Mercedes-Benz 2007 GL 320 CDI Operator's Manual page 384

2007 gl-class
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Warning!
In order to avoid potentially serious burns:
Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature gauge indi-
cates that the coolant is overheated.
Do not remove pressure cap on coolant
reservoir if coolant temperature is
above 158°F (70°C). Allow engine to
cool down before removing cap. The
coolant reservoir contains hot fluid and
is under pressure.
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 gly-
col which may burn if it comes into con-
tact with hot engine parts.
The coolant expansion tank is located on
G
the driver's side of the engine compart-
ment.
1 Cap
2 Coolant expansion tank
3 Indicator wall
4 Coolant level
Engine compartment
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:
for cold coolant: reaches the top of
indicator wall 3 visible through the
filling opening
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" ( page 565).
Operation
383

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2007 gl 4502007 gl-classGl-class 2007Gl 450 2007Gl 320 cdi 2007

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