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EnglishMobility -> Fuel for your BMW 3 Series 2018-2025
Mobility
Fuel
Fuel
Gasoline quality
BMW recommends AKI 91.
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Minimum fuel grade
BMW recommends AKI 89.
Minimum fuel grade
Do not use any gasoline below the mini‐
mum fuel grade as this may impair engine per‐
formance.◀
If you use gasoline with this minimum AKI Rat‐
ing, the engine may produce knocking sounds
when starting at high outside temperatures.
This has no effect on the engine life.
Fuel recommendation
Gasoline
For the best fuel economy, the gasoline should
be sulfur-free or very low in sulfur content.
Fuel quality
Fuels that are marked on the gas pump as con‐
taining metal must not be used.
The use of poor-quality fuels may result
in harmful engine deposits or damage. Addi‐
tionally, problems relating to drivability, start‐
ing and stalling, especially under certain envi‐
ronmental conditions such as high ambient
temperature and high altitude, may occur.
Refuel only with unleaded gasoline with‐
out metallic additives.
Do not refuel with any leaded gasoline or gaso‐
line with metallic additives, e. g. manganese or
iron, or permanent damage to the catalytic
converter and other components.◀
If drivability problems are encountered, we rec‐
ommend switching to a high quality gasoline
brand and a higher octane grade — AKI num‐
ber — for a few tank fills. To avoid harmful en‐
gine deposits, it is highly recommended to
purchase gasoline from BP or Top Tier retail‐
ers.
Fuels with a maximum ethanol content of
10 %, i. e., E10, may be used for refueling.
Ethanol should satisfy the following quality
standards:
Failure to comply with these recommendations
may result in the need for unscheduled main‐
tenance.◀
US: ASTM 4806–xx
CAN: CGSB-3.511–xx
xx: comply with the current standard in each
case.
Diesel
Do not refuel with ethanol E85
Low-Sulfur Diesel
The engine of your BMW is designed for diesel
with low sulfur content:
Do not refuel with E85, i.e., fuel with an
ethanol content of 85 %, or with Flex Fuel, as
this would damage the engine and fuel supply
system.◀
Ultra-Low Sulfur Diesel ASTM D 975-xx.
xx: comply with the current standard in each
case.
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Fuel
Mobility
Use only Ultra-Low Sulfur Diesel.
BMW Advanced Diesel
The fraction of biodiesel in the fuel must
not exceed 5 %, referred to as B5. Do not use
gasoline. If you do fill the tank with the wrong
fuel, e.g., gasoline, do not start the engine as
this may damage the engine.◀
The concept
BMW Advanced Diesel reduces nitrogen ox‐
ides in the diesel emissions by injecting diesel
exhaust fluid reducing agent into the exhaust
system. A chemical reaction takes place inside
the catalytic converter that minimizes nitrogen
oxides.
After adding the wrong fuel, contact your serv‐
ice center or roadside assistance.
If the fuel pump nozzle does not fit in the filler
pipe of your BMW, please check to ensure that
you are refueling at a diesel fuel pump that is
equipped with a diesel fuel pump nozzle.
To be able to start the engine as usual, there
must be an adequate reducing agent.
Warming up the system
In the event the Ultra-Low Sulfur Diesel fuel
cannot be fully inserted into the fuel filler neck,
please contact BMW Roadside Assistance for
instructions on how to add fuel. For more infor‐
mation on BMW Roadside Assistance, refer to
page 221.
In order to warm the engine up to its operating
temperature after a cold start, the automatic
transmission may subsequently shift up to the
next higher gear.
Displays: in the Control Display
Range and refilling quantity
The range until the latest refueling time is dis‐
played in the Control Display.
Winter diesel
To ensure that the diesel engine remains op‐
erational in the winter, use winter diesel.
It is available at gas stations during winter
months.
Reducing agent can be refilled at any time. The
quantity to be added appears in the Control
Display.
The fuel filter heating system, included as a
standard feature, prevents disruption of the
fuel supply while driving.
1. "Vehicle Info"
2. "Vehicle status"
3. "Diesel Exhaust Fluid"
Do not add any diesel additives
Do not add additives, including gasoline;
otherwise, engine damage may occur.◀
Displays in the instrument cluster
Reserve display
This display in the instrument cluster provides
information about the distance that can still be
driven with the current reserve level.
