octane MERCEDES-BENZ A-CLASS HATCHBACK 2008 Owners Manual

Refuelling
169
the filling pump indicates the side of the vehi-
cle. 1
To open the fuel filler flap
2 To insert the fuel cap
3 Tyre pressure table
4 Fuel type
X To open: press the fuel filler flap in the
direction of arrow 1.
X Turn the fuel filler cap to the left and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap 2.
X Only fill the tank until the pump nozzle
switches off.
! Overfilling the fuel tank could damage the
fuel system. X
To close: replace the fuel filler cap and turn
it clockwise. The fuel filler cap audibly
engages.
X Close the fuel filler flap.
i Vehicles with a diesel engine:
if the fuel tank has been run completely dry,
it will be necessary to bleed the fuel system
(Y page 232). Petrol (EN 228)
! Refuel using only unleaded premium
grade petrol with a minimum octane num-
ber of 95 RON/85 MON conforming to
European standard EN 228.
You could otherwise impair engine output
or damage the engine.
i As a temporary measure, only when the
recommended fuel is not available, you
may also use regular unleaded petrol,
91 RON/82.5 MO N. Thismay reduce
engine performance and increase fuel con-
sumption. Avoid driving at full throttle.
In some countries, the available petrol qual-
ity may not be adequate and could cause
coking around the inlet valve. In such
cases, and in consultation with a Mercedes-Benz Service Centre, the petrol
may be mixed with the additive recommen-
ded by Mercedes-Benz (part no.
A000989254510). You must observe the
notes and mixing ratios specified on the
container.
For further information on "Fuel" see
(Y page 292).
Turbo engines !
Refuel using only unleaded Super Plus
with a minimum octane number of
98 RON/88 MON conforming to European
standard EN 228.
You could otherwise impair engine output
or damage the engine.
i If the recommended fuel is not available
and only as a temporary measure, you may
also use premium unleaded petrol,
95 RON/85 MON. This may reduce engine
performance and increase fuel consump-
tion. You must avoid driving at full throttle. Operation
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Driving ab
road 185Driving on wet roads
If water has accumulated to a certain depth
on the road surface, there is a danger of aqua-
planing occurring, even if:
R you drive at low speeds
R the tyres have adequate tread depth
For this reason, do not drive in tyre ruts, and
brake carefully. Driving on flooded roads
If you have to drive on stretches of road on
which water has collected, please bear in
mind that:
R the maximum permitted still water depth is
25 cm.
R you should drive no faster than at walking
pace.
! Bear in mind that vehicles travelling in
front or in the opposite direction create
waves. This may cause the maximum per-
missible water depth to be exceeded.
You must observe these notes. Otherwise,
damage may occur to the engine, electrics
and transmission. Driving abroad
Points to remember
An extensive Mercedes-Benz Service network
is also available in other countries. The
Service Hotline's current telephone numbers
for use when you are abroad are to be found
in the "Service24h" chapter of the Service
Booklet.
Only low-octane fuel is available in certain
countries.
You can find further information about fuel
grades on (Y page 168). Symmetrical dipped beam
If your journey takes you to countries where
vehicles are driven on sides of the road oppo-
site to the country in which the vehicle is reg-
istered, your headlamps must be switched to
symmetrical dipped beam or be partially
masked. Oncoming traffic will be dazzled
less.
X Vehicles with halogen headlamps: mask
the headlamps with special masking tape.
i You can obtain this masking tape from a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre. !
Mercedes-Benz recommends that you
only use genuine Mercedes-Benz masking
tape. Your headlamps could otherwise be
damaged.
Remove the masking tape when you are
once again driving on the same side of the
road as in the country in which your vehicle
is registered.
X Vehicles with projection and bi-xenon
headlamps*: have the headlamps
switched over at a qualified specialist work-
shop, e.g. a Mercedes-Benz Service
Centre. G
Risk of accident
Have your headlamps switched back to
asymmetrical dipped beam if you are driv-
ing in a country in which traffic drives on
the same side of the road as in the country
in which your vehicle was registered. Oth-
erwise, you may dazzle the oncoming traffic
and could cause an accident. Operation
* optional
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