Coolant, Engine oil – BMW M3 Convertible 2005 User Manual

Page 128

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Low ambient temperatures

The oils used by BMW at the factory for
your vehicle model can be used at virtu-
ally any ambient temperature.

However, if the vehicle is exposed to
temperatures below –4

7/–206 for

extended periods, please have your
BMW center recommend a suitable oil.

Coolant

Do not open the cooling system
when the engine is hot. If you do,

escaping coolant can cause burns.

Coolant consists of water and coolant
additives. Not all commercially available
additives are suitable for your BMW.
Your BMW center knows which addi-
tives are appropriate.

Only use approved additives, as
the engine could otherwise be

damaged. The additives are hazardous
to health.

Comply with the applicable envi-
ronmental laws regulating

the disposal of coolant additives.

Checking the coolant level

1. The engine must be at ambient tem-

perature

2. Open the cap for the expansion tank

by turning it slightly counterclock-
wise to allow accumulated pressure
to escape. Then open

3. The coolant level is correct when the

upper end of the red float is even
with the upper edge of the filler neck,
refer to the arrow in the illustration or
to the schematic diagram next to the
filler neck

4. If necessary, slowly add coolant until

the correct level is reached; do not
overfill

5. Close the cap by turning until it is

well tight

6. Have the cause for the coolant loss

removed as soon as possible.

Engine oil