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Using a rag, slowly open the cap approx-
1
imately
/
turn to relieve excess pres-
2
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.
Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene
glycol which may burn if it comes into
contact with hot engine parts.
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
SLK 350 (example illustration)
1 Coolant expansion tank
2 Cap
3 Marking bar in the expansion tank
Engine compartment
Using a rag, turn cap 2 slowly approx-
imately one half turn counterclockwise
to release any excess pressure.
Continue turning cap 2 counterclock-
wise and remove it.
The coolant level is correct if the level
for cold coolant: reaches marking
bar 3 in expansion tank 1
for warm coolant: is approximately
0.6 in (1.5 cm) higher
Add coolant as required.
Replace and tighten cap 2.
For more information on coolant, see
"Coolants" ( page 448).
Operation
301
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