Automaker Opel uses DOT 3 and DOT 4 brake fluid in its models. This fluid is compliant with the components in the respective brake systems and must not be mixed together in a brake system assembly!
Mixing can lead to the following complaints:
Designation
Vehicle
DOT 3
Campo, Brava, Monterey, Frontera, Trooper, Midi, Rascal
DOT 4
Omega, Insignia, Calibra, Corsa, Kadett, Nova, Astra
If the brake fluid can no longer be clearly identified, the brake system should be bled and refilled using the brake fluid specified by the manufacturer.
DOT 4 brake fluid is more aggressive than DOT 3 and can cause rubber components to swell up and ultimately lead to complete failure of the brake system. If a brake system designed to use DOT 3 fluid was inadvertently filled with DOT 4 fluid, all rubber parts and brake hoses in the brake system must be replaced as a precautionary measure.
Please observe the maintenance and repair notes provided by the vehicle manufacturer in this context.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval and indication of the source. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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