BMW 3 Series Owner's Manual page 355

Coolant level
General information
Depending on the motorization, there are up to
two coolant reservoirs in the engine compart‐
ment. Check and add the coolant levels on a reg‐
ular basis.
The coolant level is indicated using the Max mark
in the filler neck of the coolant reservoir.
Additional information:
For an overview, refer to page 347.
Checking the coolant level
1. Let the engine cool down.
2. Opening the hood.
Opening, refer to page 348.
3. Turn the lid of the coolant reservoir slightly
counterclockwise to allow any excess pres‐
sure to dissipate, then open it.
4. Open the coolant reservoir lid.
5. The coolant level is correct when it is just be‐
low the maximum mark in the filler neck.
6. Close the lid.
Adding coolant
1. Let the engine cool down.
2. Opening the hood.
Opening, refer to page 348.
3. Turn the lid of the coolant reservoir slightly
counterclockwise to allow any excess pres‐
sure to dissipate, then open it.
4. Open the coolant reservoir lid.
Online Edition for Part no. 01405A38F56 - VI/21
Operating materials
5. If the coolant is low, slowly add coolant up to
the specified level; do not overfill.
6. Close the lid.
7. Have the cause of the coolant loss eliminated
as soon as possible.
Disposal
Comply with the relevant environmental
protection regulations when disposing of
coolant and coolant additives.
Washer fluid
General information
All windshield washer jets are supplied from one
tank.
Use a mixture of tap water and windshield
washer concentrate. If desired, a windshield
washer concentrate containing antifreeze can be
used.
Recommended minimum fill quantity:
0.2 US gal/1 liter.
Safety information
Warning
Some types of antifreeze can contain harmful
substances and are flammable. There is a risk
of fire and an injury hazard. Follow the instruc‐
tions on the containers. Keep antifreeze away
from ignition sources. Do not refill operating
materials into different bottles. Store operating
materials out of reach of children.
United States: the washer fluid mixture ratio is
regulated by the U.S. EPA and many individual
states; do not exceed the allowable washer fluid
dilution ratio limits that apply. Follow the usage
instructions on the washer fluid container.
Use of BMW's Windshield Washer Concentrate
or the equivalent is recommended.
MOBILITY
355