The reserve indication is dis‐
played starting at approx.
1,000 miles/1,600 km remaining
range.
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Mobility
Fuel
Refill in good time
Diesel exhaust fluid at low
temperatures
Due to its physical properties, it is possible
that reducing agent may also need to be re‐
plenished between regular maintenance ap‐
pointments if it is exposed to temperatures be‐
low + 23 ℉/- 5 ℃.
The reducing agent must be replenished
as soon as the Reserve display appears, other‐
wise the engine cannot be restarted.◀
Diesel exhaust fluid on minimum
The engine will continue to run
even when the display shows --,
as long as it is not switched off
and all other operating condi‐
tions are satisfied, sufficient fuel
for example.
The need to replenish it is indicated by the Re‐
serve display in the instrument cluster.
Replenishing Diesel exhaust fluid
yourself in exceptional cases
You can replenish reducing agent yourself in
exceptional cases, e.g., to get to the service
center.
Engine does not start
Do not continue driving to the limit of the
remaining travel distance. Otherwise, you will
not be able to restart the engine after switch‐
ing it off.◀
Avoid contact with Diesel exhaust fluid
Do not come into contact with the reduc‐
ing agent. Otherwise, skin or eye irritations
may result.◀
Filling with incorrect fuel
A Check Control message is displayed when
the tank is filled with the incorrect fuel.
Handling Diesel exhaust fluid
When working with reducing agent in
closed spaces, ensure good ventilation. When
the bottle or container is opened, acrid smell‐
ing fumes may escape.◀
After adding the wrong fuel, contact your serv‐
ice center.
Have the diesel exhaust fluid
replenished
Keeping Diesel exhaust fluid out of reach
of children
The reducing agent is added by the service
center within the context of regular mainte‐
nance. Provided you observe this maintenance
schedule, it is normally necessary to replenish
the fluid once between maintenance appoint‐
ments.
Keep reducing agent out of reach of children◀
Avoid contact with surfaces
Avoid contact of reducing agent with sur‐
faces of the vehicle. Damage could result.◀
It may be necessary to have the fluid replen‐
ished several times under particular circum‐
stances, for example, if the vehicle is driven in
a particularly sporty style or if it is driven at
high altitudes.
Suitable Diesel exhaust fluid
▷
Preferred: BMW Diesel Exhaust Fluid. With
this bottle and its special adapter, Diesel
exhaust fluid can be replenished simply
and safely.
The reducing agent must be replenished as
soon as the reserve display appears in the in‐
strument cluster to avoid not being able to re‐
start the engine.
▷
Alternative: NOx reduction agent AUS 32
Diesel exhaust fluid can be purchased at your
Service Center.
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Fuel
Mobility
The container is full when the fill level in
the bottle no longer changes. It is not pos‐
sible to overfill.
Refill quantity
Refill quantity when the Reserve display first
appears:
Max. 3 gallons/11.3 liters
Tank for reducing agent
5. Pull back the bottle, see arrow, and un‐
screw it.
The tank for the reducing agent is located next
to the fuel tank.
Adding engine oil
1. Open the fuel filler flap, refer to page 178.
2. Turn the fuel cap counterclockwise and re‐
move.
3. Place the bottle on it and turn it as far as it
will go, see arrow.
6. Replace the fuel cap and turn it clockwise.
7. Close the fuel filler flap.
After adding Diesel exhaust fluid
Note
Incorrect fluids
After filling with incorrect fluids, such as
antifreeze for washer water, do not start the
engine, otherwise there is risk of fire.◀
Contact your service center.
4. Press the bottle down, see arrow.
The vehicle container will be filled.
Disposing of bottles
You take your empty Diesel exhaust
fluid bottles to your Service Center for
disposal.
Do not dispose of empty bottles with house‐
hold waste unless this is permitted by local
regulations.
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Mobility
Fuel
Reserve indication
The Reserve indication will still
appear when the engine is
started after refilling. After sev‐
eral minutes of driving, the Re‐
serve indication goes out.
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