Vehicle features and options
This chapter describes all standard, country-
specific 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 using these functions and
systems, the applicable laws and regulations
must be observed.
Depending on the region, many gas stations
sell fuel that has been customized to winter or
summer conditions. Fuel that is available in
winter, e.g., helps make a cold start easier.
For the best fuel efficiency, the gasoline
should be sulfur-free or very low in sulfur con‐
Fuels that are marked on the gas pump as con‐
taining metal must not be used.
Fuels with a maximum ethanol content of
25 %, i. e. E10 or E25, may be used for refuel‐
Ethanol should meet the following quality
US: ASTM 4806–xx
xx: comply with the current standard in each
Do not press the Start/Stop button after
refueling with the wrong fuel. Furthermore, the
catalytic converter is permanently damaged.
There is a risk of property damage. Do not re‐
fuel or add the following in the case of gasoline
▷ Leaded gasoline.
▷ Metallic additives, e.g., manganese or iron.
Do not press the Start/Stop button after refuel‐
ing with the wrong fuel. Contact a dealer’s
service center or another qualified service cen‐
ter or repair shop.◀
Incorrect fuels can damage the fuel sys‐
tem and the engine. There is a risk of damage
to property. Do not use fuels with a higher per‐
centage of ethanol than recommended. Do not
refuel with fuels containing methanol, e.g. M5
Fuel that does not comply with the mini‐
mum quality can compromise engine function
or cause engine damage. There is a risk of
property damage. Do not fill with fuel that does
not comply with the minimum quality.◀
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.
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‐
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