BMW 2004 645Ci Convertible Manual Do Proprietário

Under the hood

172

Topping up engine oil

Wait until the level has dropped to just on
the lower dipstick mark before adding oil.
In this area a message also appears on the
Control Display.

Store oil, grease etc., well out of the
reach of children; always observe all

warning labels on the containers.

Specified engine oils

The quality of the engine oil selected has
critical significance for the operation and
service life of an engine. BMW continu-
ously approves specific oils after confirm-
ing their suitability for use in its vehicles
with extensive testing.

Use only approved BMW High Perfor-
mance Synthetic Oil.

If you are unable to obtain BMW High Per-
formance Synthetic Oil, you can add small
amounts of another synthetic oil between
oil changes. Use only oils with the API SH
specification or higher.

Ask your BMW center for details con-
cerning the specific BMW High Per-

formance Synthetic Oil or synthetic oils
which have been approved.

You can also call BMW of North America
at 1-800-831-1117 or visit this website:
www.bmwusa.com to obtain this informa-
tion.

BMW engines are designed to oper-
ate without additives, and their use

could even lead to damage in some
cases.

Viscosity ratings

Viscosity is the oil flow rating as defined in
SAE classes.

The selection of the correct SAE class
depends on the climatic conditions in the
area where you typically drive your BMW.

Approved oils are in SAE classes
5W-40 and 5W-30.

These oils may be used for driving in all
ambient temperatures.

Coolant

Do not add coolant to the cooling sys-
tem when the engine is hot. Escaping

coolant can cause burns.

Coolant consists of water and the addition
of antifreeze and anticorrosion agent. Not
all commercially available additives are
suitable for your BMW. Ask your BMW cen-
ter for suitable additives.

Only use suitable additives, as other-
wise engine damage may result. The

additives present a health hazard; observe
the instructions on the containers.

Always observe all applicable envi-
ronmental rules and regulations when

disposing of used coolant additives.

Checking coolant level

The engine must be at ambient temper-
ature

Turn the cap of the expansion tank
counterclockwise to allow any accumu-
lated pressure to escape, then continue
turning to open