Get Operation -> Refuelling Guide for Mercedes A Class 4 Door Second Generation (2004-2011)

Operation

Refuelling

ing from adding the wrong fuel is not cov-

Running-in notes

Refuelling

ered by the warranty.

The first 1,500 km

Refuelling

! Do not start the engine if you accidentally

If you treat the engine with sufficient care

G Risk of explosion

refuel with the wrong fuel. Otherwise, the

from the very start, you will be rewarded with

Fuel is highly flammable. Fire, naked flames

fuel could enter the fuel lines. This would

excellent performance for the remainder of

and smoking are therefore prohibited when

require draining of the fuel tank and fuel

the engine's life.

handling fuels.

lines. Notify a qualified specialist workshop

R You should therefore drive at varying road

Before refuelling, always turn off the

and have the fuel tank and fuel lines

and engine speeds for the first 1,500 km.

engine.

drained completely.

R Avoid heavy loads, e.g. driving at full throt-

When you open or close the vehicle with the

G Risk of injury

tle, during this time. Do not exceed 2 / 3 of

key, the fuel filler flap is automatically

Avoid any contact with fuels.

the maximum permissible engine speed for

unlocked or locked.

each gear.

You can damage your health if your skin

The position of the fuel filler cap is to the rear

comes into direct contact with fuel or if you

R Change gear in good time.

on the right. The fuel tank filler flap is shown

inhale fuel vapours.

in the instrument cluster 4. The arrow on

R Do not shift down a gear manually in order

G Risk of fire

to brake.

Do not use petrol to refuel vehicles with a

Vehicles with AUTOTRONIC*:

diesel engine. Never mix diesel with petrol.

R Try to avoid depressing the accelerator

This causes damage to the fuel system and

pedal beyond the pressure point (kick-

engine and could result in the vehicle catch-

down).

ing fire.

R Only use ranges 3, 2 or 1 for slow driving,

e.g. in mountainous terrain.

! Do not use petrol to refuel vehicles with a

After 1,500 km you may gradually bring the

diesel engine. Do not use diesel to refuel

vehicle up to full road and engine speeds.

vehicles with a petrol engine. Even small

amounts of the wrong fuel will cause dam-

age to the injection system. Damage result-

168

Operation

Refuelling

X To close: replace the fuel filler cap and turn

the filling pump indicates the side of the vehi-

Mercedes-Benz Service Centre, the petrol

cle.

it clockwise. The fuel filler cap audibly

may be mixed with the additive recommen-

engages.

ded by Mercedes-Benz (part no.

A000989254510). You must observe the

X Close the fuel filler flap.

notes and mixing ratios specified on the

i Vehicles with a diesel engine:

container.

if the fuel tank has been run completely dry,

For further information on "Fuel" see

it will be necessary to bleed the fuel system

( Y page 292).

( Y page 232).

Turbo engines

Petrol (EN 228)

! Refuel using only unleaded Super Plus

with a minimum octane number of

! Refuel using only unleaded premium

1 To open the fuel filler flap

98 RON/88 MON conforming to European

grade petrol with a minimum octane num-

standard EN 228.

2 To insert the fuel cap

ber of 95 RON/85 MON conforming to

European standard EN 228.

You could otherwise impair engine output

3 Tyre pressure table

or damage the engine.

You could otherwise impair engine output

4 Fuel type

or damage the engine.

i If the recommended fuel is not available

X To open: press the fuel filler flap in the

and only as a temporary measure, you may

direction of arrow 1.

i As a temporary measure, only when the

also use premium unleaded petrol,

recommended fuel is not available, you

X Turn the fuel filler cap to the left and

95 RON/85 MON. This may reduce engine

may also use regular unleaded petrol,

remove it.

performance and increase fuel consump-

91 RON/82.5 MON. This may reduce

X Insert the fuel filler cap into the holder

tion. You must avoid driving at full throttle.

engine performance and increase fuel con-

bracket on the inside of filler flap 2.

sumption. Avoid driving at full throttle.

X Only fill the tank until the pump nozzle

In some countries, the available petrol qual-

switches off.

ity may not be adequate and could cause

coking around the inlet valve. In such

! Overfilling the fuel tank could damage the

cases, and in consultation with a

fuel system.

169

Operation

Refuelling

R vegetable oil

amount of flow improver to the fuel corre-

Diesel (EN 590)

sponding to the outside temperature.

R petrol

! Only use diesel that complies with the

Mix the additive with the diesel in good time,

R paraffin

EN 590 European standard.

before the flow properties of the diesel

You could otherwise impair engine output

R kerosene

become inadequate. Otherwise, malfunctions

or damage the engine.

can only be rectified by heating the entire fuel

Do not add such fuels to diesel fuel and do

You will find further information about die-

system, e.g. by parking the vehicle in a heated

not use any special additives (exception:

sel under "Fuel" in the index.

garage.

flow improvers – see "Low outside temper-

G Risk of fire

atures").

! When refuelling vehicles with a diesel par-

Damage caused by the use of unapproved

Do not use petrol to refuel vehicles with a

ticle filter in countries outside the EU, only

fuels or additives is not covered by the war-

diesel engine. Never mix diesel with petrol.

low-sulphur Euro diesel with less than

ranty.

This would damage the fuel system and

0.005 percent sulphur content by weight

engine and could result in a vehicle fire.

should be used. In countries in which diesel

For further information on "Fuel" see

with a higher sulphur content is available

( Y page 292).

Flow improver

(e.g. 0.035 percent by weight), the engine

The effectiveness of a flow improver is not

oil should be renewed at more frequent

Low outside temperatures

guaranteed with every fuel. Observe the infor-

intervals. More information about intervals

mation provided by the manufacturer when

The flow properties of diesel may be inade-

for changing the engine oil can be obtained

using a flow improver. Only use flow improv-

quate at low ambient temperatures.

from any Mercedes-Benz Service Centre.

ers that have been tested and approved by

To prevent operating problems, diesel fuel

Mercedes-Benz. Information about flow

with improved cold flow qualities is available

! Using fuel that does not comply with

improvers that have been tested and

during the winter months. Your vehicle must

EN 590 can increase wear and damage the

approved by Mercedes-Benz can be obtained

be refuelled with this winter diesel at temper-

engine and the exhaust system.

from any Mercedes-Benz Service Centre.

atures of -5 °C or below.

Do not use the following:

You can use this winter diesel at tempera-

R marine diesel

tures down to about -20 °C without problems.

R heating oil

If only summer diesel fuel or less cold-resist-

R bio-diesel

ant winter diesel fuel (e.g. in Mediterranean

regions) is available, you should add an

170

Operation -> Refuelling for Your Mercedes A Class 4 Door Second Generation (2004-2011)

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