BMW 8 Coupe Series, Owner'S Handbook Manual

Page: 342 / 390

Coolant
General
Coolant is a mixture of water and an additive.
Not all commercially available additives are suita‐
ble for the vehicle. Information regarding suitable
additives is available from a Service Partner of
the manufacturer or another qualified Service
Partner or a specialist workshop.
Safety notes
WARNING
If the cooling system is opened when the en‐
gine is hot, coolant can escape and cause
scalding. There is a danger of injury. Only open
the cooling system when the engine has
cooled down.
WARNING
Additives are harmful to health and incorrect
additives can damage the engine. There is a
danger of injury and damage to property. Do
not allow additives to come into contact with
clothing, skin or eyes, and do not swallow them.
Only use suitable additives.
Coolant level
General
Vehicles with a petrol engine have two cooling
circuits. Always check the coolant levels of both
coolant tanks and top up if necessary.
The coolant level is shown by Min and Max
marks. The Min and Max marks are located in
different positions depending on the coolant
tank.
Depending on the engine version, the coolant
tank is located on the right or left of the engine
compartment, see page
330 .
Checking the coolant level at the
side marks
1. Allow the engine to cool down.
2. The coolant level is correct if it is between
the Min. and Max. marks on the coolant tank.
Symbol Meaning
Maximum.
Minimum.
Checking the coolant level in the
filler neck
1. Allow the engine to cool down.
2. Turn cap on coolant tank slightly anticlock‐
wise, then allow the pressure to escape.
3. Open cap on coolant tank.
4. The coolant level is correct if it is between
the Min. and Max. marks in the filler neck.
Topping up
1. Allow the engine to cool down.
2. Turn cap on coolant tank slightly anticlock‐
wise, then allow the pressure to escape.
3. Open cap on coolant tank.
4. If necessary, slowly top up to the correct
level; do not overfill.
5. Tighten cap.
6. Have the cause of coolant loss rectified as
soon as possible.
Seite 342
MOBILITY
Service products
342
Online Edition for Part no. xxx - VI/18