MOBILITY -> Fuel for your BMW 4 Series 2013-2020

Fuel  
MOBILITY  
Fuel  
Safety information  
Vehicle features and  
options  
NOTE  
Do not press the Start/Stop button after refuel‐  
ing with the wrong fuel. Furthermore, the cata‐  
lytic converter is permanently damaged. There  
is a risk of damage to property. Do not refuel or  
add the following in the case of gasoline en‐  
gines:  
This chapter describes all standard, country-spe‐  
cific and optional features offered with the series.  
It also describes features that are not necessarily  
available in your vehicle, e. g., due to the selected  
options or country versions. This also applies to  
safety-related functions and systems. When us‐  
ing these functions and systems, the applicable  
laws and regulations must be observed.  
▷ Leaded gasoline.  
▷ Metallic additives, for instance manganese  
or iron.  
Do not press the Start/Stop button after refuel‐  
ing with the wrong fuel. Contact a dealer’s serv‐  
ice center or another qualified service center or  
repair shop.  
Fuel recommendation  
General information  
Depending on the region, many gas stations sell  
fuel that has been customized to winter or  
summer conditions. Fuel that is available in win‐  
ter, for instance helps make a cold start easier.  
NOTE  
Incorrect fuels can damage the fuel system and  
the engine. There is a risk of damage to prop‐  
erty. Do not use fuels with a higher percentage  
of ethanol than recommended. Do not refuel  
with fuels containing methanol, e.g. M5 to  
M100.  
Gasoline  
General information  
For the best fuel efficiency, the gasoline should  
be sulfur-free or very low in sulfur content.  
Fuels that are marked on the gas pump as con‐  
taining metal must not be used.  
NOTE  
Fuels with a maximum ethanol content of 10 %,  
i. e., E10, may be used for refueling.  
Fuel that does not comply with the minimum  
quality can compromise engine function or  
cause engine damage. There is a risk of dam‐  
age to property. Do not fill with fuel that does  
not comply with the minimum quality.  
Ethanol should meet the following quality stan‐  
dards:  
US: ASTM 4806–xx  
CAN: CGSB-3.511–xx  
xx: comply with the current standard in each  
case.  
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Fuel  
MOBILITY  
CAUTION  
The use of poor-quality fuels may result in  
harmful engine deposits or damage. Addition‐  
ally, problems relating to drivability, starting and  
stalling, especially under certain environmental  
conditions such as high ambient temperature  
and high altitude, may occur.  
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 pur‐  
chase gasoline from Top Tier retailers.  
Failure to comply with these recommendations  
may result in the need for unscheduled mainte‐  
nance.  
Recommended fuel grade  
BMW recommends AKI 91.  
Minimum fuel grade  
BMW recommends AKI 89.  
If you use gasoline with this minimum AKI Rating,  
the engine may produce knocking sounds when  
starting at high external temperatures. This has  
no effect on the engine life.  
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