Mercedes-Benz R-Class 2008 Owners Manual - Manual (Page 362)

361
Operation
Engine compartment
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
1 Cap
2 Coolant expansion tank
3 Indicator wall
4 Coolant level
̈ Using a rag, turn cap 1 slowly approx-
imately one half turn counterclockwise
to release any excess pressure.
̈ Continue turning cap 1 counterclock-
wise and remove it.
Coolant level 4 is correct if the level:
ț for cold coolant: reaches the top of
indicator wall
3 visible through the
filling opening
ț for warm coolant: is approximately
0.6 in (1.5 cm) higher
̈ Add coolant as required.
̈ Replace and tighten cap 1.
For more information on coolant, see
“Coolants” (
୴ page 541).
hot fluid and steam will be blown out un-
der pressure.
ț Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene
glycol which may burn if it comes into
contact with hot engine parts.