To Add Coolant - BMW 740i Owner's Manual

coolant level when the engine
approx. 687/206):
w the cap from the expansion
lant level is correct when the
he red float is aligned with the
dge of the filler opening (refer to
w in the illustration or the sche-
agram next to the cap).
lant is a mixture of water and
d-duty antifreeze with corrosion
. Always maintain the pre-
all-season 50:50 mixture ratio
-round protection against inter-
osion. No other additives are re-
e the coolant every four years.
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To add coolant

Wait until the engine cools before re-
moving the cap from the expansion
tank. The needle of the coolant temper-
ature gauge in the instrument cluster
must be located in the blue zone; other-
wise, there is a danger of scalding.
1 Start by turning the cap counter-
clockwise. Pause to allow any accu-
mulated pressure to escape, then re-
move the cap
2 If the coolant is low, slowly add cool-
ant until the correct level is reached –
do not overfill.
Comply with the applicable envi-
ronmental laws regulating the dis-
posal of extended-duty antifreeze with
corrosion inhibitor.<