Maintenance and Care
79
Carefully read these Operating Instructions before starting any work!
This is especially valid for the chapter on General Safety Instructions
and the safety instructions in each of the chapters.
8.4.2 Changing the coolant
WARNING
Risk of injury due to hot fluid
Coolant gets hot during operation and causes scalding if touched.
For this reason:
S Only touch the coolant drain screw using protective gloves.
User tip
Use a container with a capacity of at least 100 litres for the coolant change.
ENVIRONMENTAL NOTE
Risk of environmental pollution due to incorrect handling of service products
Coolant gets hot during operation and causes scalding if touched.
For this reason:
S Take suitable measures immediately if environmentally hazardous fuels, lubricants or coolants escape
into the environment.
S Inform the relevant local authorities of the damage.
Drain coolant
1. Briefly open and close cap (large cap) on the
filler neck of the expansion tank to compensate
for a difference in pressure.
2 Unscrew the cap on the drain valve
1
.
3. Screw the hose
2
onto the drain valve.
4. Drain coolant.
5. Unscrew the hose
2
from the drain valve.
5. Reinstall drain plugs.
6. Reinstall cap.
7. Fill and vent cooling system.
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