2018 BMW 3 SERIES Owners Manual

Overview
The oil filler neck is located in the engine comj partment, refer to page 253.
Adding
engine
oil1.Open the hood, refer to page 254.2.Turn the lid counterclockwise.3.Add engine oil.4.Close the cap.
Engine
oil
types
to
add
General
information
The engine oil quality is critical for the life of
the engine.
Safety
information NOTE
Oil additives can damage the engine.
There is a risk of damage to property. Do not use oil additives.'

When selecting an engine oil, make sure that
the engine oil has the viscosity grade SAE 0W-30.
More information about suitable engine oil ratj ings and viscosities of engine oils can be rej
quested from a dealerss service center or anj other qualified service center or repair shop.
Engine
oil
change NOTE
Engine oil that is not changed in timely
fashion can cause increased engine wear and thus engine damage. There is a risk of damageto property. Do not exceed the service data injdicated in the vehicle.'

CoolantVehicle
features
and
optionsThis chapter describes all standard, country-specific and optional features offered with theseries. It also describes features that are notnecessarily available in your vehicle, e. g., due
to the selected options or country versions.
This also applies to safety-related functions
and systems. When using these functions and systems, the applicable laws and regulations
must be observed.
General
information
Not all commercially available additives are
suitable for the vehicle. Information about suitj
able additives is available from a dealerss servj
ice center or another qualified service center or
repair shop.
Safety
information WARNING
With the engine hot and the cooling sysj
tem open, coolant can escape and lead to scalding. There is a risk of injury. Only openthe cooling system with the engine cooleddown.'

Checking
the
coolant
level
in
the
filler
neck
There are yellow Min and Max marks in the
coolant reservoir.1.Let the engine cool.2.Turn the lid of the coolant reservoir slightly counterclockwise to allow any excess
pressure to dissipate, then open it.3.Open the coolant reservoir lid.4.The coolant level is correct if it lies bej tween the minimum and maximum marksin the filler neck.Adding1.Let the engine cool.2.Turn the lid of the coolant reservoir slightlycounterclockwise to allow any excess
pressure to dissipate, then open it.3.If the coolant is low, slowly add coolant up to the specified level; do not overfill.4.Turn the lid until there is an audible click.The arrows on the coolant reservoir andthe lid must point towards one another.5.Have the cause of the coolant loss elimijnated as soon as possible.
Disposal
Comply with the relevant environmenj
tal protection regulations when disposj
ing of coolant and coolant additives.
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MaintenanceVehicle
features
and
options
This chapter describes all standard, country- specific and optional features offered with theseries. It also describes features that are notnecessarily available in your vehicle, e. g., due
to the selected options or country versions.
This also applies to safety-related functions
and systems. When using these functions and systems, the applicable laws and regulations
must be observed.
BMW
maintenance
system The maintenance system indicates requiredmaintenance measures, and thereby provides
support in maintaining road safety and the opj erational reliability of the vehicle.
In some cases, scopes and intervals may vary
according to the country-specific version. Rej
placement work, spare parts, fuels and lubrij
cants, and wear materials are calculated sepaj rately. Further information is available from a
dealerss service center or another qualified service center or repair shop.
Condition
Based
Service
CBS
Concept
Sensors and special algorithms take into acj
count the driving conditions of the vehicle.
CBS uses these to calculate the need for
maintenance.
The system makes it possible to adapt the amount of maintenance corresponding to your user profile.General
information
Information on service requirements, refer to page 112, can be displayed on the Control Disj
play.
Service
data
in
the
remote
control Information on the required maintenance iscontinuously stored in the remote control. Thedealerss service center can read this data outand suggest a maintenance scope for the vehijcle.
Therefore, hand the service advisor the remote
control with which the vehicle was driven most
recently.
Storage
periods Storage periods during which the vehicle batj
tery was disconnected are not taken into acj count.
If this occurs, have a dealer's service center or another qualified service center or repair shopupdate the time-dependent maintenance projcedures, such as checking brake fluid and, if
necessary, changing the engine oil and the mij
crofilter/activated-charcoal filter.
Service
and
WarrantyInformation
Booklet
for
US
models
and
Warranty
and Service
Guide
Booklet
for
Canadian
models
Please consult your Service and Warranty Inj
formation Booklet for US models and Warranty and Service Guide Booklet for Canadian modjels for additional information on service rejquirements.
The manufacturer of your vehicle recommends that maintenance and repair be performed by a
dealerss service center or another qualifiedSeite 261MaintenanceMobility261
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service center or repair shop. Records of reguj
lar maintenance and repair work should be rej
tained.
Socket
for
OBD
Onboard
Diagnosis
Safety
information NOTE
The socket for Onboard Diagnosis is an
intricate component intended to be used in
conjunction with specialized equipment to check the vehicless primary emissions system.Improper use of the socket for Onboard Diagjnosis, or contact with the socket for Onboard
Diagnosis for other than its intended purpose,
can cause vehicle malfunctions and creates risks of personal and property damage. Given
the foregoing, the manufacture of your vehicle
strongly recommends that access to the socket for Onboard Diagnosis be limited to a
dealer's service center or another qualified service center or repair shop or other persons
that have the specialized training and equipj
ment for purposes of properly utilizing the
socket for Onboard Diagnosis.'

Replacing
componentsVehicle
features
and
optionsThis chapter describes all standard, country-specific and optional features offered with theseries. It also describes features that are notnecessarily available in your vehicle, e. g., due
to the selected options or country versions.
This also applies to safety-related functions
and systems. When using these functions and systems, the applicable laws and regulations
must be observed.
Onboard
vehicle
tool
kit
The onboard vehicle tool kit is located on the
right side in the cargo area in a storage comj partment. Open the cover.
Wiper
blade
replacement Safety
information NOTE
The window may sustain damage if the
wiper falls onto it without the wiper blade inj
stalled. There is a risk of damage to property.
Hold the wiper firmly when changing the wiper
blade. Do not fold or switch on the wiper withj
out a wiper blade installed.'

erss service center or another qualified servicecenter or repair shop.
A spare light box is available from a dealerss
service center or another qualified service cenj
ter or repair shop.
Follow the safety information, refer to
page 264.
Light-emitting
diodes
(LEDs) Some items of equipment use light-emitting
diodes installed behind a cover as a light
source. These light-emitting diodes are related
to conventional lasers and are officially desigj
nated as Class 1 light-emitting diodes.
Follow the safety information, refer to
page 264.
Safety
information
Lights
and
bulbs WARNING
Bulbs can get hot during operation. Conj
tact with the bulbs can cause burns. There is a
risk of injury. Only change bulbs after they
have cooled off.'