160n
Coolant
Do not add coolant to the cooling
system when the engine is hot. If
you attempt to do so, escaping coolant
can cause burns.
To avoid the possibility of damage later
on, never use anything other than
factory-approved, nitrite and amino-
free extended-duty antifreeze with
corrosion inhibitor. Your BMW center is
familiar with the factory specifications.
Antifreeze and anticorrosion agents are
hazardous to health. You should always
store them in their original container
and in a location which is inaccessible
to children.
Extended-duty antifreeze with corro-
sion inhibitor contains the flammable
substance ethylene–glycol. For this
reason, do not spill antifreeze with
corrosion inhibitor on hot engine parts.
It could ignite and cause serious
burns.<
Comply with the applicable envi-
ronmental laws regulating the
disposal of extended-duty antifreeze
with corrosion inhibitor.<
Checking coolant levelCorrect coolant level when the engine
is cold approx. +68 7(+20 6):
Unscrew the cap from the expansion
tank.
The coolant level is correct when the
end of the red float is aligned with the
upper edge of the filler opening (refer to
the arrow in the illustration), or max.
0.8 in (2 cm) higher, i. e. up to the mark
on the float (refer also to the schematic
diagramm, next to the cap).530us102
Adding coolant Wait until the engine cools before
removing the cap from the expansion
tank. The needle of the coolant temper-
aturegauge in the instrument cluster
must be located in the blue zone. If it is
not, there is a danger of scalding.
1 Start by turning the cap counter-
clockwise. Pause to allow any accu-
mulated pressure to escape, then
open the cap.
2 If the coolant is low, slowly add
coolant until the correct level is
reached — do not overfill.
The coolant is a mixture of water
and extended-duty antifreeze with
corrosion inhibitor. Always maintain the
prescribed all-season 50:50 mixture
ratio for year-round protection against
internal corrosion. No other additives
are required.
Replace the coolant every four years.
