MOBILITY -> Coolant for your BMW 1 Series 2019-2024

Coolant  
MOBILITY  
Coolant  
Vehicle equipment  
WARNING  
Additives are harmful to health and using the  
wrong additives can damage the engine. There  
is a risk of injury and material damage. Do not  
allow additives to come into contact with cloth‐  
ing, skin or eyes, and do not swallow them.  
Only use suitable additives.  
This chapter describes all standard, country-spe‐  
cific and optional equipment available for the  
model series. It may therefore describe equip‐  
ment and functions which are not installed in  
your vehicle, for example on account of the spe‐  
cial equipment selected or the country specifica‐  
tion. This also applies to safety-relevant func‐  
tions and systems. Please comply with the  
relevant laws and regulations when using the  
corresponding functions and systems.  
Coolant level  
General  
General  
Depending on the motorisation, there will be one  
or two coolant expansion tank(s) in the engine  
compartment. Check the coolant levels and top  
up.  
Coolant is a mixture of water and an additive.  
Not all commercially available additives are suita‐  
ble for the vehicle. Do not mix additives of differ‐  
ent colours. Comply with the 50:50 mixing ratio  
of water to additive. Information regarding suita‐  
ble additives is available from a Service Partner of  
the manufacturer or another qualified Service  
Partner or a specialist workshop.  
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.  
For further information:  
Engine compartment, see page 310.  
Safety notes  
Checking  
1. Allow the engine to cool down.  
2. Open the bonnet, see page 311.  
WARNING  
3. Turn cap on coolant tank slightly anticlock‐  
wise, then allow the pressure to escape.  
If the cooling system is opened when the en‐  
gine is hot, coolant can escape and cause  
scalding. There is a risk of injury. Only open the  
cooling system when the engine has cooled  
down.  
4. Open cap on coolant tank.  
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Coolant  
MOBILITY  
5. The coolant level is correct if it is between  
the Min. and Max. marks in the filler neck.  
6. Tighten cap.  
Replenishing the coolant  
1. Allow the engine to cool down.  
2. Open the bonnet, see page 311.  
3. Turn cap on coolant tank slightly anticlock‐  
wise, then allow the pressure to escape.  
4. Open cap on coolant tank.  
5. If necessary, slowly top up to the correct  
level; do not overfill.  
6. Tighten cap.  
7. Have the cause of coolant loss rectified as  
soon as possible.  
Disposal  
When disposing of coolant and coolant  
additives, comply with the relevant envi‐  
ronmental protection regulations.  
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