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1.
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Test the quality of the brake fluid with
89 96 985 Brake fluid tester
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Note
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It is important that the tester is below the surface of the fluid.
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LHD:
It may be difficult to insert the probe into the reservoir.
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Warning
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Never
top up with brake fluid before measuring or the measurement will apply to the new brake fluid and give the wrong quality indication.
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If the fluid level is too low to allow for testing in the reservoir, use the pipette and measuring glass.
If the boiling point is below 190°C,
change the brake fluid
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Note
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The lowest permissible boiling point for DOT 4 fluid is 155°C. In order that the boiling point should not fall below this level before the next scheduled service, change the fluid if the boiling point falls below 190°C.
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