete bleeding of the brake system is not guaranteed. |
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Note | –
| Before proceeding with the bleeding tasks, adjust the pressure of the brake bleeder -SAT 1175B- according to the control unit of the brake system installed in the vehicle: |
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| Bosch 5.7 and 8.0: 2 bar |
Caution | In vehicles equipped with ESP, only perform the pre-bleeding if one of the chambers of the brake liquid container is completely empty (e.g. if the brake system shows leaks or after replacing the control unit of the brake system). |
| For the remaining vehicles NOT equipped with ESP, bleed the system directly according to the instructions in chapter → Chapter. |
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