Coolant Level - BMW 535i Owner's Manual

Oil types
Note
No oil additives
Oil additives may lead to engine damage.◀
Approved oil types
Your service center can advise you on which en‐
gine oils have been approved by the manufac‐
turer of your vehicle.
The engine oil quality is critical for the life of the
engine.
Only use approved BMW High Performance oil.
Approved oils belong to the viscosity grades
SAE 0W-40, SAE 0W-30, SAE 5W-40 and SAE
5W-30.
Alternative oil types
If the approved engine oils are not available, up
to 1 US quart/liter of another oil with the follow‐
ing specification may be used.
API SM quality standards or higher.
Coolant
General information
Danger of burns from hot engine
Do not open the cooling system while the
engine is hot; otherwise, escaping coolant may
cause burns.◀
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Suitable additives
Only use suitable additives; otherwise, en‐
gine damage may occur. The additives are
harmful to your health.◀
Coolant consists of water and additives.
Not all commercially available additives are suit‐
able for your vehicle. Ask your service center for
suitable additives.

Coolant level

If there is no Min– and Max– mark in the filler
neck of the coolant reservoir, have the coolant
level checked if necessary by your service cen‐
ter and add coolant as needed.
Checking
1. Let the engine cool.
2. Turn the cap of the coolant reservoir slightly
counterclockwise to allow any excess pres‐
sure to dissipate, and then open it.
3. The coolant level is correct if it lies between
the minimum and maximum marks in the
filler neck.
4. If the coolant is low, slowly add coolant up to
the specified level; do not overfill.