• Quality is tested and indicated on five LEDs in terms of “per cent of water in the brake fluid”.
• LED display: Green: no water – OK.
Yellow: less than 1% of water. – Warming.
Yellow/yellow: approx. 2% of water. – Warming.
Yellow/yellow/red: approx. 3% of water. The oil should be changed.
Yellow/yellow/red/red: At least 4% of water. Change the oil urgently.