Vehicle Maintenance
The brake fluid in the reservoir is dark and dirty-looking. What does this mean?
Reviewed on 9 Aug 2026
- ✓ It is old or contaminated and must be replaced
- B It is in perfect condition, that is its normal colour
- C It indicates the level is too high
- D It means there is air in the intake system
Why this is the correct answer
Dark brake fluid indicates it is old or contaminated, which reduces braking performance. It must be replaced.
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